Table. Characteristics of the Suicide Cases and the General Population Subcohort, Denmark, January 1, 1995.
| Variable | Men | Women | ||
|---|---|---|---|---|
| Suicide Cases (n = 10 152) | Comparison Subcohort (n = 130 591) | Suicide Cases (n = 3951) | Comparison Subcohort (n = 134 592) | |
| Age, mean (SD), y | 43.5 (18.8) | 37.4 (21.8) | 47.6 (18.8) | 39.9 (23.4) |
| Marital status, % | ||||
| Married or registered partner | 4000 (39.4) | 53 640 (41.1) | 1665 (42.1) | 53 856 (40.0) |
| Divorced | 1225 (12.1) | 8228 (6.3) | 682 (17.3) | 10 266 (7.6) |
| Single | 4395 (43.3) | 63 962 (49.0) | 1103 (27.9) | 55 238 (41.0) |
| Widow | 467 (4.6) | 3802 (2.9) | 473 (12.0) | 14 327 (10.6) |
| Unknowna | 65 (0.6) | (959) 0.7 | 28 (0.7) | 905 (0.7) |
| Immigrant, % | 312 (3.1) | 5698 (4.4) | 167 (4.2) | 5566 (4.1) |
| Income quartile, % | ||||
| <1 | 1766 (17.4) | 23 895 (18.3) | 976 (24.7) | 30 870 (22.9) |
| 1 to <2 | 2516 (24.8) | 19 980 (15.3) | 1364 (34.5) | 34 114 (25.3) |
| 2 to <3 | 2387 (23.5) | 23 962 (18.3) | 962 (24.3) | 31 841 (23.7) |
| 3≥ | 2964 (29.2) | 41 069 (31.4) | 481 (12.2) | 16 217 (12.0) |
| Unknowna | 519 (5.1) | 21 685 (16.6) | 168 (4.3) | 21 550 (16.0) |
a
Given the coverage of the Danish national registries, missing data were scarce. The few predictors with minimal missing data were imputed using the default approaches of rpart (surrogate variables) and randomForests (modal value).