September 1978

Obesity in Urban Black Adolescents of High and Low Relative Weight at 1 Year of Age

Author Affiliations

From the Departments of Anthropology (Dr Johnston) and Research Medicine (Dr Mack), University of Pennsylvania, Philadelphia.

Am J Dis Child. 1978;132(9):862-864. doi:10.1001/archpedi.1978.02120340038006

• The prevalence of obesity was determined in 798 9 to 15-year-old Philadelphia subjects who had either a high (+1 SD) or a low (−1 SD) relative weight at 1 year of age. During the adolescent years, obesity was assessed by the triceps skin-fold thickness and by the relative weight, using national reference standards from the US Health Examination Survey. The prevalence of obesity for the high relative weight group at 1 year of age was three to four times higher than in the low relative weight group at 1 year of age. Compared with all urban youth of this age range, regardless of their status at 1 year of age, it is estimated that the risk ratio associated with a high relative weight at 1 year of age is approximately 1.6.

(Am J Dis Child 132:862-864, 1978)