Table 2.

Sub-group meta-analysis of studies from 2018 to 2022

Sub-groups	Numbers of Study	Prevalence (%)	95%CI	I2(%)	P-value	Egger’s test P-value
Region
Eastern	8	4	(2, 6%)	99	P < 0.01	–
Middle	6	3	(1, 6%)	99	P < 0.01	–
Western	10	2	(1, 4%)	99	P < 0.01	0.17
Sex
Male	16	3	(2, 5%)	98	P < 0.01	0.12
Female	17	3	(2, 4%)	97	P < 0.01	0.06
Urban/Rural
Urban	5	2	(0, 5%)	97	P < 0.01	–
Rural	6	3	(1, 6%)	98	P < 0.01	–
Age groups
≥18 years old	14	6	(4, 8%)	98	P < 0.01	0.04
< 18 years old	17	0	(0, 1%)	89	P < 0.01	0.48