Doug Coyle

Dr. Doug Coyle


Research Focus & Metrics

Academic Career Length

35Years (1992-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 June 2004 in Canadian Medical Association Journal
Verified
Journal Article
Closed access
PDF file
EGEva Grunfeld
Eva Grunfeld
DCDoug Coyle
Doug Coyle
TWTimothy Whelan
Timothy Whelan
JCJennifer Clinch
Jennifer Clinch
LRLeonard Reyno
Leonard Reyno
RGRobert Glossop
Robert Glossop
Background: The vital role played by family caregivers in supporting dying cancer patients is well recognized, but the burden and economic impact on caregivers is poorly understood. We prospectively examined the psychosocial, occupational and economic impact of caring for a person with a terminal illness. Methods: We studied 89 caregivers of women with advanced breast cancer receiving care at either the Ottawa or Hamilton regional cancer centres in Ontario. Patients were followed until their death or study completion at 3 years. Patients identified a principal caregiver to participate in the study. The Karnofsky Performance Status (KPS) index, the Medical Outcomes Study 36-item Short Form (SF-36), the Hospital Anxiety and Depression Scale, the Zarit Burden Inventory, FAMCARE and the Medical Outcomes Study Social Support Survey were administered during follow-up. Economic data were collected by means of a questionnaire administered by an interviewer. Assessments were conducted every 3 months during the palliative period (KPS score > 50) and every 2 weeks during the terminal period (KPS score ≤ 50). Results: Over half of the caregivers were male (55%) and the patient9s spouse or partner (52%), with a mean age of 53 years. At the start of the palliative period, the caregivers9 mean physical functioning score was better than the patients9 (51.3 v. 35.1, 95% confidence interval [CI] 13.3–20.0); there were similar mean mental functioning scores (46.6 and 47.1 respectively); similar proportions were depressed (11% and 12%); and significantly more caregivers than patients were anxious (35% v. 19%, p = 0.009). More caregivers were depressed (30% v. 9%, p = 0.02) and had a higher level of perceived burden (26.2 v. 19.4, p = 0.02) at the start of the terminal period than at the start of the palliative period. Burden was the most important predictor of both anxiety and depression. Of employed caregivers, 69% reported some form of adverse impact on work. In the terminal period 77% reported missing work because of caregiving responsibilities. Prescription drugs were the most important component of financial burden. Interpretation: Caregivers9 depression and perceived burden increase as patients9 functional status declines. Strategies are needed to help reduce the psychosocial, occupational and economic burden associated with caregiving.

1 July 2015 in The Lancet
Verified
Journal Article
Closed access
JSJasvinder Singh
Jasvinder Singh
CCChris Cameron
Chris Cameron
SNShahrzad Noorbaloochi
Shahrzad Noorbaloochi
TCTyler Cullis
Tyler Cullis
MTMatthew Tucker
Matthew Tucker
GWGeorge A Wells
George A Wells

20 February 2006 in Journal of Clinical Oncology
Verified
Journal Article
Closed access
PDF file
EGEva Grunfeld
Eva Grunfeld
MLMark N. Levine
Mark N. Levine
JJJim A. Julian
Jim A. Julian
DCDoug Coyle
Doug Coyle
BSBarbara Szechtman
Barbara Szechtman
TWTim Whelan
Tim Whelan
Purpose Most women with breast cancer are diagnosed at an early stage and more than 80% will be long-term survivors. Routine follow-up marks the transition from intensive treatment to survivorship. It is usual practice for routine follow-up to take place in specialist clinics. This study tested the hypothesis that follow-up by the patient's family physician is a safe and acceptable alternative to specialist follow-up. Patients and Methods A multicenter, randomized, controlled trial was conducted involving 968 patients with early-stage breast cancer who had completed adjuvant treatment, were disease free, and were between 9 and 15 months after diagnosis. Patients may have continued receiving adjuvant hormonal therapy. Patients were randomly allocated to follow-up in the cancer center according to usual practice (CC group) or follow-up from their own family physician (FP group). The primary outcome was the rate of recurrence-related serious clinical events (SCEs). The secondary outcome was health-related quality of life (HRQL). Results In the FP group, there were 54 recurrences (11.2%) and 29 deaths (6.0%). In the CC group, there were 64 recurrences (13.2%) and 30 deaths (6.2%). In the FP group, 17 patients (3.5%) compared with 18 patients (3.7%) in the CC group experienced an SCE (0.19% difference; 95% CI, −2.26% to 2.65%). No statistically significant differences (P < .05) were detected between groups on any of the HRQL questionnaires. Conclusion Breast cancer patients can be offered follow-up by their family physician without concern that important recurrence-related SCEs will occur more frequently or that HRQL will be negatively affected.

