1. Bone density, calcium intake and vitamin D status in South Asian women living in Auckland, New Zealand.
- Author
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VON HURST, Pamela R., KRUGER, Marlena C., STONEHOUSE, Welma, and COAD, Jane
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ANALYSIS of variance , *ANTHROPOMETRY , *ASIANS , *CALCIUM , *COMPUTER software , *DIET , *INGESTION , *LUMBAR vertebrae , *NUTRITIONAL requirements , *OBESITY , *OSTEOPOROSIS , *STATISTICAL sampling , *STATISTICS , *T-test (Statistics) , *U-statistics , *VITAMIN D , *X-ray densitometry in medicine , *PERIMENOPAUSE , *DATA analysis , *BONE density , *BODY mass index , *DISEASE incidence , *POSTMENOPAUSE , *FOOD diaries , *EPIDEMIOLOGY , *ETHNOLOGY - Abstract
Aim: To investigate the bone health and associated risk factors of a group of South Asian women living in New Zealand. Studies on the Indian subcontinent suggest a high incidence of low bone mineral density in women with poor vitamin D status and low dietary calcium intake. Methods: Subjects were women of South Asian origin (n = 91) living in Auckland, New Zealand. Subjects were stratified by menopausal status. They completed a 4-day food diary, and provided a fasting blood sample. Bone mineral density was measured in the lumbar spine and proximal femur using dual X-ray densitometry. Results: Mean age of premenopausal (n = 71) and postmenopausal (n = 20) women was 39.8 ± 7.8 and 55.3 ± 5.4 years, respectively. Osteoporosis ( T-score ≤−2.5) was present in 32% of postmenopausal and 3% of premenopausal subjects, but only in the lumbar spine. Adequate 25(OH)D levels (>50 nmol/L) were found in only 22% of premenopausal, and 26% of postmenopausal women. A body mass index in the overweight or obese category was found in 61% of premenopausal and 75% of postmenopausal women. Conclusion: The high incidence of osteoporosis in the postmenopausal group could be associated with the early age of oophorectomy or menopause together with low vitamin D status. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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