Prevalence of osteoporosis in patients with type 2 diabetes mellitus in the Chinese mainland: A protocol of systematic review and meta-analysis

BACKGROUND: Osteoporosis, as a metabolic disease, has become one of the most rapidly growing complications of diabetes mellitus. Previously, we conducted a systematic review to report the estimated prevalence of osteoporosis among patients with type 2 diabetes mellitus (T2DM) from 2001 to 2016. However, some newer studies have been reported, and more potential risk factors for osteoporosis remain controversial and vague. Therefore, the presented review is tailored to synthesize available evidence regarding the pooled prevalence and related risk factors of osteoporosis among T2DM patients in mainland China. METHODS: Both cross-sectional study and cohort study reporting on the prevalence of osteoporosis among patients with T2DM in mainland China, published in Chinese or English, will be considered for inclusion. Records from 4 English databases and 2 Chinese databases will be retrieved from their inceptions to March 2020. The process of study selection, data extraction, and methodologic quality assessment will be independently executed by 2 reviewers. The pooled prevalence of osteoporosis and the prevalence in the exposed and unexposed groups for each potential risk factor will be calculated by the software Stata version 12.0. RESULTS: The current systematic review and meta-analysis will provide more precise prevalence rates and associated risk factors of osteoporosis among people with T2DM in mainland China. CONCLUSION: The study will offer high-quality and explicit evidence for assisting diabetic patients to prevent osteoporosis in mainland China. OSF REGISTRATION: DOI 10.17605/OSF.IO/5ZKJ6.