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Recommendations by Cochrane Review Groups for using quality assessments of individual studies in reviews. Values are numbers (percentages)
| Approach recommended | All (n = 50) | Components (n = 41) | Scales (n = 9) |
| Analytical approach | 28 (56) | 20 (49) | 8 (89) |
| Descriptive approach | 1 (2) | 1 (2) | 0 (0) |
| No information | 21 (42) | 20 (49) | 1 (11) |
