Table 5.
Criteriaa | Overall Assessment | Level of Evidence |
---|---|---|
Consistent findings in multiple studies of good methodological quality OR in 1 study of excellent methodological quality | + + + or − − − | Strong |
Consistent findings in multiple studies of fair methodological quality OR in 1 study of good methodological quality | + + or − − | Moderate |
1 study of fair methodological quality | + or − | Limited |
Conflicting findings from multiple studies | +/− | Conflicting |
Only studies of poor methodological quality OR only indeterminate results from multiple studies regardless of methodological quality | ? | Unknown |
Measurement property not assessed | 0 | Not assessed |
Adapted from Uijen et al.70