Prevalence of suicidal behavior in adolescents in India: A systematic review and meta-analysis

Suicidal behaviour (SB) in adolescents is an emerging public health issue globally. The present study was undertaken to estimate the overall prevalence of SB among the adolescents (10-19 years of age) in India.

In this systematic review and meta-analysis (SRMA), an extensive literature search in PubMed, Scopus, EBSCO, Web of Science, ProQuest, Embase, Cochrane, and preprint servers (medRxiv, arXiv, bioRxiv, BioRN, ChiRxiv, ChiRN, and SSRN) and assessment of all published articles until 28th February 2023 as per the PROSPERO registration protocol (CRD42023385550), was undertaken.

Studies from India which reported the prevalence of suicidal ideation, suicide attempt, and suicidal plan were included. The quality of the included studies was assessed by risk of bias assessment tool. R version 4.2 was used to conduct all the relevant analyses. Heterogeneity was assessed, and a random effects model for estimating the pooled prevalence of the outcomes was applied. Subgroup analyses were planned based on region, locality (urban/rural) and the study settings (educational institutions/community-based). A meta-regression to analyze the effects of potential moderators on outcomes was done. Sensitivity analyses were planned based on the removal of outliers and poor-quality studies. Publication bias was tested by Doi plot and LFK index.

Pooled prevalence of suicide attempts, suicide ideations and suicide plans RESULTS: A total of 20 studies were identified as eligible for the systematic review, and 19 studies were identified as eligible for the meta-analysis. The pooled prevalence of suicidal ideation was estimated to be 11% (95 % CI 7-15); heterogeneity between the studies was high (I² 98 %, p < 0.01). The pooled prevalence of suicidal attempts and suicidal plan was estimated to be 3 % each (95 % CI 2-5); with heterogeneity being high (I² 96 %, p < 0.01). Subgroup analysis revealed a significant variation in suicidal ideation and attempts between different regions of India (South > East > North), and higher prevalence among the educational-institute-based settings and urban areas.

Overall, the prevalence of suicidal behavior among the adolescents in India is high, and they experience all types of suicidal behavior (ideations, plans and attempts).