title: Patterns of TW-1 and TW-2 skeletal age differences in 12-19-year-old Belgian boys.
abstract: The pattern of differences between TW-1 and TW-2 skeletal ages was investigated in a mixed longitudinal sample of Belgian school boys aged about 12-19 years. The differences between the TW-1 and TW-2 skeletal ages decrease from 12 years until 15 years, then increase until they stabilize at 17 years. TW-1 skeletal ages are greater than TW-2 skeletal ages, except at 14 and 15 years. This trend confirms the findings in better-off black and white Philadelphia children and in disadvantaged Mexican children (Malina and Little 1981).
mesh_terms: D000293:Adolescent; D000328:Adult; D000365:Age Determination by Skeleton; D000367:Age Factors; D001530:Belgium; D001846:Bone Development; D002348:Carpal Bones / Q000254:growth & development; D002648:Child; D006801:Humans; D008137:Longitudinal Studies; D008297:Male