Awareness of osteoporosis and its relationship with calcaneus quantitative ultrasound in a large Chinese community population

Abstract

Background

The People’s Republic of China has the largest population affected by osteoporosis in the world. However, no population-based survey of osteoporosis awareness in People’s Republic of China has been reported. This study investigated the level of basic awareness of osteoporosis in a large community in People’s Republic of China. The relationship between level of awareness and quantitative ultrasound (US) measurements at the calcaneus was also assessed.

Methods

A questionnaire was completed by 9983 men and women aged 40 years or older in Nanjing, People’s Republic of China, between June and December 2011. During this time, the study participants underwent quantitative US measurement. Data from 9049 of the subjects were included in the final analysis.

Results

The proportion of subjects who were aware of osteoporosis was very low. Only 30.7% had heard of osteoporosis, and only 18.5% had heard of osteoporotic fracture. In total, 52.9% of the subjects drank milk, 16.0% took calcium, 7.1% took vitamin D, and 47.2% were performing regular physical activity. Logistic regression showed that more highly educated older women had significantly better awareness of osteoporosis (P < 0.05). Subjects with a history of a previous osteoporotic fracture also had better awareness (P < 0.05) than subjects without such a history, except for those who drank milk. Similar to previous reports, female sex, old age, a low education level, and a personal history of osteoporotic fracture were significantly associated with a low quantitative US measurement (P < 0.001). Further, drinking milk and having not heard of osteoporosis were significantly associated with a higher quantitative US measurement (P < 0.05), while other indicators of osteoporosis awareness were not associated with quantitative US values (P > 0.05).

Conclusion

Awareness of osteoporosis in People’s Republic of China is very low. National awareness strategies should be implemented, especially for poorly educated young men.

Keywords:

• osteoporosis
• awareness
• quantitative ultrasound
• Chinese

Acknowledgment

This work was supported in part by the Six Kinds of Outstanding Talent Foundation of Jiangsu Province (2010-WS-079), the Priority Academic Program Development of Jiangsu Higher Education Institutions, and the National Clinical Key Specialty Construction Projects of China. We thank all the participants in this study, along with Professor Rongbin Yu from Nanjing Medical University for assistance with the statistical analysis.

Disclosure

The authors report no conflicts of interest in this work.