PMID: 8596159Nov 1, 1995Paper

Bone mineral density in a native population of Argentina with low calcium intake

The Journal of Rheumatology
A SpindlerC Mautalen

Abstract

To determine the bone mineral density (BMD) of a group of natives from Tafi del Valle, Argentina, to examine possible differences compared to other populations. BMD of lumbar spine and proximal femur was evaluated by dual x-ray absorptiometry (DEXA), in volunteer natives of El Potrerillo y El Rincon (descendants of the Amaichas and Quilmes). Forty-seven women and 31 men between 20 and 80 years of age were assessed. Average daily intake of calcium, physical activity level, serum levels of 25-OH vitamin D (25-OH-D), calcium, phosphorus and alkaline phosphatase were also determined. Average calcium intake was 345 +/- 22.4 mg/day (mean +/- SD). The average sunlight exposure was 3.8 +/- 0.44 h. Degree of physical activity was moderate/hard (grade 4) to very hard (grade 6) in those 60 yrs of age or younger. Laboratory values were normal except for 25-OH-D levels, which were significantly greater in Tafi del Valle (26.8 ng/ml) than in Buenos Aires (20.7 ng/ml); (p < 0.05) BMD of the proximal femur of both sexes was significantly greater compared to the reference groups; Z score of the female population was femoral neck: +/- 0.64 (p < 0.05); Ward's triangle: +/- 0.64 (p < 0.001); trochanter: +/- 0.90 (p < 0.001). Among men, femoral nec...Continue Reading

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