Jens Lauritsen | University of Southern Denmark (original) (raw)
Papers by Jens Lauritsen
I dette studie undersøges hvad skadestueregistrerede trafikuheld kan bidrage med i trafiksikkerhe... more I dette studie undersøges hvad skadestueregistrerede trafikuheld kan bidrage med i trafiksikkerhedsarbejde på veje i åbent land. Hvad karakteriserer skadestueregistrerede trafikuheld i åbent land og adskiller dette sig fra de politiregistrerede trafikuheld i åbent land? Hvorledes dette har indflydelse på modellering af uheldsmodeller til brug for udpegning af risikolokaliteter? Studiet foretages på gennemfarts- og fordelingsveje i åbent land i Svendborg og Assens Kommuner. På Fyn er der gennem mange år foretaget en udvidet registrering af trafikuheld på Odense Universitets hospital (Ulykkes Analyse Gruppen OUH 2017). Dette giver en unik mulighed for at benytte data fra Fyn til at belyse problematikken. Trafikuheld registreret på skadestuen omfatter en større andel eneuheld og cyklister end det er tilfældet i det officielle uheldsregister. Registreringer fra Odense Universitets Hospital kan dermed bidrage med mere viden om uheld med cyklister og eneuheld. Dette vil netop supplere den...
help files) are copyright c © by StataCorp LP. The contents of the supporting files (programs, da... more help files) are copyright c © by StataCorp LP. The contents of the supporting files (programs, datasets, and
BackgroundThe Commission of the European Communities (CEC) has published: European Guidelines on ... more BackgroundThe Commission of the European Communities (CEC) has published: European Guidelines on Quality Criteria for Diagnostic Radiographic Images. These guidelines are considered a gold standard, recommended for use in quality assurance protocols. The objectives of this study: 1) Propose a graded classification format for Danish chiropractic clinics according to the CEC-quality criteria for diagnostic radiographic images of the lumbar spine. 2) Propose a reporting principle for quality of radiographic images. 3) Document variation in radiation exposure among clinics.MethodsThis is a cross-sectional study of image quality based on random sampling from 148 chiropractic clinics. Clinics were included if using: 1) Digital radiography and 2) The chiropractic picture and achieving system(KirPACS) at the Nordic Institute of Chiropractic and Clinical Biomechanics(NIKKB) in Denmark. A sample of 296 lumbar spine series were randomly collected from KirPACS. Two independent observers reviewe...
Ugeskrift for Læger, 2006
Den tiltagende fokusering på kvalitetsstandarder i det danske sundhedsvæsen har medført øget brug... more Den tiltagende fokusering på kvalitetsstandarder i det danske sundhedsvæsen har medført øget brug af monitorering af funktionsevne som indikator for kvalitet. I flere af sygdomsområderne i Det Nationale Indikatorprojekt (www.nip.dk) indgår indikatorer for funktionsevne, ligesom funktionsevne anvendes i nogle landsdækkende kliniske databaser. Dette nødvendiggør brug af standardiseret vurdering af funktionsevne. Måling af funktionsevne på basis af Barthel indeks indgår i Sundhedsvæsenets Klassifikationssystem (SKS)registreringen og i diagnoserelaterede grupper (DRG), hvormed man kan opfange patienter med multimorbiditet, tab af funktionsevne og behov for intervention i forhold til funktionsevne. Standardisering af indeksanvendelse på en afdeling eller institution forudsætter ensartet brug af scoringskriterier, mens brug på tværs af institutioner yderligere forudsætter, at der er enighed om, hvad der forstås ved et givet indeks. Ved internationale sammenligninger er det desuden nødvend...
Injury Prevention, 2016
numbers are punched retrospective from 2010. Information on alcohol and drugs was found in the fr... more numbers are punched retrospective from 2010. Information on alcohol and drugs was found in the free text variable. Definition of Recidivism: In some studies more than two injury episodes. The present study includes five or more. Aim of study is identification of target groups and tailoring community interventions. Results Out of 27090 records on 18667 persons, we identified 360 treated for five or more injury episodes. These 360 were treated in 2321 different injury treatment episodes. The range of episodes was five to 41. Overrepresented groups were: 1) females age 19-29, treated for self-harm, alcohol/drugs/narcotics involved in most cases 2) males age group 19-29, treated for interpersonal violence, also with stories including alcohol and drugs 3) elderlies falling, 4) adolescent and young men in high energy activities. Conclusions A continuous hospital based injury registry can identify characteristics and distribution of injury recidivists in a population.
