Yvan St-Pierre

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OBJECTIVE To determine the predictors of outcome in patients with osteoarthritis 2 years after receiving total hip or knee replacement. METHODS A prospective cohort study of 222 osteoarthritis patients undergoing total hip or knee replacement in Boston and Montreal was done. Their postoperative outcomes at 6 months were previously reported. This followup(More)
OBJECTIVE Few longitudinal data exist on the relationship between radiographic damage and self-reported functional disability and direct medical costs in rheumatoid arthritis (RA). We assessed these relationships. METHODS One hundred thirty patients with RA (at time of the first available radiograph, mean age 56.6 yrs, 16.9% male, mean disease duration(More)
Prompt epinephrine administration is crucial in managing anaphylaxis, but epinephrine auto-injectors (EAIs) are underutilized by patients and their families. Children with peanut allergy were recruited from the Allergy Clinics at the Montreal Children's Hospital, food allergy advocacy organizations and organizations providing products to allergic(More)
OBJECTIVE To assess the effect of the tobacco tax cuts made in 1994 on the smoking habits of Canadians. DESIGN Population-based retrospective cohort study. DATA Data from the Survey on Smoking in Canada conducted by Statistics Canada on 11,119 respondents 15 years of age and older, who were interviewed about their smoking habits on 4 occasions,(More)
OBJECTIVE Arthritis or rheumatism (A/R) often leads patients to experiment with complementary and alternative medicine (CAM); we investigated the factors associated with use of CAM. METHODS The source of the data is the cross sectional household component of the 1996-97 National Population Health Survey of the health status and behaviors of Canadians. The(More)
OBJECTIVE To evaluate the association between cigarette smoking and cutaneous damage in systemic lupus erythematosus (SLE). METHODS Our study was performed in SLE clinic registry cohort patients, all of whom fulfilled revised American College of Rheumatology criteria for SLE; patients are followed prospectively with annual assessments that include(More)
BACKGROUND Individuals' valuation of changes in health states in monetary terms have been measured by examining changes in the direct and indirect costs of disease and by the willingness-to-pay (WTP) methodology. METHODS In 2002, a 2-part study was conducted in Quebec. In one part of the study, 121 rheumatoid arthritis (RA) patients from the McGill(More)
BACKGROUND There has been no large study characterizing selection bias in allergy and evaluating school personnel's ability to use an epinephrine auto-injector (EpiPen®). Our objective was to determine if the consent process introduces selection bias by comparing 2 methods of soliciting participation of school personnel in a study evaluating their ability(More)
OBJECTIVE To evaluate the effect of Brief Supportive-Expressive Group Psychotherapy as an adjunct to standard medical care in reducing psychological distress, medical symptoms, and health care costs and improving quality of life in women with systemic lupus erythematosus (SLE). METHODS A randomized clinical trial was conducted with 133 SLE female patients(More)