| Background: Bone mineral density (BMD) of healthy young women is not commonly measured. Descriptive research on factors that influence BMD could be useful in osteoporosis prevention, and could lead to the development of Canadian BMD reference standards. Methods: We recruited a convenience sample of 52 undergraduate students. BMD was measured at three clinically relevant sites using a Discovery Wi (Hologic Inc.) dual energy X-ray absorptiometer. Participants also completed a demographic questionnaire. Results: Mean BMDs measured at the femoral neck, lumbar spine, and whole body were, (respectively), 0.863+/-0.11; 1.019+/-0.09 and 1.085+/-0.07 g/cm2. Television watching, lactose intolerance, alcoholic drinks per week, and age were used in a linear regression model to predict whole body BMD (r2=0.727, p<0.001). Conclusions: Based on criteria established by the World Health Organization, young women in this group present with lower than expected BMD. Factors which influence bone health in older women also affect BMD in young women. |
