Table 2.

Subgroup analyses of the association between acne and suicide risk.

Factor	No. of studies	OR (95% CI)	Heterogeneity P (I2%)
Region
America	2	1.00 (0.72, 1.39)	.311 (2.4%)
Non Americans	3	1.82 (1.65, 2.01)	.943 (0.0%)
Suicide types
Suicidal behaviors	4	1.38 (0.88, 2.18)	.002 (80.4%)
Suicidal ideation/thoughts	2	1.75 (1.56, 1.96)	.849 (0.0%)
Outcome measures
ICD-9	3	1.16 (0.65, 2.08)	.137 (49.6%)
Others	2	1.82 (1.65, 2.00)	.950 (0.0%)