Table 4. Summary table of the data from studies included on orofacial clefts; the table depicts comparative data using fixed and random effects model.
| Sub group | Sample size (n) | No of studies included | Random effect model | P value | Fixed effect model | P value |
|---|---|---|---|---|---|---|
| Overall prevalence | 410,067 | 11 | 1.26 (1.07 to 1.45) | 0.92 (0.92 to. 93) | ||
| Region wise prevalence | 10 | |||||
| North | 13,932 | 2 | 0.85 (0.23 to 1.93) | P <0.00001* | 0.87 (0.86 to 0.88) | P<0.00001* |
| South | 159,891 | 3 | 1.10 (0.33 to 1.87) | 0.77 (0.76 to 0.79) | ||
| East | 126,266 | 1 | 0.70 (0.67 to 0.73) | 0.70 (0.67 to 0.73) | ||
| West | 15,368 | 4 | 1.78 (1.5 to 2.05) | 0.99 (0.98 to 1) | ||
| Time trends | 11 | |||||
| Before 1995 | 148,766 | 5 | 1 (0.55 to 1.44) | P = 0.07 | 0.5 (0.49 to 0.52) | P<0.00001 * |
| After 1995 | 261,301 | 6 | 1.43 (1.31 to 1.55) | 1 (1 to 1.01) | ||
| Gender | 267,806 | 2 | ||||
| Male | 0.60 (0.02 to 1.18) | P = 0.87 | 0.71 (0.70 to 0.73) | P<0.00001 * | ||
| Female | 0.53 (0.02 to 1.09) | 0.81 (0.80 to 0.82) |
* Statistically significant