Has Age at Menarche Changed? Results from the National Health and Nutrition Examination Survey (NHANES) 1999–2004

• Published in: Journal of adolescent health Vol. 40; no. 3; pp. 227 - 231
• Main Authors: McDowell, Margaret A., M.P.H., R.D, Brody, Debra J., M.P.H, Hughes, Jeffery P., M.P.H
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01.03.2007; Elsevier Science
• Subjects: Adolescent; Age; Age Distribution; Biological and medical sciences; Child; Continental Population Groups - statistics & numerical data; Cross-Sectional Studies; Developmental psychology; Ethnicity; Female; Females; Fundamental and applied biological sciences. Psychology; Gynecology and obstetrics; Humans; Menarche; NHANES; Nutrition Surveys; Pediatrics; Psychology and medicine; Psychology. Psychoanalysis. Psychiatry; Psychology. Psychophysiology; Race; United States - epidemiology; USA; United States; North America; America; Menarche; Ethnicity; NHANES; Females; Race; Human; Age of onset; Adolescent; Evolution; Female; Ethnic group

Abstract Purpose To examine self-reported age at menarche in U.S. adults and the associations between age at menarche and race/ethnicity. Methods Data from 1999–2004 National Health and Nutrition Examination Survey (NHANES) for 6788 females 20 years and over were analyzed. Self-reported age at first...