Sensitivity analysis for missing observations
| Missing values | Subcategory | Cases (%) | Controls (%) | Adjusted OR (95% CI) |
|---|---|---|---|---|
| Socioeconomic group | ||||
| Missing SEP values recoded to ‘Managerial/Professional’ (best case) | Managerial | 485 (42.4) | 870 (38.6) | 1.0 |
| Intermediate | 244 (21.3) | 482 (21.4) | 1.01 (0.83 to 1.23) | |
| Routine/manual | 273 (23.9) | 595 (26.4) | 0.99 (0.82 to 1.21) | |
| Unemployed | 142 (12.4) | 309 (13.7) | 1.02 (0.79 to 1.32) | |
| Missing SEP values recoded to ‘unemployed’ (worst case) | Managerial | 292 (25.5) | 567 (25.1) | 1.0 |
| Intermediate | 244 (21.3) | 482 (21.37) | 1.17 (0.94 to 1.46) | |
| Routine/manual | 273 (23.9) | 595 (26.4) | 1.17 (0.94 to 1.46) | |
| Unemployed | 335 (29.3) | 612 (27.1) | 1.38 (1.11 to 1.72) | |