Stata Technical Bulletin, Feb 1, 2000
Submissions to the STB, including submissions to the supporting files (programs, datasets, and he... more Submissions to the STB, including submissions to the supporting files (programs, datasets, and help files), are on a nonexclusive, free-use basis. In particular, the author grants to StataCorp the nonexclusive right to copyright and distribute the material in accordance with the Copyright Statement below. The author also grants to StataCorp the right to freely use the ideas, including communication of the ideas to other parties, even if the material is never published in the STB. Submissions should be addressed to the Editor. Submission guidelines can be obtained from either the editor or StataCorp. Copyright Statement. The Stata Technical Bulletin (STB) and the contents of the supporting files (programs, datasets, and help files) are copyright c by StataCorp. The contents of the supporting files (programs, datasets, and help files), may be copied or reproduced by any means whatsoever, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the STB. The insertions appearing in the STB may be copied or reproduced as printed copies, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the STB. Written permission must be obtained from Stata Corporation if you wish to make electronic copies of the insertions. Users of any of the software, ideas, data, or other materials published in the STB or the supporting files understand that such use is made without warranty of any kind, either by the STB, the author, or Stata Corporation. In particular, there is no warranty of fitness of purpose or merchantability, nor for special, incidental, or consequential damages such as loss of profits. The purpose of the STB is to promote free communication among Stata users.
![Research paper thumbnail of Efficient, quality-assured data capture in operational research through innovative use of open-access technology [Short communication]](https://attachments.academia-assets.com/104205410/thumbnails/1.jpg)
](Public Health Action, 2013
Ensuring quality of data during electronic data capture has been one of the most neglected compon... more Ensuring quality of data during electronic data capture has been one of the most neglected components of operational research. Multicentre studies are also challenged with issues about logistics of travel, training, supervision, monitoring and troubleshooting support. Allocating resources to these issues can pose a significant bottleneck for operational research in resource-limited settings. In this article, we describe an innovative and efficient way of coordinating data capture in multicentre operational research using a combination of three open access technologies-EpiData for data capture, Dropbox for sharing files and TeamViewer for providing remote support.
EpiData is a MS Windows implementation for dataentry following the QES/CHK/REC file system and st... more EpiData is a MS Windows implementation for dataentry following the QES/CHK/REC file system and structure of EpiInfo version 6. EpiData is freeware and will install as a all-in-one .exe file with options saved in an ini file. Documentation is available as Windows help files and pdf files. Total size for download of setup disk is 1.3 Mb. Epidata includes several
Gaceta Sanitaria, 2007
NOTAS DE CAMPO Resumen EpiData es un programa informático desarrollado por la Asociación EpiData ... more NOTAS DE CAMPO Resumen EpiData es un programa informático desarrollado por la Asociación EpiData (www.epidata.dk) que, siguiendo la filosofía de EpiInfo 6, pretende ofrecer todas las ventajas de ese programa: sencillez, aplicabilidad, pocos requerimientos del sistema operativo y de los sistemas de comunicación, ampliándolas con un enfoque claro hacia lo documentación y la calidad de los datos, y las ventajas que para muchos usuarios tiene el entorno Windows ®. El objetivo de esta Nota es presentar a los potenciales usuarios las ventajas y limitaciones de Epi-Data, que puede ser en breve tiempo el equivalente a lo que EpiInfo 6 fue hace unos pocos años.
Submissions to the STB, including submissions to the supporting files (programs, datasets, and he... more Submissions to the STB, including submissions to the supporting files (programs, datasets, and help files), are on a nonexclusive, free-use basis. In particular, the author grants to StataCorp the nonexclusive right to copyright and distribute the material in accordance with the Copyright Statement below. The author also grants to StataCorp the right to freely use the ideas, including communication of the ideas to other parties, even if the material is never published in the STB. Submissions should be addressed to the Editor. Submission guidelines can be obtained from either the editor or StataCorp. Copyright Statement. The Stata Technical Bulletin (STB) and the contents of the supporting files (programs, datasets, and help files) are copyright c by StataCorp. The contents of the supporting files (programs, datasets, and help files), may be copied or reproduced by any means whatsoever, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the STB. The insertions appearing in the STB may be copied or reproduced as printed copies, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the STB. Written permission must be obtained from Stata Corporation if you wish to make electronic copies of the insertions. Users of any of the software, ideas, data, or other materials published in the STB or the supporting files understand that such use is made without warranty of any kind, either by the STB, the author, or Stata Corporation. In particular, there is no warranty of fitness of purpose or merchantability, nor for special, incidental, or consequential damages such as loss of profits. The purpose of the STB is to promote free communication among Stata users.
