Table 2 Quality assessment of the 11 studies included in the systematic review
From: Systematic review of cholangiocarcinoma in Africa: epidemiology, management, and clinical outcomes
Quality variable | Quality variable categories | Number of studies (%) |
|---|---|---|
External validity | Non-probability | 11/11 (100%) |
Probability | 0 | |
Response rate or proportion of patients managed for CCA | Above 80% | 11/11 (100%) |
Between 60 and 80% | 0 | |
Not reported | 0 | |
Validity of measurement methods and bias in the measurement of cholangiocarcinoma | Histology | 7/11 (63.6%)) |
Enhanced CT and/or MRCP | 1 | |
Not reported | 3 | |
Control for important confounders | Yes | 5/11 (45.6%) |
Not reported | 6 | |
Final mean % score (mean across the items) | Â | 77.3% |