Abstract
The aim of the study was to investigate the incidence of low-energy fracture of wrist, hip, and spine and the related risk factors in Chinese populations 50 years or older.This study was a part of the Chinese National Fracture Survey (CNFS) carried out in 8 Chinese provinces in 2015. Data on 154,099 Chinese men and women 50 years or older were extracted from the CNFS database for calculations and analyses. Low-energy fracture was defined as fracture caused by slip, trip, or falls from standing height.A total of 247 patients sustained low-energy fractures in 2014, indicating the incidence rate was 160.3/100,000 person-years, with 120.0 [95% confidence interval (CI), 95.5–144.5] and 213.1(95% CI, 180.7–245.6)/100,000 person-years in men and women, respectively. In men, advanced age, alcohol consumption, residence at second floor or above without elevator, sleep duration <7 h/day, and history of past fracture were identified to be significant risk factors for low-energy fractures. In women, advanced age, living in east region, higher latitude zone (40°N –49.9°N), alcohol consumption, more births, sleep duration <7 h/day, and history of past fracture were identified as significant risk factors. Supplementation of calcium or vitamin D or both was identified to be associated with reduced risk of fracture in women (odds ratio, 0.38; 95% CI, 0.20–0.75), but not in men.These epidemiologic data on low-energy fractures provided updated clinical evidence base for national healthcare planning and preventive efforts in China. Corresponding interventions such as decreasing alcohol consumption and sleep improvement should clearly be implemented. For women, especially those with more births and past history of fracture, routine screening of osteoporosis, and intensive nourishment since menopause should be advocated.
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