International Archives of Occupational and Environmental Health, 1999
Objectives: Cast iron products are alloyed with small quantities of manganese, and foundry furnac... more Objectives: Cast iron products are alloyed with small quantities of manganese, and foundry furnacemen are potentially exposed to manganese during tapping and handling of smelts. Manganese is a neurotoxic substance that accumulates in the central nervous system, where it may cause a neurological disorder that bears many similarities to Parkinson's disease. The aim of the study was to investigate the sources and levels of manganese exposure in foundry furnacemen by a combined measuring of blood-manganese (B-Mn) and manganese in ambient air (air-Mn). Methods: During a period of 16 months, Air-Mn and B-Mn (denoted exposure values') were measured involving 24 furnacemen employed in three small size foundries and 21 scrap recycling workers from one plant. In the study period, 18 furnacemen had B-Mn measured 3±4 weeks after decreasing or stopping exposure (denoted`post-exposure values'). The reference group for the B-Mn measurements consisted of 90 Danish male subjects. Results: Furnacemen who work in insuciently ventilated smelting departments inhale, absorb, and retain signi®cant amounts of manganese in their blood (approx. 2.5±5 lg/l above reference values) despite a generally low measured airborne level of manganese fumes (0.002±0.064 mg/m 3). The`exposure values' compared with`post-exposure values' revealed a signi®cant decrease in the B-Mn (on average 3.7 lg/l) level of the most exposed furnacemen. Two persons in our study were suspected of suering clinically subacute manganese intoxication as both had B-Mn levels beyond the normal limit (25 and 29 lg/l, respectively). The potential problem disappeared completely after cessation of exposure, and the B-Mn levels decreased to 9.4 and 14.1 lg/l, respectively. Conclusions: Risk assessment based on combined measurements of B-Mn and air-Mn seems to be valid in the interpretation of workers' hazard. Our study indicates that B-Mn may be a valuable parameter for estimating recent exposure (within 1±2 weeks). However, more knowledge is needed about the B-Mn level and its relation to neurological symptoms.
Critical Care, 2011
Introduction: No worldwide, standardised definitions exist for documenting, reporting and compari... more Introduction: No worldwide, standardised definitions exist for documenting, reporting and comparing data from severely injured trauma patients. This study evaluated the feasibility of collecting the data variables of the international consensus-derived Utstein Trauma Template. Methods: Trauma centres from three different continents were invited to submit Utstein Trauma Template core data during a defined period, for up to 50 consecutive trauma patients. Directly admitted patients with a New Injury Severity Score (NISS) equal to or above 16 were included. Main outcome variables were data completeness, data differences and data collection difficulty. Results: Centres from Europe (n = 20), North America (n = 3) and Australia (n = 1) submitted data on 965 patients, of whom 783 were included. Median age was 41 years (interquartile range (IQR) 24 to 60), and 73.1% were male. Median NISS was 27 (IQR 20 to 38), and blunt trauma predominated (91.1%). Of the 36 Utstein variables, 13 (36%) were collected by all participating centres. Eleven (46%) centres applied definitions of the survival outcome variable that were different from those of the template. Seventeen (71%) centres used the recommended version of the Abbreviated Injury Scale (AIS). Three variables (age, gender and AIS) were documented in all patients. Completeness > 80% was achieved for 28 variables, and 20 variables were > 90% complete. Conclusions: The Utstein Template was feasible across international trauma centres for the majority of its data variables, with the exception of certain physiological and time variables. Major differences were found in the definition of survival and in AIS coding. The current results give a clear indication of the attainability of information and may serve as a stepping-stone towards creation of a European trauma registry.
