Table 6.
Variables | No. of studies | Sample | cases | Prevalence (95% CI) | Heterogeneity | p value | |
---|---|---|---|---|---|---|---|
Q | I2 (%) | ||||||
Region | |||||||
Benishangul-Gumuz | 1 | 422 | 35 | 8 (6–11%) | – | – | – |
Amhara region | 32 | 35,678 | 6171 | 16 (13–19%) | 5256.02 | 99.41 | p < 0.001 |
Oromia region | 15 | 6763 | 434 | 6 (5–8%) | 392.85 | 96.44 | p < 0.001 |
South Region | 20 | 8761 | 950 | 12 (9–15%) | 793.61 | 97.61 | p < 0.001 |
Tigray region | 8 | 5665 | 144 | 3 (2–4%) | 96.14 | 92.72 | p < 0.001 |
Age | |||||||
School | 67 | 53,289 | 7648 | 13 (11–15%) | 7814.96 | 99.16 | p < 0.001 |
Preschool | 8 | 3740 | 102 | 2 (1–3%) | 33.50 | 79.10 | p < 0.001 |
Both | 1 | 260 | 4 | 2 (1–4%) | – | – | – |
Year of publication | |||||||
1990–2012 | 19 | 11,253 | 1534 | 13 (9–15%) | 1346.55 | 98.66 | p < 0.001 |
2013–2020 | 57 | 46,036 | 6220 | 11 (9–13%) | 6088.71 | 99.08 | p < 0.001 |
Overall | 76 | 57,289 | 7754 | 12 (10–13%) | 7920.16 | 99.05 | p < 0.001 |
CI Confidence Interval