Table 3.

Sensitivity analysis of all studies based on the country of origin, the instrument used, and study quality of the included studies

Subgroups	Studies, n	Prevalence (%)	95% CI	Heterogeneity across the studies		Heterogeneity between groups (P-value)
				I2	P-value
Gender
Female	5	32.15	21.53–45.01	89.68	< 0.001	0.431
Male	5	25.07	14.61–39.56	90.09	< 0.001
Quality of studies
High	5	24.27	14.54–37.65	97.07	< 0.001	0.630
Fair	5	28.14		87.06	< 0.001
Tools used
BDI	2	30.64	24.94–37.01	52.82	0.145	0.526
CDI	3	22.13	9.91–42.34	94.84	< 0.001
CES-D	2	35.04	18.00–57.00	95.26	< 0.001
Others	3	21.64	11.46–37.07	92.58	< 0.001
Age group
10–14	3	29.82	20.06–42.83	56.75	0.099	0.414
15–19	5	37.09	24.72–51.43	91.75	< 0.001