| Data set | Exposure of interest | Published odds ratio (95% confidence interval) | Population data odds ratio (95% confidence interval) |
| Diabetes | Caesarean | 1.81 (1.07, 3.04) | 2.12 (1.53, 2.95) |
| Amniocentesis | 3.85 (1.34, 11.04) | 3.38 (2.09, 5.47) | |
| Stroke | Hypertension | 3.807 (2.114, 6.856) | 5.645 (5.639, 5.650) |
| Diabetes | 3.473 (1.757, 6.866) | 12.212 (12.200, 12.224) | |
| Smoking | 2.242 (1.255, 4.005) | 5.701 (5.696, 5.707) |