Shelley A Derksen

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STUDY OBJECTIVE We identify factors that define frequent and highly frequent emergency department (ED) users. METHODS Administrative health care records were used to define less frequent (1 to 6 visits), frequent (7 to 17 visits), and highly frequent (≥18 visits) ED users. Analyses were conducted to determine the most unique demographic, disease, and(More)
BACKGROUND Canadian First Nations people have unique cultural, socioeconomic and health-related factors that may affect fracture rates. We sought to determine the overall and site-specific fracture rates of First Nations people compared with non-First Nations people. METHODS We studied fracture rates among First Nations people aged 20 years and older (n =(More)
While important age-related trends in the use of health care services over the past two decades in Canada have been well described, a comprehensive description of socioeconomic gradients in morbidity and mortality across age cohorts for a representative population has not been accomplished to date in Canada. The objective of this study was to describe(More)
OBJECTIVES People in lower socio-economic groups are more likely to experience disability and cognitive impairments at earlier ages than those in higher status groups. As a result, the need for nursing home care would be expected to be greater among older people of lower socio-economic status. This study examines the effects of income and education on the(More)
BACKGROUND Recently, First Nations people were shown to be at high fracture risk compared with the general population. However, factors contributing to this risk have not been examined. This analysis focusses on geographic area of residence, income level, and diabetes mellitus as possible explanatory variables since they have been implicated in the fracture(More)
Diabetes is associated with increased fracture rates but the effect size, time course and modifying factors are poorly understood. This study was undertaken to assess the effect of diabetes on fracture rates and possible interactions with age, duration of diabetes and comorbidity. A retrospective, population-based matched cohort study (1984-2004) was(More)
OBJECTIVE To describe regional trends in premature mortality in Manitoba. DESIGN Comparison of all-cause and cause-specific mortality of persons less than age 75 in 11 Regional Health Authority populations over two time periods: 1985-89 and 1990-94. RESULTS The provincial premature mortality rate declined over the two time periods (4.00/1,000 to(More)
Efforts to develop global methods for absolute fracture risk prediction are currently limited by uncertainty over the validity of these models in non-White populations. Aboriginal Canadians have higher fractures rates than non-Aboriginals. This analysis examined the interaction of ethnicity with diabetes mellitus, disease comorbidity and substance abuse as(More)
This paper examines the validity of using ecologic measures of socioeconomic status as proxies for individual-level measures in the study of population health. Based on a representative 5% sample of households in a Canadian province, the study integrated three sources of information: administrative records of individual health care utilization, records of(More)
OBJECTIVES To examine the proportion, geographic variation, and predictors of infant hospital readmission within 6 weeks of the postbirth discharge. METHODS A cross-sectional, population-based study was conducted of all infants who were born from 1997 through 2001, linkable to the birth mother, and discharged alive from the hospital (N = 68 681) using(More)