Table 4.
Analysis results of studies among schoolchildren
| label | study | participants | Publication bias | I2 | Analysis model | Prevalence% | CI 95% | P value |
|---|---|---|---|---|---|---|---|---|
| schoolchildren (5–20 years) | ||||||||
| Total | 14 | 20,130 | 0.443 | 98.9 | Random | 11 | 7.5–15.9 | P < 0.001 |
| Girl | 10 | 10,010 | 0.107 | 98.7 | Random | 8.6 | 5-14.2 | P < 0.001 |
| Boy | 8 | 7556 | 0.107 | 98.2 | Random | 7.5 | 4.1–13.4 | P < 0.001 |
| ICHD1 | 7 | 9119 | 0.133 | 96.3 | Random | 6.7 | 4.4–10 | P < 0.001 |
| ICHD2 | 5 | 5554 | 0.806 | 97.3 | Random | 14.5 | 6.9–27.8 | P < 0.001 |
| ICHD3 | 1 | 3244 | - | - | - | 28.1 | 26.5–29.6 | P < 0.001 |
| other | 1 | 2213 | - | - | - | 30 | 28.1–31.9 | P < 0.001 |
| primary school (5–11 years) | ||||||||
| Total | 4 | 4571 | 0.734 | 98.8 | Random | 5.2 | 1.3–18.7 | P < 0.001 |
| Girl | 2 | 2264 | - | 99 | Random | 10.8 | 1.1–56.6 | 0.08 |
| Boy | 2 | 2087 | - | 98.9 | Random | 10.9 | 1.3–53 | 0.06 |
| high school (12–20 years) | ||||||||
| Total | 8 | 8820 | 1 | 99 | Random | 11.2 | 5.8–20.4 | P < 0.001 |
| Girl | 6 | 4421 | 0.452 | 91.1 | Random | 8 | 5.6–11.2 | P < 0.001 |
| Boy | 4 | 2250 | 1 | 92.3 | Random | 8.2 | 4.8–13.7 | P < 0.001 |
CI: Confidence Interval, ICHD: International Classification of Headache Disorders