流行病學顯示亞洲婦女的骨密度較歐洲及美國婦女為低。有監於過去較少有相關研究，同時探討婦女在認知、信念及行為對骨密度的影響。因此，本研究的目的首先探討婦婦人口學、骨質疏鬆症知識、健康信念及健康行為與骨密度的相關性；其次，本研究探討影響社區婦女骨密度的預測因子。98位社區婦女完成骨質疏鬆症問卷並接受骨密度測量。有73.4%的婦女聽過骨質疏鬆症，但只有44.0%的婦女能正確回答預防骨質疏鬆症的相關知識。婦女擁有良好的骨質疏鬆預防信念，但只有23.6%曾接受過骨密度檢查。骨密度檢查結果顯示，骨密度正常婦女在自覺健康得分、骨質疏鬆症知識及健康行為上，分別優於骨密度異常者達1.57、1.10及2.74倍。

　　　　　Epidemiological studies that involve Asian women have revealed that their bone mineral density (BMD) is lower than that of European and American women. Few studies have simultaneously investigated the cognition, beliefs and behavior that affect BMD. The first aim of this study was to elucidate the relationships between demographics, knowledge of osteoporosis, health beliefs about osteoporosis, health-related behavior and BMD. The secondary goal was to explore the major predictive factors that affect the BMD of women in Community. This was an exploratory, community-based, cross-sectional study. Participants (N=98) completed the osteoporosis related questionnaire and were invited to undergo BMD examinations using quantitative ultrasound (QUS). Overall, 73.4% of the participants had heard of the disease but the proportion of correct responses to the questions that tested knowledge of osteoporosis was only 44.0%. The investigation into osteoporosis-related beliefs revealed that women held quite accurate beliefs regarding the prevention of osteoporosis, but only 23.6% of them had undergone a BMD examination. An adjusted odds ratio indicated that if women had normal BMD then they were 1.57 times (95% CI: 1.08~2.29), 1.10 times (95% CI: 1.00~1.12) and 274 (95% CI: 1.09~6.86) times than their counterparts, respectively. The results revealed that women with normal BMD were more likely to have positively self-rated health, knowledge of osteoporosis and preventive behavior than their counterparts. The findings indicated that BMD was subjectively determined by a combination of cognitive and behavioral factors. Early detection was the key to preventing osteoporosis.