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Pubic hair pubertal stage is more strongly associated with female adolescent bone mass than breast pubertal stage in an Asian‐White population in Hawaii
Author(s) -
Novotny Rachel,
Vijayadeva Vinutha,
Grove John,
Daida Yihe,
LeMarchand Loic
Publication year - 2008
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.22.1_supplement.453.7
Subject(s) - pubic hair , bone mineral , anthropometry , medicine , calcaneus , osteoporosis , peak bone mass , breast development , physiology , population , endocrinology , ultrasound , hormone , surgery , radiology , environmental health
Pubertal maturation is important to development of bone mass and development of maximal bone mass is primary prevention for osteoporosis. Tanner pubic hair (PH) and breast (B) pubertal staging is a reference indicator of maturation for females. We examined differences between B and PH stages as indicators of bone mass among adolescent girls in the Female Adolescent Maturation Study in Honolulu. The study includes 107 Asian and White girls, who were measured for bone mineral content (dual‐energy x‐ray absorptiometry, DXA), calcaneal ultrasound, tanner stages, anthropometry, diet and physical activity. PH stage was predictive of increased bone broadband ultrasound attenuation and speed of sound (SOS) by calcaneal ultrasound, and DXA bone mineral density, and marginally for bone mineral content in comparison to B stage. Children with a larger proportion of Asian ethnicity had more bone with all measures. Calcium intake was also significantly associated with increased SOS and DXA measures. Physical activity was significantly associated with calcaneal ultrasound; BMI was significant for (BUA); and protein for (SOS). In sum, PH stage was more strongly associated with Bone Mass than was B stage. These findings suggest that an androgenic hormonal profile is especially important to acquisition of bone mineral during adolescence among Asian and White females. Funding: DOD, USDA, NIH/RCMI