Table 6.

Independent predictors of conclusiveness for reviews that used Grades of Recommendation, Assessment, Development and Evaluation

			95% CI for OR
Variables	OR	Significance	Lower	Upper
Quality of evidence for the primary outcome	2.03	0.011	1.18	3.52
Total number of studies in the review	1.05	0.005	1.01	1.09
Number of outcomes assigned a GRADE rating	1.21	0.062	0.99	1.47

Variables removed from model: secondary outcome quality of evidence and total number of participants.

CI, confidence interval; GRADE, Grades of Recommendation, Assessment, Development and Evaluation; OR, odds ratio.