Disability days: United States, 1980.
D000041:Absenteeism; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D011632:Public Assistance; D012574:Schools; D012959:Socioeconomic Factors; D014481:United States