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- W290902695 abstract "Adolescence is a critical period for bone health because the accumulation of bone mass peaks during the teenage years. Failure to attain optimal peak bone mass can increase an individual's risk of osteoporosis and fractures. The aims of the present study were to determine calcium intake of adolescence girls in rural and urban areas and to determine the relationship between dietary intakes of calcium and Bone Mineral Density (BMD) / Bone Mineral Content (BMC). A sample of 652 school girls aged 11 - 16 years residing in Colombo Municipal Council and 529 school girls from Pannala Education Division were selected. Three-day diet diaries were used to measure the dietary energy, calcium intake and skeletomuscular nutrienst. Three-day physical activity records were used to determine physical activity level. BMD and BMC were determined using Dual energy X-ray Absorptiometer scanning the middle finger of the hand. Mean calcium intake of urban and rural adolescents were 488.4 (SD 180.3) mg/day and 364.9 (SD 160.8) mg/day, respectively. The calcium intake of adolescents was significantly lower (P<0.05) than the Recommended Daily Allowances (RDA) (1000 mg). Ninety eight percent of adolescents girls aged 11-16 years did not achieve the RDA for calcium. High calcium intake group had significantly higher BMD and BMC (P<0.0001). The calcium intake showed a significant positive correlation with BMD (r = 0.14, P = <0.01) and BMC (r = 0.17, P = <0.01). The proportion of adolescent girls not achieving the RDA for iron, zinc, magnesium, vitamin A and vitamin C were 89.6, 93.9, 93.9, 96.2 and 54.8% respectively. In conclusion, low calcium intake together with other nutritional inadequacies affects BMD and BMC in adolescence." @default.
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- W290902695 date "2008-01-01" @default.
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- W290902695 title "Calcium intake and bone mineral variables among adolescent schoolgirls in rural and urban areas of Sri Lanka." @default.
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