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Papers by Catherine Dalzell

SIAM J. Sci. Comput., 1993

Smoothing with L-splines involves the use of the penalty term ∣∣x∣∣22=int(Lx)2(t)dt||x||_2^2 = \int {(Lx)^2 (t)dt} ∣∣x∣∣22=int(Lx)2(t)dt ... more Smoothing with L-splines involves the use of the penalty term ∣∣x∣∣22=int(Lx)2(t)dt||x||_2^2 = \int {(Lx)^2 (t)dt} ∣∣x∣∣22=int(Lx)2(t)dt where L is an arbitrary linear differential operator of order m. It also involves the choice of m co...

Journal of the Royal Statistical Society. Series B ( …, 1991

540 RAMSAY AND DALZELL [No. 3, Furthermore, FDA is the natural sequel to MDA, where a datum xt is... more 540 RAMSAY AND DALZELL [No. 3, Furthermore, FDA is the natural sequel to MDA, where a datum xt is a finite dimensional vector, just as the latter follows from the analysis of scalars. Thus the generalization of MDA to FDA has both an applied and an intrinsic interest, and may ...

Pain research & management : the journal of the Canadian Pain Society = journal de la societe canadienne pour le traitement de la douleur, 2015

To maximize the benefit of therapies, patients must understand their condition, recall treatment ... more To maximize the benefit of therapies, patients must understand their condition, recall treatment suggestions and comply with treatments. The Pain Explanation and Treatment Diagram (PETD) is a one-page worksheet that identifies risk factors (health-related habits, sleep, exercise, ergonomics and psychosocial factors) involved in chronic pain. Clinician and patient complete the PETD together, and the clinician notes recommended treatments and lifestyle changes. To examine the effect of use of the PETD on patient recall of diagnostic and treatment information on the sheet. The present study was a cross-sectional analysis. Patients with chronic musculoskeletal pain seen by one physiatrist at an outpatient pain clinic in a university-affiliated hospital between 2009 and 2012 (all of whom received the PETD) were eligible. A structured telephone interview lasting approximately 1 h was used to determine recall of PETD diagnostic and treatment information. Of the 84 eligible patients, 46 wer...

PLOS ONE, 2015

Healthcare personnel influenza immunization rates remain sub-optimal. Following multiple studies ... more Healthcare personnel influenza immunization rates remain sub-optimal. Following multiple studies and expert consultations, the "Successful Influenza Immunization Programs for Healthcare Personnel: A Guide for Program Planners" was produced. This trial assessed the impact of the Guide with facilitation in improving healthcare personnel influenza immunization rates in Canadian healthcare organizations.

Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 2015

Cancer Care Ontario promotes the Edmonton Symptom Assessment System (ESAS) for standardized syste... more Cancer Care Ontario promotes the Edmonton Symptom Assessment System (ESAS) for standardized systematic screening and assessment of symptoms across cancer centers in Ontario, Canada. Attitudes of medical oncologists (MOs), radiation oncologists (ROs), and general practitioners in oncology (GPOs) toward palliative care, and the ESAS were surveyed in Ottawa. A four-part questionnaire was developed, drawing on items from similar studies. Forty respondents (17 MOs, 16 ROs, and 7 GPOs) were interviewed. Attitudes to palliative care: regarding coordination of care across the illness trajectory including end of life by MOs, all ROs disagreed while 71.4 % of GPOs and 41.2 % of MOs agreed that this was the MO's role. Most respondents supported palliative care alongside concurrent anti-tumor therapies (82.4 % MOs, 62.5 % ROs, and 100 % GPOs). Attitudes to ESAS: respondents agreed that the ESAS enhances care and assessment of symptom severity. ROs felt that reviewing the ESAS histogram was ...

The Journal of the American Board of Family Medicine, 2014

Purpose: Difficult clinical signs such as confusing cervical mucus or erratic basal body temperat... more Purpose: Difficult clinical signs such as confusing cervical mucus or erratic basal body temperature can make the use of fertility awareness methods (FAMs) difficult in some cases. The goal of this study was to assess the feasibility of using a cheap urinary luteinizing hormone (LH)-surge identification kit as an adjunct to identify the infertile phase after ovulation when facing these scenarios.

