jo roislien | University of Stavanger (original) (raw)

Papers by jo roislien

BMC Medical Research Methodology, Nov 9, 2010

Journal of Substance Abuse Treatment, Jun 1, 2017

BMC Medical Research Methodology, May 17, 2014

Acta Anaesthesiologica Scandinavica, Mar 7, 2016

International Journal of Environmental Research and Public Health, Dec 21, 2021

BMC Emergency Medicine, Nov 2, 2020

American Journal of Drug and Alcohol Abuse, Oct 11, 2019

Molecular Medicine, 2021

BackgroundComplement activation is a central mechanism in systemic inflammation and remote organ ... more BackgroundComplement activation is a central mechanism in systemic inflammation and remote organ dysfunction following major trauma. Data on temporal changes of complement activation early after injury is largely missing. We aimed to describe in detail the kinetics of complement activation in individual trauma patients from admission to 10 days after injury, and the association with trauma characteristics and outcome.MethodsIn a prospective cohort of 136 trauma patients, plasma samples obtained with high time resolution (admission, 2, 4, 6, 8 h, and thereafter daily) were assessed for terminal complement complex (TCC). We studied individual TCC concentration curves and calculated a summary measure to obtain the accumulated TCC response 3 to 6 h after injury (TCC-AUC3–6). Correlation analyses and multivariable linear regression analyses were used to explore associations between individual patients’ admission TCC, TCC-AUC3–6, daily TCC during the intensive care unit stay, trauma chara...

Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine, 2021

BackgroundA primary task of the Norwegian helicopter emergency medical services (HEMS) is to prov... more BackgroundA primary task of the Norwegian helicopter emergency medical services (HEMS) is to provide advanced medical care to the critical ill and injured outside of hospitals. Where HEMS bases are located, directly influences who in the population can be reached within a given response time threshold and who cannot. When studying the locations of bases, the focus is often on efficiency, that is, maximizing the total number of people that can be reached within a given set time. This approach is known to benefit people living in densely populated areas, such as cities, over people living in remote areas. The most efficient solution is thus typically not necessarily a fair one. This study aims to incorporate fairness in finding optimal air ambulance base locations.MethodsWe solve multiple advanced mathematical optimization models to determine optimal helicopter base locations, with different optimization criteria related to the level of aversion to inequality, including the utilitaria...

IntroductionMedical simulation is used in helicopter emergency services as a tool for training th... more IntroductionMedical simulation is used in helicopter emergency services as a tool for training the crew. Using in situ simulation we aimed to evaluate the degree of implementation, factors for successful simulation and the crew’s attitude towards this form for training.MethodsA one year prospective study on simulation at all Norwegian helicopter emergency services bases and one search and rescue base. Local facilitators were educated and conducted simulations at their own discretion.ResultsAll bases participated, but the number of simulations attempted at each base varied from 1 to 46. Busier bases had a significantly higher number of aborted simulations. Regardless of base and number of attempted simulations, participating crews scored self-evaluated satisfaction with this form of training highly. The number of local facilitators and their travel distance to work seemed to make no difference to the number of attempted simulations.DiscussionOur study reveals large differences in the...

BMC Anesthesiology, 2020

Background Individualized treatment is a common principle in hospitals. Treatment decisions are m... more Background Individualized treatment is a common principle in hospitals. Treatment decisions are made based on the patient’s condition, including comorbidities. This principle is equally relevant out-of-hospital. Furthermore, comorbidity is an important risk-adjustment factor when evaluating pre-hospital interventions and may aid therapeutic decisions and triage. The American Society of Anesthesiologists Physical Status (ASA-PS) classification system is included in templates for reporting data in physician-staffed pre-hospital emergency medical services (p-EMS) but whether an adequate full pre-event ASA-PS can be assessed by pre-hospital physicians remains unknown. We aimed to explore whether pre-hospital physicians can score an adequate pre-event ASA-PS with the information available on-scene. Methods The study was an inter-rater reliability study consisting of two steps. Pre-event ASA-PS scores made by pre- and in-hospital physicians were compared. Pre-hospital physicians did not h...

Advances in Simulation, 2020

Simulation-based training of emergency teams offers a safe learning environment in which training... more Simulation-based training of emergency teams offers a safe learning environment in which training in the management of the critically ill patient can be planned and practiced without harming the patient. We developed a concept for in situ simulation that can be carried out during on-call time. The aim of this study is to investigate the feasibility of introducing in situ, simulation-based training for the on-call team on a busy helicopter emergency medical service (HEMS) base.We carried out a one-year prospective study on simulation training during active duty at a busy Norwegian HEMS base, which has two helicopter crews on call 24/7. Training was conducted as low fidelity in situ simulation while the teams were on call. The training took place on or near the HEMS base. Eight scenarios were developed with learning objectives related to the mission profile of the base which includes primary missions for both medical and trauma patients of all ages, and interhospital transport of adul...

Wilderness & Environmental Medicine, 2019

Air Medical Journal, 2018

Tidsskrift for Den norske legeforening, 2018

BMC Pregnancy and Childbirth, 2017

American journal of epidemiology, Jan 16, 2015

Seasonal variation in the number of suicides has long been acknowledged. It has been suggested th... more Seasonal variation in the number of suicides has long been acknowledged. It has been suggested that this seasonality has declined in recent years, but studies have generally used statistical methods incapable of confirming this. We examined all suicides occurring in Norway during 1969-2007 (more than 20,000 suicides in total) to establish whether seasonality decreased over time. Fitting of additive Fourier Poisson time-series regression models allowed for formal testing of a possible linear decrease in seasonality, or a reduction at a specific point in time, while adjusting for a possible smooth nonlinear long-term change without having to categorize time into discrete yearly units. The models were compared using Akaike's Information Criterion and analysis of variance. A model with a seasonal pattern was significantly superior to a model without one. There was a reduction in seasonality during the period. Both the model assuming a linear decrease in seasonality and the model ass...

Cardiovascular Diabetology, 2011