Table 1 Characteristics of the study population
|  | Total N = 9748 n (%) or mean (SD) | RWD N = 953 (9.8) n (%) or mean (SD) | Non-RWD N = 8795 (90.2) n (%) or mean (SD) | p |
|---|---|---|---|---|
Self-rated health |  |  |  | < 0.001b* |
 Low (%) | 2606 (26.7) | 338 (35.5) | 2268 (25.8) |  |
 High (%) | 6386 (65.5) | 494 (51.8) | 5892 (67.0) |  |
 Missing (%) | 756 (7.8) | 121 (12.7) | 635 (7.2) |  |
Gender | Â | Â | Â | 0.055 b |
 Female (%) | 4973 (51.0) | 458 (48.1) | 4515 (51.3) |  |
 Male (%) | 4775 (49.0) | 495 (51.9) | 4280 (48.7) |  |
 Alder, mean (SD) | 15.8 (0.4) | 16.0 (0.5) | 15.8 (0.4) | < 0.001c* |
Self-assessed SES |  |  |  | < 0.001b* |
 Low (%) | 233 (2.4) | 49 (5.1) | 184 (2.1) |  |
 Medium (%) | 5411 (55.5) | 552 (57.9) | 4859 (55.3) |  |
 High (%) | 3529 (36.2) | 248 (26.0) | 3281 (37.3) |  |
 Missing (%) | 575 (5.9) | 104 (10.9) | 471 (5.4) |  |
Negative childhood events |  |  |  | < 0.001b* |
 0 events (%) | 940 (9.6) | 84 (8.8) | 856 (9.7) |  |
 1–3 events (%) | 5769 (59.2) | 433 (45.4) | 5336 (60.7) |  |
 4–7 events (%) | 1616 (16.6) | 181 (19.0) | 1435 (16.3) |  |
 8–11 events (%) | 234 (2.4) | 56 (5.9) | 178 (2.0) |  |
 Missing (%) | 1189 (12.2) | 199 (20.9) | 990 (11.3) |  |
Loneliness |  |  |  | < 0.001b* |
 Not lonely (%) | 7358 (75.5) | 609 (63.9) | 6749 (76.7) |  |
 Lonely (%) | 2379 (24.4) | 341 (35.8) | 2038 (23.2) |  |
 Missing (%) | 11 (0.1) | 3 (0.3) | 8 (0.1) |  |
 Perceived stress a, mean (SD) | 14.3 (6.4) | 16.5 (6.1) | 14.1 (6.4) | < 0.001c* |