Acta Dermato-Venereologica, 2002
The aims of this cross-sectional study were to establish is considerable variability from country... more The aims of this cross-sectional study were to establish is considerable variability from country to country due to variation in exposure to the allergens. Nickel allergy the prevalence measures of contact allergy and allergic contact dermatitis in 8th grade schoolchildren (aged 12-16 is common (2, 3, 5-12, 14, 16) and has been shown to increase the risk of development of hand eczema in years) in Odense, Denmark, and to examine the associations with atopic dermatitis, inhalant allergy and hand adults (18). It is not known whether other contact allergies also increase the risk and if the relationship eczema. Contact allergy to a standard series allergen was found in 15.2% of schoolchildren. The point prevalence of between contact allergy and hand eczema already exists in childhood and adolescence. The relationship between allergic contact dermatitis was 0.7% and the lifetime prevalence 7.2%, predominantl y in girls. The most atopic dermatitis and contact allergy is frequently discussed (19-26). A reduced (19-21), an equal (22, 23) as common contact allergens were nickel (8.6%) and fragrance mix (1.8%). Nickel allergy was clinically relevant well as a higher (24-26) prevalence of contact allergy in atopic dermatitis have been reported. More studies in 69% and fragrance allergy in 29% of cases. A signi cant association was found between contact allergy and hand of these relationships in children and adolescents and in follow-up studies have to be carried out before any eczema while no association was found between contact allergy and atopic dermatitis or inhalant allergy. In the conclusions can be drawn. The aim of this study was to estimate prevalence future this cohort of schoolchildren will be followed with regard to the course and development of atopic diseases, measures of contact allergy and allergic contact dermatitis in an unselected population of adolescents, and to hand eczema and contact dermatitis. Key words: schoolchildren; atopic dermatitis; inhalant allergy; hand eczema; study the relationship to atopic dermatitis, inhalant allergy and hand eczema. multivariate graphical analysis.
This document represents version 3 of the 'Requirements for certification of data centres', publi... more This document represents version 3 of the 'Requirements for certification of data centres', published by ECRIN, the European Clinical Research Infrastructure Network (the first version was produced in 2011, and the second in 2012). The requirements are the criteria used by ECRIN to identify, and then certify, clinical trials units that can provide high quality, compliant and safe data management, as well as effective management of the underlying systems and IT infrastructure. This latest version results from a review in 2015 by ECRIN auditors, members of ECRIN's data centre Certification Board, and invited experts from a variety of trials units in Europe, and it reflects experience gained auditing trials units in 2014. Over and above their use for certification, the requirements are intended to describe good practice in data and IT management in clinical research, and in clinical trials in particular. They were developed by senior staff working in non-commercial clinical trials units in Europe, and are intended as a practical guide for staff working in IT and data management in that sector (though the same principles apply to all clinical research environments). The 129 requirements, or standards, included in the current version are divided into 19 separate lists, some focused on IT, some mainly concerned with data management, and some that deal with both. Each standard has a code, a title, and a single statement summarizing the requirement. This document provides, in addition, explanatory and elaboration material-usually a few paragraphs that attempt to clarify each statement's meaning, and / or give examples of its application, and which also indicate the evidence that would normally be used to assess a unit's compliance. The document also includes a
BMJ open, 2013
The aim of this study was to assess the risk of injuries among children exposed to a stressful li... more The aim of this study was to assess the risk of injuries among children exposed to a stressful life exposure (defined as bereavement) before conception or during fetal life. Population-based cohort study. Denmark. All singleton births in Denmark between 1 January 1995 and 31 December 2006 were identified. These newborns were then linked to mothers, fathers, grandparents and siblings using individually assigned civil personal registration numbers. We identified that data on childhood injuries were obtained from the Danish National Patient Registry, which contains data on all hospital stays and outpatient visits. Incidence rate ratios (IRRs) were estimated from birth using log-linear Poisson regression models, and person-years were used as the offset variable. Age, residence, calendar period, maternal education, maternal income and parental-cohabitation status are treated as time-dependent variables (records were extracted from the offspring's birth year). Exposure to maternal ber...
Scandinavian Journal of Work, Environment & Health, 2007
Hansen ES, Lander F, Lauritsen JM. Time trends in cancer risk and pesticide exposure, a long-term... more Hansen ES, Lander F, Lauritsen JM. Time trends in cancer risk and pesticide exposure, a long-term follow-up of Time trends in cancer risk and pesticide exposure, a long-term follow-up of Danish gardeners.
