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ERIC Number: EJ778564
Record Type: Journal
Publication Date: 2007-Nov
Pages: 5
Abstractor: Author
Reference Count: N/A
ISSN: ISSN-0895-8017
Impact of Postcensal Versus Intercensal Population Estimates on Prevalence of Selected Developmental Disabilities--Metropolitan Atlanta, Georgia, 1991-1996
Lazarus, Carrie; Autry, Andy; Baio, Jon; Avchen, Rachel Nonkin; Braun, Kim Van Nardeen
American Journal on Mental Retardation, v112 n6 p462-466 Nov 2007
Prevalence estimates often use U.S. Census Bureau estimates of the population as denominator data. Postcensal estimates are population estimates produced following a decennial census. Intercensal estimates are surrounded by 2 census years and supersede postcensal estimates. In this report we describe prevalence estimates in Atlanta for mental retardation, cerebral palsy, and hearing and vision loss for 8 year olds from 1991-1994 and 1996. We used calculations of postcensal and intercensal population estimates. Intercensal population data were consistently higher than postcensal data, and prevalence estimates for developmental disabilities were lower using intercensal population data. This discrepancy varied by race and ethnicity. Comparison of population estimates, particularly at state and local levels, should be considered to assess meaningful differences in published prevalence estimates using intercensal data.
American Association on Intellectual and Developmental Disabilities. P.O. Box 1897, Lawrence, KS 66044-1897. Tel: 785-843-1235; Fax: 785-843-1274; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Georgia