本研究目的在探討骨質疏鬆程度與生理因素及生活型態之關聯性。以94年6月至94年12月到中部某醫學中心接受骨密度檢查者700例為樣本,其中女性529例(年齡21 - 92歲,平均57.9 ±13.3歲),男性171例(年齡21 - 93歲,平均57.28 ±14.91歲)。資料來自檢者自填之問卷及腰椎和兩側股骨頸之骨質密度測量結果。將資料針對骨質密度是否異常進行對數回歸分析,結果:1. 腰椎之有效預測因子為年齡、體重、喝咖啡、吸菸、運動、骨折。2.兩側股骨頸之有效預測因子皆為年齡、體重、運動與骨折。3.女性樣本中停經與否與兩側股骨頸關係未達顯著水準。但是停經與否、是否喝咖啡與腰椎關係達顯著水準。結論:年齡大者、體重輕者、沒有運動者、曾經骨折者骨質密度異常機會較高。性別、身高、是否喝牛奶與有否鈣質補充對骨質密度的影響不顯著。喝咖啡及吸菸與腰椎骨質密度有關但與兩股骨頸之骨質密度關係不顯著。為避免骨質疏鬆,體能活動值得推薦。腰椎骨質密度是否比兩股骨頸之骨質密度易受生活型態之影響值得進一步研究。
The purpose of this study was to predict bone mineral density (BMD) from lifestyle factors. Seven hundred males and females aged 21 to 93 years received BMD examinations at a teaching hospital in Taichung since June 2005 to December 2005. We measured BMD by dual energy X-ray absorptiometry (DXA) at lumbar spine and bilateral femoral necks. Personal life styles including tobacco smoking, alcohol drinking, coffee consumption, exercise, milk consumption, Ca supplementation were also collected by a self-reported form at the BMD examination. Binary logistic regressions were performed for the prediction of BMD conditions. The result indicated that age, body weight, exercise and history of bone fracture are effective predictors of bilateral femoral necks BMD. Age, body weight, coffee consumption, smoking, and history of fracture are effective predictors of lumbar spine BMD. Menopause is an effective predictor of female BMD also. Regular physical activity and maintaining a normal weight are recommended for a healthy BMD.