I dette studie undersøges hvad skadestueregistrerede trafikuheld kan bidrage med i trafiksikkerhe... more I dette studie undersøges hvad skadestueregistrerede trafikuheld kan bidrage med i trafiksikkerhedsarbejde på veje i åbent land. Hvad karakteriserer skadestueregistrerede trafikuheld i åbent land og adskiller dette sig fra de politiregistrerede trafikuheld i åbent land? Hvorledes dette har indflydelse på modellering af uheldsmodeller til brug for udpegning af risikolokaliteter? Studiet foretages på gennemfarts- og fordelingsveje i åbent land i Svendborg og Assens Kommuner. På Fyn er der gennem mange år foretaget en udvidet registrering af trafikuheld på Odense Universitets hospital (Ulykkes Analyse Gruppen OUH 2017). Dette giver en unik mulighed for at benytte data fra Fyn til at belyse problematikken. Trafikuheld registreret på skadestuen omfatter en større andel eneuheld og cyklister end det er tilfældet i det officielle uheldsregister. Registreringer fra Odense Universitets Hospital kan dermed bidrage med mere viden om uheld med cyklister og eneuheld. Dette vil netop supplere den...
help files) are copyright c © by StataCorp LP. The contents of the supporting files (programs, da... more help files) are copyright c © by StataCorp LP. The contents of the supporting files (programs, datasets, and
BackgroundThe Commission of the European Communities (CEC) has published: European Guidelines on ... more BackgroundThe Commission of the European Communities (CEC) has published: European Guidelines on Quality Criteria for Diagnostic Radiographic Images. These guidelines are considered a gold standard, recommended for use in quality assurance protocols. The objectives of this study: 1) Propose a graded classification format for Danish chiropractic clinics according to the CEC-quality criteria for diagnostic radiographic images of the lumbar spine. 2) Propose a reporting principle for quality of radiographic images. 3) Document variation in radiation exposure among clinics.MethodsThis is a cross-sectional study of image quality based on random sampling from 148 chiropractic clinics. Clinics were included if using: 1) Digital radiography and 2) The chiropractic picture and achieving system(KirPACS) at the Nordic Institute of Chiropractic and Clinical Biomechanics(NIKKB) in Denmark. A sample of 296 lumbar spine series were randomly collected from KirPACS. Two independent observers reviewe...
Ugeskrift for Læger, 2006
Den tiltagende fokusering på kvalitetsstandarder i det danske sundhedsvæsen har medført øget brug... more Den tiltagende fokusering på kvalitetsstandarder i det danske sundhedsvæsen har medført øget brug af monitorering af funktionsevne som indikator for kvalitet. I flere af sygdomsområderne i Det Nationale Indikatorprojekt (www.nip.dk) indgår indikatorer for funktionsevne, ligesom funktionsevne anvendes i nogle landsdækkende kliniske databaser. Dette nødvendiggør brug af standardiseret vurdering af funktionsevne. Måling af funktionsevne på basis af Barthel indeks indgår i Sundhedsvæsenets Klassifikationssystem (SKS)registreringen og i diagnoserelaterede grupper (DRG), hvormed man kan opfange patienter med multimorbiditet, tab af funktionsevne og behov for intervention i forhold til funktionsevne. Standardisering af indeksanvendelse på en afdeling eller institution forudsætter ensartet brug af scoringskriterier, mens brug på tværs af institutioner yderligere forudsætter, at der er enighed om, hvad der forstås ved et givet indeks. Ved internationale sammenligninger er det desuden nødvend...
Injury Prevention, 2016
numbers are punched retrospective from 2010. Information on alcohol and drugs was found in the fr... more numbers are punched retrospective from 2010. Information on alcohol and drugs was found in the free text variable. Definition of Recidivism: In some studies more than two injury episodes. The present study includes five or more. Aim of study is identification of target groups and tailoring community interventions. Results Out of 27090 records on 18667 persons, we identified 360 treated for five or more injury episodes. These 360 were treated in 2321 different injury treatment episodes. The range of episodes was five to 41. Overrepresented groups were: 1) females age 19-29, treated for self-harm, alcohol/drugs/narcotics involved in most cases 2) males age group 19-29, treated for interpersonal violence, also with stories including alcohol and drugs 3) elderlies falling, 4) adolescent and young men in high energy activities. Conclusions A continuous hospital based injury registry can identify characteristics and distribution of injury recidivists in a population.
