Ries P W
U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, Hyattsville, Maryland.
Vital Health Stat 10. 1994 Mar(188):1-75.
Numbers and proportions of persons are estimated according to hearing ability and speech comprehension groups by age, sex, race, years of completed education, family income, usual activity, geographic region, place of residence, limitation of activity due to chronic conditions, annual bed days, number of physician contacts, and respondent-assessed health status. Estimates are based on data collected in household interviews during 1990-91.
根据年龄、性别、种族、受教育年限、家庭收入、日常活动、地理区域、居住地点、慢性病导致的活动受限、年度卧床天数、与医生接触次数以及受访者自我评估的健康状况,按听力能力和言语理解能力分组对人数和比例进行了估算。估算基于1990 - 1991年期间家庭访谈收集的数据。