Prevalence and factors associated with fibromyalgia in Mexican patients with systemic lupus erythematosus.
D000293:Adolescent; D000328:Adult; D000368:Aged; D015992:Body Mass Index; D004185:Disability Evaluation; D005260:Female; D005356:Fibromyalgia / Q000145:classification / Q000150:complications / Q000208:ethnology*; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications / Q000208:ethnology*; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D010147:Pain Measurement; D015995:Prevalence; D012720:Severity of Illness Index; D012893:Sleep Wake Disorders / Q000209:etiology