Stata Technical Bulletin, Feb 1, 2000
Submissions to the STB, including submissions to the supporting files (programs, datasets, and he... more Submissions to the STB, including submissions to the supporting files (programs, datasets, and help files), are on a nonexclusive, free-use basis. In particular, the author grants to StataCorp the nonexclusive right to copyright and distribute the material in accordance with the Copyright Statement below. The author also grants to StataCorp the right to freely use the ideas, including communication of the ideas to other parties, even if the material is never published in the STB. Submissions should be addressed to the Editor. Submission guidelines can be obtained from either the editor or StataCorp. Copyright Statement. The Stata Technical Bulletin (STB) and the contents of the supporting files (programs, datasets, and help files) are copyright c by StataCorp. The contents of the supporting files (programs, datasets, and help files), may be copied or reproduced by any means whatsoever, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the STB. The insertions appearing in the STB may be copied or reproduced as printed copies, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the STB. Written permission must be obtained from Stata Corporation if you wish to make electronic copies of the insertions. Users of any of the software, ideas, data, or other materials published in the STB or the supporting files understand that such use is made without warranty of any kind, either by the STB, the author, or Stata Corporation. In particular, there is no warranty of fitness of purpose or merchantability, nor for special, incidental, or consequential damages such as loss of profits. The purpose of the STB is to promote free communication among Stata users.
Public Health Action, 2013
Ensuring quality of data during electronic data capture has been one of the most neglected compon... more Ensuring quality of data during electronic data capture has been one of the most neglected components of operational research. Multicentre studies are also challenged with issues about logistics of travel, training, supervision, monitoring and troubleshooting support. Allocating resources to these issues can pose a significant bottleneck for operational research in resource-limited settings. In this article, we describe an innovative and efficient way of coordinating data capture in multicentre operational research using a combination of three open access technologies-EpiData for data capture, Dropbox for sharing files and TeamViewer for providing remote support.
EpiData is a MS Windows implementation for dataentry following the QES/CHK/REC file system and st... more EpiData is a MS Windows implementation for dataentry following the QES/CHK/REC file system and structure of EpiInfo version 6. EpiData is freeware and will install as a all-in-one .exe file with options saved in an ini file. Documentation is available as Windows help files and pdf files. Total size for download of setup disk is 1.3 Mb. Epidata includes several
Gaceta Sanitaria, 2007
NOTAS DE CAMPO Resumen EpiData es un programa informático desarrollado por la Asociación EpiData ... more NOTAS DE CAMPO Resumen EpiData es un programa informático desarrollado por la Asociación EpiData (www.epidata.dk) que, siguiendo la filosofía de EpiInfo 6, pretende ofrecer todas las ventajas de ese programa: sencillez, aplicabilidad, pocos requerimientos del sistema operativo y de los sistemas de comunicación, ampliándolas con un enfoque claro hacia lo documentación y la calidad de los datos, y las ventajas que para muchos usuarios tiene el entorno Windows ®. El objetivo de esta Nota es presentar a los potenciales usuarios las ventajas y limitaciones de Epi-Data, que puede ser en breve tiempo el equivalente a lo que EpiInfo 6 fue hace unos pocos años.
Submissions to the STB, including submissions to the supporting files (programs, datasets, and he... more Submissions to the STB, including submissions to the supporting files (programs, datasets, and help files), are on a nonexclusive, free-use basis. In particular, the author grants to StataCorp the nonexclusive right to copyright and distribute the material in accordance with the Copyright Statement below. The author also grants to StataCorp the right to freely use the ideas, including communication of the ideas to other parties, even if the material is never published in the STB. Submissions should be addressed to the Editor. Submission guidelines can be obtained from either the editor or StataCorp. Copyright Statement. The Stata Technical Bulletin (STB) and the contents of the supporting files (programs, datasets, and help files) are copyright c by StataCorp. The contents of the supporting files (programs, datasets, and help files), may be copied or reproduced by any means whatsoever, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the STB. The insertions appearing in the STB may be copied or reproduced as printed copies, in whole or in part, as long as any copy or reproduction includes attribution to both (1) the author and (2) the STB. Written permission must be obtained from Stata Corporation if you wish to make electronic copies of the insertions. Users of any of the software, ideas, data, or other materials published in the STB or the supporting files understand that such use is made without warranty of any kind, either by the STB, the author, or Stata Corporation. In particular, there is no warranty of fitness of purpose or merchantability, nor for special, incidental, or consequential damages such as loss of profits. The purpose of the STB is to promote free communication among Stata users.
