. . . . "Statistics" . . "Statistics"@en . "Hearing levels of youths 12-17 years, United States; distribution of monaural hearing levels of youths 12-17 years at frequencies of 250, 500, 1000, 2000, 3000, 4000, 6000, and 8000 hertz as determined in individual air-conduction tests, by age, sex, race, geographic region, size of place of residence, family income, and education of parent"@en . "Hearing levels of youths 12-17 years, United States"@en . . . . . . . . . "Hearing levels of youths 12-17 years" . "Hearing levels of youths 12-17 years, United States : distribution of monaural hearing levels of youths 12-17 years at frequencies of 250, 500, 1000, 2000, 3000, 4000, 6000, and 8000 hertz as determined in individual air-conduction tests, by age, sex, race, geographic region, size of place of residence, family income, and education of parent" . . . . . . . . . . . . . . . "Adolescent United States." . . "Hearing United States Tables." . . "United States" . . "Hearing United States Statistics." . . "Youth United States Health and hygiene." . . "Audiometry statistics & numerical data United States Tables." . . "United States Statistics, Medical." . . "Socioeconomic Factors United States Statistics." . . "Health Surveys statistics & numerical data United States Tables." . . "Socioeconomic Factors United States Tables." . .