Table 2 Assessment of quality of studies providing prevalence rates among blood donors and pregnant women
From: Systematic review and meta-analysis of HIV, HBV and HCV infection prevalence in Sudan
| Aspect | Score | Description |
|---|---|---|
| Coverage | 1 | Single centre/local |
| 2 | Multi-centre/local | |
| 3 | Multi-centre/national | |
| Sample sizea | 0 | Less than 150 participants |
| 1 | More than 150 and less than 1000 participants | |
| 2 | More than 1000 participants |