International Archives of Occupational and Environmental Health, 1999
Objectives: Cast iron products are alloyed with small quantities of manganese, and foundry furnac... more Objectives: Cast iron products are alloyed with small quantities of manganese, and foundry furnacemen are potentially exposed to manganese during tapping and handling of smelts. Manganese is a neurotoxic substance that accumulates in the central nervous system, where it may cause a neurological disorder that bears many similarities to Parkinson's disease. The aim of the study was to investigate the sources and levels of manganese exposure in foundry furnacemen by a combined measuring of blood-manganese (B-Mn) and manganese in ambient air (air-Mn). Methods: During a period of 16 months, Air-Mn and B-Mn (denoted exposure values') were measured involving 24 furnacemen employed in three small size foundries and 21 scrap recycling workers from one plant. In the study period, 18 furnacemen had B-Mn measured 3±4 weeks after decreasing or stopping exposure (denoted`post-exposure values'). The reference group for the B-Mn measurements consisted of 90 Danish male subjects. Results: Furnacemen who work in insuciently ventilated smelting departments inhale, absorb, and retain signi®cant amounts of manganese in their blood (approx. 2.5±5 lg/l above reference values) despite a generally low measured airborne level of manganese fumes (0.002±0.064 mg/m 3). The`exposure values' compared with`post-exposure values' revealed a signi®cant decrease in the B-Mn (on average 3.7 lg/l) level of the most exposed furnacemen. Two persons in our study were suspected of suering clinically subacute manganese intoxication as both had B-Mn levels beyond the normal limit (25 and 29 lg/l, respectively). The potential problem disappeared completely after cessation of exposure, and the B-Mn levels decreased to 9.4 and 14.1 lg/l, respectively. Conclusions: Risk assessment based on combined measurements of B-Mn and air-Mn seems to be valid in the interpretation of workers' hazard. Our study indicates that B-Mn may be a valuable parameter for estimating recent exposure (within 1±2 weeks). However, more knowledge is needed about the B-Mn level and its relation to neurological symptoms.
Critical Care, 2011
Introduction: No worldwide, standardised definitions exist for documenting, reporting and compari... more Introduction: No worldwide, standardised definitions exist for documenting, reporting and comparing data from severely injured trauma patients. This study evaluated the feasibility of collecting the data variables of the international consensus-derived Utstein Trauma Template. Methods: Trauma centres from three different continents were invited to submit Utstein Trauma Template core data during a defined period, for up to 50 consecutive trauma patients. Directly admitted patients with a New Injury Severity Score (NISS) equal to or above 16 were included. Main outcome variables were data completeness, data differences and data collection difficulty. Results: Centres from Europe (n = 20), North America (n = 3) and Australia (n = 1) submitted data on 965 patients, of whom 783 were included. Median age was 41 years (interquartile range (IQR) 24 to 60), and 73.1% were male. Median NISS was 27 (IQR 20 to 38), and blunt trauma predominated (91.1%). Of the 36 Utstein variables, 13 (36%) were collected by all participating centres. Eleven (46%) centres applied definitions of the survival outcome variable that were different from those of the template. Seventeen (71%) centres used the recommended version of the Abbreviated Injury Scale (AIS). Three variables (age, gender and AIS) were documented in all patients. Completeness > 80% was achieved for 28 variables, and 20 variables were > 90% complete. Conclusions: The Utstein Template was feasible across international trauma centres for the majority of its data variables, with the exception of certain physiological and time variables. Major differences were found in the definition of survival and in AIS coding. The current results give a clear indication of the attainability of information and may serve as a stepping-stone towards creation of a European trauma registry.
