Objective To estimate the incidence of suicidal ideation of Chinese medical students in mainland China over the past ten years by meta-analysis, so as to provide references for suicide prevention and mental health education in Chinese medical students. Methods PubMed, CNKI, WanFang Data and CBM databases were searched for studies investigating the prevalence of suicidal ideation among Chinese medical students in mainland China from January 1st, 2007 to 31st May, 2017. After study selection according to inclusion and exclusion criterion, data extraction and quality assessment, meta-analysis was conducted using Stata 12.0 software. Heterogeneity was evaluated by performing subgroup analyses and meta-regression. We also used sensitivity analysis to determine the influence of individual studies on the overall prevalence estimates. Results A total of 30 studies with 58 757 participants were included, the individual-study incidence of suicidal ideation ranged from 0.84% to 41.35%, with significant between-study heterogeneity detected (I2=99.1%, P<0.001), and the pooled incidence by random-effects model was 12.51% with 95%CI 9.72% to 15.60%. Univariate and multivariate meta-regression revealed that instruments were related to heterogeneity (P<0.01), but other study-level covariates did not contribute to heterogeneity (P>0.1). Conclusion The incidence of suicidal ideation among medical students in mainland China is relatively high, calling more attention to this concern and actions in response for suicide prevention and mental health education in Chinese medical students.
ObjectiveTo systematically evaluate the correlation between interpersonal stress and suicidal ideation. MethodsThe PubMed, EMbase, Cochrane Library, CBM, WanFang Data and CNKI databases were searched to collect studies on the correlation between interpersonal pressure and suicidal ideation from database inception to April 27, 2022. Two researchers independently screened the literature, extracted data and assessed the risk of bias of the included studies. Meta-analysis was then performed using Stata 14.0 software. ResultsA total of 42 studies including 3 cohort studies, and 39 cross-sectional studies, with a total sample size of 193 810 participants were included. Meta-analysis showed that the risk of suicidal ideation was higher in people who had experienced interpersonal pressure than in people who had not (OR=2.11, 95%CI 1.99 to 2.23, P<0.01). Subgroup analysis showed that people in the Americas who had experienced interpersonal pressure were more strongly associated with suicidal ideation than people in other regions of the studied area. Young adults in the study who had experienced interpersonal pressure were more strongly associated with suicidal ideation than other studied age groups; People who had experienced partner pressure were more strongly associated with suicidal ideation than those who had experienced other types of interpersonal pressure. ConclusionThis study shows that people who have experienced interpersonal pressure are at greater risk of suicidal ideation, and there are certain differences among study areas, subjects and types of interpersonal pressure. Due to the limited quantity and quality of the included studies, more high-quality studies are needed to verify the above conclusion.