Table S1.
Comparison of the complete-case and imputed dataset, the Norwegian Women and Cancer study
| Characteristics | Missing n (%) | Complete-case mean (SD), or % | Multiply imputed mean (SD), or % | |
|---|---|---|---|---|
| County of residence | 0 (0) | |||
| Low incidence (%) | 12 | 12 | ||
| Mid-low incidence (%) | 36 | 36 | ||
| Mid-high incidence (%) | 39 | 39 | ||
| High incidence (%) | 14 | 14 | ||
| Age at baseline (SD) | 0 (0) | 52.1 (6.7) | 52.1 (6.7) | |
| Physical activity (SD) | 9,214 (9.5) | 5.6 (1.8) | 5.5 (1.8) | |
| Height (SD) | 561 (0.6) | 166.1 (5.7) | 166.1 (5.7) | |
| Body mass index (SD) | 2,187 (2.3) | 24.8 (4.0) | 24.8 (4.0) | |
| Duration of education (SD) | 5,601 (5.8) | 12.1 (3.5) | 12.0 (3.5) | |
| Alcohol intake (SD) | 1,958 (2.0) | 3.6 (4.5) | 3.5 (4.5) | |
| Smoking status (%) | 1,869 (1.9) | |||
| Never (%) | 37 | 37 | ||
| Ex (%) | 33 | 33 | ||
| Current (%) | 30 | 30 | ||
| Pack years (SD) | 6 (0.01) | 6.3 (8.5) | 6.3 (8.5) | |
| Annual household income | 7,054 (7.3) | |||
| Low (%) | 39 | 39 | ||
| Medium (%) | 47 | 47 | ||
| High (%) | 14 | 14 | ||
| Hormone replacement therapy use | 2,793 (2.9) | |||
| Never (%) | 66 | 66 | ||
| Ever (%) | 34 | 34 | ||
| Oral contraceptive use | 3,695 (3.8) | |||
| Never (%) | 54 | 53 | ||
| Ever (%) | 46 | 47 |
Abbreviation: SD, standard deviation.