Table 2. Factors predicting the time to publication of Cochrane reviews.

Factor	Univariate Hazard Ratio* (95% CI)	p-value	Multivariate Hazard Ratio* (95% CI)	p-value
Language inclusion (including all vs. including mixed languages and not reported)	1.27 (1.00, 1.61)	0.04	1.31 (0.69, 2.50)	0.42
Language inclusion (not reported vs. reported)	0.78 (0.62, 0.98)	0.03	1.00 (0.52, 1.91)	0.10
Review has two published protocols vs. one published protocol	0.27 (0.10, 0.72)	0.01	0.33 (0.12, 0.90)	0.03
Number of primary outcomes reported in the protocol	1.05 (0.77, 1.44)	0.00	1.02 (0.98, 1.05)	0.23
Number of authors on the protocol	0.90 (0.84, 0.98)	0.01	0.94 (0.86, 1.03)	0.17
Review subsequently being updated	1.87 (1.47, 2.35)	<0.001	1.78 (1.39, 2.33)	<0.0001

Note: ^* Hazard ratios indicate the relative hazard to the time to publication. Numbers above 1 indicate an decreased time to publication, numbers below 1 indicate an increased time to publication.

Abbreviation: CI confidence interval.