Table 2. Hazard ratios, 95% confidence intervals and P-values for Cox proportional hazard models.
Dependent variable | Independent variable | HR (95% CI) | P-value |
---|---|---|---|
EOI | Number of RCTs | 1.83 (1.58–2.12) | <0.001 |
Number of individual RCTs | 2.36 (1.86–2.99) | <0.001 | |
Number of cluster RCTs | 1.91 (1.52–2.40) | <0.001 | |
Practice size (1,000's) | 1.03 (0.99–1.07) | 0.122 | |
Randomised | Number of RCTs | 1.81 (1.55–2.11) | <0.001 |
Number of individual RCTs | 2.36 (1.85–3.02) | <0.001 | |
Number of cluster RCTs | 1.83 (1.45–2.32) | <0.001 | |
Practice size (1,000's) | 1.04 (0.10–1.08) | 0.054 |
Abbreviations: CI, confidence interval; EOI, expression of interest; OR, odds ratio; RCT, randomised controlled trial.