Hearing levels of adults by race, region, and area of residence.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001299:Audiometry; D001309:Auditory Threshold; D003710:Demography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D044469:Racial Groups; D012424:Rural Population; D012494:Sampling Studies; D012737:Sex Factors; D013223:Statistics as Topic; D014481:United States; D014505:Urban Population