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Milk, dietary calcium, and bone fractures in women: a 12-year prospective study

Study shows women who drink two or more glasses of milk per day at a 45% higher risk of developing hip fracture, than women consuming one glass of less per week.
Feskanich D, Willett WC, Stampfer MJ, Colditz GA

Method
This study examined whether higher intakes of milk and other calcium-rich foods during adult years can reduce the risk of osteoporotic fractures. This was a 12-year prospective study among 77761 women, aged 34 through 59 years in 1980, who had never used calcium supplements. Dietary intake was assessed with a food-frequency questionnaire in 1980, 1984, and 1986.
Results
Fractures of the proximal femur (n = 133) and distal radius (n = 1046) from low or moderate trauma were self-reported on biennial questionnaires Women who drank two or more glasses of milk per day had relative risks of 1.45 for hip fracture (95% confidence interval [CI] = 0.87, 2.43) and 1.05 for forearm fracture (95% CI = 0.88, 1.25) when compared with women consuming one glass or less per week.