Sub group | No. of included studies | Prevalence (95% CI) | Heterogeneity statistics | p-value | I 2 |
---|---|---|---|---|---|
By region | |||||
Addis Ababa City | 1 | 21.30 (17.26, 25.34) | – | – | – |
Amhara region | 3 | 15.89 (08.82, 22.96) | 19.89 | <0.001 | 89.9 |
Oromia region | 6 | 40.44 (32.67, 48.20) | 83.85 | <0.001 | 94.0 |
SNNPR | 5 | 30.71 (21.74, 39.68) | 87.75 | <0.001 | 95.0 |
Somali region | 1 | 56.80 (52.76, 60.84) | – | – | – |
Tigray region | 2 | 27.88 (11.81, 43.95) | 46.91 | <0.001 | 97.9 |
Nationwide study | 2 | 28.10 (18.11, 38.10) | 36.12 | <0.001 | 97.2 |
By study type | |||||
Community based study | 7 | 39.49 (30.84, 48.14) | 321.93 | <0.001 | 98.1 |
Institutional based study | 13 | 27.31 (21.51, 33.10) | 289.66 | <0.001 | 97.7 |