Incidence of Low-energy Upper Extremity Fractures and the Risk Factors in Chinese People 50 years or Older.

Objective: To investigate the incidence of low-energy upper extremity fractures and identify the associated risk factors in Chinese people aged 50 years or older.

Methods: This study was a part of the Chinese National Fracture Survey, which was performed between January and May 2015 and aimed to investigate the epidemiology of traumatic fractures in China in 2014. The China National Fracture Study (CNFS) was registered with the Chinese Clinical Trial Registry (number ChiCTR-EPR-15005878).