| Summary of appraised quantitative papers (n = 12) | Number of studies meeting this criteria n = 12 total studies (%) |
| Clearly described: |
|
| Focused question: | 12 (100) |
| Study design | 12 (100) |
| Selection described: | 10 (83%) |
| Low risk of selection bias Low risk: 8 papers | 8 (67%) |
| Representative of group indicated: 6 papers | 6 (50%) |
| Appropriate sample size by Power Statistical Power indicated: 2 papers | 2 (17%) |
| Response rate ≥ 70% More than 70%: 6 papers | 6 (50%) |
| Reliable measurement Reliable:8 papers | 8 (67%) |
| Statistical significance Not assessed in all (12) papers | 0 |
| Confidence intervals Not provided: in all 12 papers | 0 |
| No other confounders Confounders not obvious in all 12 papers | 12 (100%) |
| Relevance to African population Relevant: 9 papers | 9 (75%) |