The correlation between traditional Chinese medicine constitution and primary osteoporosis: A systematic review and meta-analysis.

BACKGROUND

In recent years, as societal awareness of the risks associated with primary osteoporosis (POP) has deepened, numerous studies have explored the relationship between POP and Traditional Chinese Medicine (TCM) constitution types. To further clarify the TCM constitution types closely associated with POP and provide evidence-based medical support for the prevention and treatment of osteoporosis from a TCM perspective, we have employed evidence-based methods to investigate the relationship between POP and TCM constitution types.

METHODS

We conducted a comprehensive search of observational studies on the relationship between POP and TCM constitutional types in databases, including PubMed, Embase, MEDLINE, Web of Science, Chinese National Knowledge Infrastructure (CNKI), Wanfang, and Chinese Scientific Journal Database (VIP), up to October 2023.

RESULTS

After literature selection, data extraction, and bias assessment, 29 studies were included in the meta-analysis, comprising 20 cross-sectional studies and 9 case-control studies. Using R software (version 4.2.3), we analyzed the distribution of TCM constitutional types in POP patients and compared the TCM constitutional types between POP patients and healthy individuals. The meta-analysis results revealed that in POP patients, Yang-deficiency constitution accounted for 22.7% (95% CI: 19.8-25.8%), Yin-deficiency constitution accounted for 15.8% (95% CI: 13.0-18.6%), and Qi-deficiency constitution accounted for 14.1% (95% CI: 12.2-16.0%). The proportions of the three mentioned TCM constitutions all exceed that of the Balanced constitution, with the balanced constitution accounting for 12.3% (95% CI: 7.4-18.1%). The proportions of Yang-deficiency, Yin-deficiency, and Qi-deficiency constitutions were higher in POP patients compared to healthy individuals, with odds ratios (OR) of 2.36 (95% CI: 1.43-3.89), 1.69 (95% CI: 1.36-2.04), and 1.80 (95% CI: 1.23-2.64), respectively, while the Balanced type was lower in POP patients with an OR of 0.16 (95% CI: 0.11-0.23) compared to healthy individuals.

CONCLUSION

The evidence suggests that the Yang-deficiency constitution, Yin-deficiency constitution, and Qi-deficiency constitution are the predominant TCM constitutional types in POP patients. Furthermore, Yang-deficiency constitution, Yin-deficiency constitution, and Qi-deficiency constitution may serve as potential risk factors for POP, while the Balanced constitution may act as a protective factor.