16 April 2003 in JAMA
Verified
Journal Article
Open access
PDF file
PHPaul C. Hébert
Paul C. Hébert
DFDean Fergusson
Dean Fergusson
MBMorris A. Blajchman
Morris A. Blajchman
GWGeorge A. Wells
George A. Wells
AKAndrew Kmetic
Andrew Kmetic
FIfor the Leukoreduction Study Investigators
for the Leukoreduction Study Investigators
Context: A number of countries have implemented a policy of universal leukoreduction of their blood supply, but the potential role of leukoreduction in decreasing postoperative mortality and infection is unclear.Objective: To evaluate clinical outcomes following adoption of a national universal prestorage leukoreduction program for blood transfusions.Design, Setting, and Population: Retrospective before-and-after cohort study conducted from August 1998 to August 2000 in 23 academic and community hospitals throughout Canada, enrolling 14 786 patients who received red blood cell transfusions following cardiac surgery or repair of hip fracture, or who required intensive care following a surgical intervention or multiple trauma.Intervention: Universal prestorage leukoreduction program introduced by 2 Canadian blood agencies. A total of 6982 patients were enrolled during the control period and 7804 patients were enrolled following prestorage leukoreduction.Main Outcome Measures: All-cause in-hospital mortality and serious nosocomial infections (pneumonia, bacteremia, septic shock, all surgical site infections) occurring after first transfusion and at least 2 days after index procedure or intensive care unit admission. Secondary outcomes included rates of posttransfusion fever and antibiotic use.Results: Unadjusted in-hospital mortality rates were significantly lower following the introduction of leukoreduction compared with the control period (6.19% vs 7.03%, respectively; P = .04). Compared with the control period, the adjusted odds of death following leukoreduction were reduced (odds ratio [OR], 0.87; 95% confidence interval [CI], 0.75-0.99), but serious nosocomial infections did not decrease (adjusted OR, 0.97; 95% CI, 0.87-1.09). The frequency of posttransfusion fevers decreased significantly following leukoreduction (adjusted OR, 0.86; 95% CI, 0.79-0.94), as did antibiotic use (adjusted OR, 0.90; 95% CI, 0.82-0.99).Conclusion: A national universal leukoreduction program is potentially associated with decreased mortality as well as decreased fever episodes and antibiotic use after red blood cell transfusion in high-risk patients.

14 July 2015 in Headache: The Journal of Head and Face Pain
Verified
Journal Article
Closed access
PDF file
CCChris Cameron
Chris Cameron
SKShannon Kelly
Shannon Kelly
SHShu‐Ching Hsieh
Shu‐Ching Hsieh
MMMeghan Murphy
Meghan Murphy
LCLi Chen
Li Chen
GWGeorge Wells
George Wells

23 January 2008 in Cochrane Database of Systematic Reviews
Verified
Journal Article
Closed access
PDF file
GWGeorge Wells
George Wells
ACAnn Cranney
Ann Cranney
JPJoan Peterson
Joan Peterson
MBMichel Boucher
Michel Boucher
BSBeverley Shea
Beverley Shea
PTPeter Tugwell
Peter Tugwell