This study aimed to estimate the prevalence of current smoking among medical
students in mainland China through a systematic search across 6 electronic
databases for English or Chinese studies published before May 25, 2018. A total
of 79 studies were included; 26 had a high risk of bias. The overall pooled
prevalence of current smoking was 10.93% (7460/68 253; 95% confidence interval =
0.09%, 13.08%, I2 = 98.6%). This study found a
decreasing prevalence of current smoking over the period studied (survey year
range of 1988-2014). More specifically, the current smoking prevalence in males
decreased progressively across time, while the prevalence in females remained
relatively constant. The overall prevalence in the west was higher than in the
middle or east of mainland China (P = .0061). The overall
prevalence of current smoking increased with year in school (P
= .0028). The present study provides a comprehensive synthesis of current
smoking prevalence among medical students in mainland China. Although there have
been some improvements in the status of tobacco use among medical students,
given the leading role of physicians in tobacco control, sustained efforts are
needed to curb the tobacco epidemic among medical students.