Table 1. Odds ratios, 95% confidence intervals and P-values for logistic regression models.
Dependent variable | Independent variable | OR (95% CI) | P-value |
---|---|---|---|
EOI | Number of previous studies | 1.98 (1.57–2.51) | <0.001 |
Number of individual RCTs | 2.51 (1.71–3.78) | <0.001 | |
Number of cluster RCTs | 2.16 (1.57–2.99) | <0.001 | |
Practice size (1,000's) | 1.03 (0.99–1.08) | 0.160 | |
Randomised | Number of previous studies | 1.91 (1.52–2.42) | <0.001 |
Number of individual RCTs | 2.42 (1.65–3.61) | <0.001 | |
Number of cluster RCTs | 2.07 (1.51–2.86) | <0.001 | |
Practice size (1,000's) | 1.04 (0.99–1.08) | 0.137 |
Abbreviations: CI, confidence interval; EOI, expression of interest; OR, odds ratio; RCT, randomised controlled trial.