Smoking and body fat mass in relation to bone mineral density and hip fracture: the Hordaland Health Study.

The same tendency was observed after stratifying on sex and age groups, although the results were borderline significant (e.g. the oldest heavy smoking women: differences in regression coefficient = 4.64 per % change in fat mass, 95% confidence interval (CI): −0.07, 9.29; p = 0.050).

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