SIAM J. Sci. Comput., 1993

Smoothing with L-splines involves the use of the penalty term ∣∣x∣∣22=int(Lx)2(t)dt||x||_2^2 = \int {(Lx)^2 (t)dt} ∣∣x∣∣22=int(Lx)2(t)dt ... more Smoothing with L-splines involves the use of the penalty term ∣∣x∣∣22=int(Lx)2(t)dt||x||_2^2 = \int {(Lx)^2 (t)dt} ∣∣x∣∣22=int(Lx)2(t)dt where L is an arbitrary linear differential operator of order m. It also involves the choice of m co...

Journal of the Royal Statistical Society. Series B ( …, 1991

540 RAMSAY AND DALZELL [No. 3, Furthermore, FDA is the natural sequel to MDA, where a datum xt is... more 540 RAMSAY AND DALZELL [No. 3, Furthermore, FDA is the natural sequel to MDA, where a datum xt is a finite dimensional vector, just as the latter follows from the analysis of scalars. Thus the generalization of MDA to FDA has both an applied and an intrinsic interest, and may ...

Pain research & management : the journal of the Canadian Pain Society = journal de la societe canadienne pour le traitement de la douleur, 2015

To maximize the benefit of therapies, patients must understand their condition, recall treatment ... more To maximize the benefit of therapies, patients must understand their condition, recall treatment suggestions and comply with treatments. The Pain Explanation and Treatment Diagram (PETD) is a one-page worksheet that identifies risk factors (health-related habits, sleep, exercise, ergonomics and psychosocial factors) involved in chronic pain. Clinician and patient complete the PETD together, and the clinician notes recommended treatments and lifestyle changes. To examine the effect of use of the PETD on patient recall of diagnostic and treatment information on the sheet. The present study was a cross-sectional analysis. Patients with chronic musculoskeletal pain seen by one physiatrist at an outpatient pain clinic in a university-affiliated hospital between 2009 and 2012 (all of whom received the PETD) were eligible. A structured telephone interview lasting approximately 1 h was used to determine recall of PETD diagnostic and treatment information. Of the 84 eligible patients, 46 wer...

PLOS ONE, 2015

Healthcare personnel influenza immunization rates remain sub-optimal. Following multiple studies ... more Healthcare personnel influenza immunization rates remain sub-optimal. Following multiple studies and expert consultations, the "Successful Influenza Immunization Programs for Healthcare Personnel: A Guide for Program Planners" was produced. This trial assessed the impact of the Guide with facilitation in improving healthcare personnel influenza immunization rates in Canadian healthcare organizations.

Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 2015

Cancer Care Ontario promotes the Edmonton Symptom Assessment System (ESAS) for standardized syste... more Cancer Care Ontario promotes the Edmonton Symptom Assessment System (ESAS) for standardized systematic screening and assessment of symptoms across cancer centers in Ontario, Canada. Attitudes of medical oncologists (MOs), radiation oncologists (ROs), and general practitioners in oncology (GPOs) toward palliative care, and the ESAS were surveyed in Ottawa. A four-part questionnaire was developed, drawing on items from similar studies. Forty respondents (17 MOs, 16 ROs, and 7 GPOs) were interviewed. Attitudes to palliative care: regarding coordination of care across the illness trajectory including end of life by MOs, all ROs disagreed while 71.4 % of GPOs and 41.2 % of MOs agreed that this was the MO's role. Most respondents supported palliative care alongside concurrent anti-tumor therapies (82.4 % MOs, 62.5 % ROs, and 100 % GPOs). Attitudes to ESAS: respondents agreed that the ESAS enhances care and assessment of symptom severity. ROs felt that reviewing the ESAS histogram was ...

The Journal of the American Board of Family Medicine, 2014

Purpose: Difficult clinical signs such as confusing cervical mucus or erratic basal body temperat... more Purpose: Difficult clinical signs such as confusing cervical mucus or erratic basal body temperature can make the use of fertility awareness methods (FAMs) difficult in some cases. The goal of this study was to assess the feasibility of using a cheap urinary luteinizing hormone (LH)-surge identification kit as an adjunct to identify the infertile phase after ovulation when facing these scenarios.