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    What is the comparative health status and associated risk factors for the MĂ©tis? A population-based study in Manitoba, Canada

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    <p>Abstract</p> <p>Background</p> <p>MĂ©tis are descendants of early 17<sup>th </sup>century relationships between North American Indians and Europeans. This study's objectives were: (1) to compare the health status of the MĂ©tis people to all other residents of Manitoba, Canada; and (2) to analyze factors in predicting the likelihood of diabetes and related lower limb amputation.</p> <p>Methods</p> <p>Using de-identified administrative databases plus the MĂ©tis Population Database housed at the Manitoba Centre for Health Policy, age/sex-adjusted rates of mortality and disease were calculated for MĂ©tis (n = 73,016) and all other Manitobans (n = 1,104,672). Diseases included: hypertension, arthritis, diabetes, ischemic heart disease (age 19+); osteoporosis (age 50+); acute myocardial infarction (AMI) and stroke (age 40+); total respiratory morbidity (TRM, all ages). Using logistic regression, predictors of diabetes (2004/05-2006/07) and diabetes-related lower-limb amputations (2002/03-2006/07) were analyzed.</p> <p>Results</p> <p>Disease rates were higher for MĂ©tis compared to all others: premature mortality before age 75 (4.0 vs. 3.3 per 1000, p < .001); total mortality (9.7 vs. 8.4 per 1000, p < .001); injury mortality (0.58 vs. 0.51 per 1000, p < .03); Potential Years of Life Lost (64.6 vs. 54.6 per 1000, p < .001); all-cause 5-year mortality for people with diabetes (20.8% vs. 18.6%, p < .02); hypertension (27.9% vs. 24.8%, p < .001); arthritis (24.2% vs. 19.9%, p < .001), TRM (13.6% vs. 10.6%, p < .001); diabetes (11.8% vs. 8.8%, p < .001); diabetes-related lower limb amputation (24.1 vs. 16.2 per 1000, p < .001); ischemic heart disease (12.2% vs. 8.7%, p < .001); osteoporosis (12.2% vs. 12.3%, NS), dialysis initiation (0.46% vs. 0.34%, p < .001); AMI (5.4 vs. 4.3 per 1000, p < .001); stroke (3.6 vs. 2.9 per 1000, p < .001). Controlling for geography, age, sex, income, continuity of care and comorbidities, MĂ©tis were more likely to have diabetes (aOR = 1.29, 95% CI 1.25-1.34), but not diabetes-related lower limb amputation (aOR = 1.13, 95% CI 0.90-1.40, NS). Continuity of care was associated with decreased risk of amputation both provincially (aOR = 0.71, 95% CI 0.62-0.81) and for MĂ©tis alone (aOR = 0.62, 95% CI 0.40-0.96).</p> <p>Conclusion</p> <p>Despite universal healthcare, MĂ©tis' illness and mortality rates are mostly higher. Although elevated diabetes risk persists for the MĂ©tis even after adjusting for sociodemographic, healthcare and comorbidity variables, the risk of amputation for MĂ©tis appears more related to healthcare access rather than ethnicity.</p
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