Table 7.
Variables | No. of studies | Sample | cases | Prevalence (95% CI) | Heterogeneity | p value | |
---|---|---|---|---|---|---|---|
Q | I2 (%) | ||||||
Region | |||||||
Amhara region | 11 | 5131 | 163 | 3 (1–4%) | 116.39 | 91.41 | p < 0.001 |
Oromia region | 5 | 1566 | 10 | 1 (0–1%) | 2.13 | 00.00 | p = 0.71 |
South Region | 7 | 3149 | 54 | 1 (1–2%) | 35.77 | 83.23 | p < 0.001 |
Tigray region | 3 | 1902 | 9 | 0 (0–1%) | – | – | – |
Age | |||||||
School | 23 | 10,134 | 204 | 1 (1–2%) | 150.65 | 85.40 | p < 0.001 |
Preschool | 2 | 1492 | 30 | 0 (0–1%) | – | – | – |
Both | 1 | 122 | 2 | 2 (0–6%) | – | – | – |
Year of publication | |||||||
1990–2012 | 11 | 5653 | 79 | 1 (1–2%) | 141.55 | 90.11 | p < 0.001 |
2013–2020 | 15 | 6095 | 157 | 2 (1–2%) | 6088.71 | 72.96 | p < 0.001 |
Overall | 26 | 11,748 | 236 | 1 (1–2%) | 179.49 | 86.07 | p < 0.001 |
CI Confidence interval