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September 1983

Determinants of Bone Mass in Postmenopausal Women

Author Affiliations

From the Department of Medicine, Nassau Hospital (Drs Aloia, Vaswani, and Ross), Mineola, NY; Brookhaven National Laboratory (Drs Ellis and Cohn), Upton, NY; and the Health Sciences Center (Dr Yeh), State University of New York at Stony Brook.

Arch Intern Med. 1983;143(9):1700-1704. doi:10.1001/archinte.1983.00350090066012

• Eighty white women, mean age 52 years, within one to six years postmenopausal, were studied to examine the relationship of various factors to bone mass. Forty-four of the women had annual measurements of bone mass, so that the rate of bone loss could be determined. Bone mass was measured by total body neutron activation analysis and photon absorptiometry of the distal radius (total body calcium [TBCa] and bone mineral content [BMC], respectively). Breast-feeding and pregnancy were noted to be associated with higher bone mass; those with lower BMC and/or TBCa tended to have higher serum alkaline phosphatase levels, lower testosterone levels, and more years since the cessation of menses. The rate of bone loss from the radius was greater in those with higher parathyroid hormone levels; those with reduced dietary intake of calcium and lower 25-hydroxyvitamin D levels had a greater rate of loss of TBCa.

(Arch Intern Med 1983;143:1700-1704)

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