Table 1.
Strength of documentary evidence |
||||
Type of study | Number of studies (n(%)) | Good | Fair | Poor |
Situation | 256 (62%) | 137 | 56 | 63 |
Intervention | 103 (25%) | 54 | 30 | 19 |
Situation+intervention | 54 (13%) | 23 | 20 | 11 |
Total | 413 (100%) | 214 (52%) | 106 (26%) | 93 (23%) |
Source: Quality Assurance Project (QAP, 2008).
Note: One study on methodology was excluded.