Positive affect and disability among older Mexican Americans with arthritis.
D000203:Activities of Daily Living / Q000145:classification*; D000339:Affect; D000368:Aged; D001168:Arthritis / Q000208:ethnology / Q000503:physiopathology / Q000523:psychology; D004185:Disability Evaluation; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D017058:Mexican Americans / Q000706:statistics & numerical data; D011446:Prospective Studies; D012737:Sex Factors; D015206:Southwestern United States / Q000453:epidemiology