Table 1. Summary of the critical appraisal of studies included in the review.
| Studies (n = 79) | ||
|---|---|---|
| n (%) | ||
| Study design | Cross-sectional | 71 (90%) |
| Longitudinal | 8 (10%) | |
| Sampling technique | Probabilistic | 28 (35%) |
| No probabilistic | 51 (65%) | |
| Q. Measurement (Risk of bias) | Low risk | 15 (19%) |
| Significant risk | 57 (72%) | |
| Insufficient information | 7 (9%) | |
| Temporal framework | Well defined | 34 (43%) |
| Lifetime or undefined | 45 (57%) | |
| Response rate | Reported | 19 (24%); IQR: 25.70%– 76%; M: 45.04%. |
| Not reported | 60 (76%) |
“IQR” = Interquartile range, “M” = Median.