The impact of changes in fitness and lifestyle upon health care utilization.
D005260:Female; D005102:Health Expenditures; D006296:Health Services / Q000191:economics / Q000706:statistics & numerical data*; D006801:Humans; D008019:Life Style; D008297:Male; D009864:Ontario; D010809:Physical Fitness; D011322:Primary Prevention; D011795:Surveys and Questionnaires