Trial-OH cohort | High randomized controlled trial | |
---|---|---|
No. of intubation/no. of observation | 398/703 | 320/776 |
Center effect* | ||
Estimated true inter-hospital variance** | 0.156 | 0.186 |
Median odds ratio*** | 1.48 [1.30–1.72] | 1.51 [1.36–1.68] |
Predicted probability of intubation, mean (min-max) across centers | 0.56 (0.46–0.70) | 0.41 (0.28–0.55) |
p value for center effect | 0.013 | 0.004 |