| Study Characteristic | Sample size | Prevalence (%) | 95% CI | Weight (%) | I2 (95% CI) | P-value |
| Region |
|
|
|
|
|
|
| Central | 1378 | 25.84 | 23.54 - 28.23 | 25.14 | 99.0 (98.5 - 99.3) | <0.0001 |
| Eastern | 587 | 3.75 | 2.36 - 5.62 | 24.96 | ||
| Northern | 478 | 35.77 | 31.47 - 40.25 | 24.89 | ||
| Western | 667 | 33.88 | 30.29 - 37.62 | 25.00 | ||
| Study Period |
|
|
|
|
|
|
| 2009-2013 | 557 | 19.928 | 16.69 - 23.49 | 24.62 | 95.09 (90.4 - 97.5) | <0.0001 |
| 2014-2018 | 622 | 37.460 | 33.64 - 41.40 | 24.79 | ||
| 2019-2023 | 1126 | 22.291 | 19.89 - 24.84 | 25.46 | ||
| Not Reported | 805 | 22.360 | 19.53 - 25.40 | 25.13 | ||
| Gender |
|
|
|
|
|
|
| Male & Female | 1506 | 36.12 | 33.69 - 38.61 | 49.99 | 99.51 (99.2 - 99.7) | <0.0001 |
| Female | 1604 | 14.40 | 12.72 - 16.22 | 50.01 |