Acta Dermato-Venereologica, 2002
The aims of this cross-sectional study were to establish is considerable variability from country... more The aims of this cross-sectional study were to establish is considerable variability from country to country due to variation in exposure to the allergens. Nickel allergy the prevalence measures of contact allergy and allergic contact dermatitis in 8th grade schoolchildren (aged 12-16 is common (2, 3, 5-12, 14, 16) and has been shown to increase the risk of development of hand eczema in years) in Odense, Denmark, and to examine the associations with atopic dermatitis, inhalant allergy and hand adults (18). It is not known whether other contact allergies also increase the risk and if the relationship eczema. Contact allergy to a standard series allergen was found in 15.2% of schoolchildren. The point prevalence of between contact allergy and hand eczema already exists in childhood and adolescence. The relationship between allergic contact dermatitis was 0.7% and the lifetime prevalence 7.2%, predominantl y in girls. The most atopic dermatitis and contact allergy is frequently discussed (19-26). A reduced (19-21), an equal (22, 23) as common contact allergens were nickel (8.6%) and fragrance mix (1.8%). Nickel allergy was clinically relevant well as a higher (24-26) prevalence of contact allergy in atopic dermatitis have been reported. More studies in 69% and fragrance allergy in 29% of cases. A signi cant association was found between contact allergy and hand of these relationships in children and adolescents and in follow-up studies have to be carried out before any eczema while no association was found between contact allergy and atopic dermatitis or inhalant allergy. In the conclusions can be drawn. The aim of this study was to estimate prevalence future this cohort of schoolchildren will be followed with regard to the course and development of atopic diseases, measures of contact allergy and allergic contact dermatitis in an unselected population of adolescents, and to hand eczema and contact dermatitis. Key words: schoolchildren; atopic dermatitis; inhalant allergy; hand eczema; study the relationship to atopic dermatitis, inhalant allergy and hand eczema. multivariate graphical analysis.
This document represents version 3 of the 'Requirements for certification of data centres', publi... more This document represents version 3 of the 'Requirements for certification of data centres', published by ECRIN, the European Clinical Research Infrastructure Network (the first version was produced in 2011, and the second in 2012). The requirements are the criteria used by ECRIN to identify, and then certify, clinical trials units that can provide high quality, compliant and safe data management, as well as effective management of the underlying systems and IT infrastructure. This latest version results from a review in 2015 by ECRIN auditors, members of ECRIN's data centre Certification Board, and invited experts from a variety of trials units in Europe, and it reflects experience gained auditing trials units in 2014. Over and above their use for certification, the requirements are intended to describe good practice in data and IT management in clinical research, and in clinical trials in particular. They were developed by senior staff working in non-commercial clinical trials units in Europe, and are intended as a practical guide for staff working in IT and data management in that sector (though the same principles apply to all clinical research environments). The 129 requirements, or standards, included in the current version are divided into 19 separate lists, some focused on IT, some mainly concerned with data management, and some that deal with both. Each standard has a code, a title, and a single statement summarizing the requirement. This document provides, in addition, explanatory and elaboration material-usually a few paragraphs that attempt to clarify each statement's meaning, and / or give examples of its application, and which also indicate the evidence that would normally be used to assess a unit's compliance. The document also includes a
BMJ open, 2013
The aim of this study was to assess the risk of injuries among children exposed to a stressful li... more The aim of this study was to assess the risk of injuries among children exposed to a stressful life exposure (defined as bereavement) before conception or during fetal life. Population-based cohort study. Denmark. All singleton births in Denmark between 1 January 1995 and 31 December 2006 were identified. These newborns were then linked to mothers, fathers, grandparents and siblings using individually assigned civil personal registration numbers. We identified that data on childhood injuries were obtained from the Danish National Patient Registry, which contains data on all hospital stays and outpatient visits. Incidence rate ratios (IRRs) were estimated from birth using log-linear Poisson regression models, and person-years were used as the offset variable. Age, residence, calendar period, maternal education, maternal income and parental-cohabitation status are treated as time-dependent variables (records were extracted from the offspring's birth year). Exposure to maternal ber...
Scandinavian Journal of Work, Environment & Health, 2007
Hansen ES, Lander F, Lauritsen JM. Time trends in cancer risk and pesticide exposure, a long-term... more Hansen ES, Lander F, Lauritsen JM. Time trends in cancer risk and pesticide exposure, a long-term follow-up of Time trends in cancer risk and pesticide exposure, a long-term follow-up of Danish gardeners.