Characteristics of the study population
| Conscription year | 1968–1975 | 1976–1985 | 1986–1995 | 1996–2005 | All decades |
| N in 2020 | 282 828 | 440 991 | 495 775 | 337 467 | 1 557 061 |
| Age at conscription, mean (SD) | 18.5 (0.65) | 18.3 (0.82) | 18.3 (0.76) | 18.2 (0.58) | 18.3 (0.73) |
| Age in 2020 mean (SD) | 65.9 (1.94) | 57.5 (2.98) | 48.0 (3.00) | 38.3 (2.91) | 51.8 (9.89) |
| Children at home (age in 2018) | |||||
| Child of any age | 43 220 (15.3) | 177 630 (40.3) | 333 582 (67.3) | 212 025 (62.8) | 790 604 (50.8) |
| 0–3 years (%) | 292 (0.1) | 3 151 (0.7) | 38 873 (7.9) | 111 926 (33.2) | 154 242 (9.9) |
| 4–6 years (%) | 457 (0.2) | 5 657 (1.3) | 62 168 (12.5) | 92 332 (27.4) | 160 612 (10.3) |
| 7–10 years (%) | 1 275 (0.5) | 16 576 (3.8) | 124 800 (25.2) | 79 418 (23.5) | 222 069 (14.3) |
| 11–15 years (%) | 3 967 (1.4) | 47 911 (10.9) | 168 507 (34) | 35 318 (10.5) | 255 703 (16.4) |
| 16–17 years (%) | 3 597 (1.3) | 35 946 (8.2) | 68 234 (13.8) | 5 549 (1.6) | 113 326 (7.3) |
| 18–20 years (%) | 4 719 (1.7) | 40 733 (9.2) | 50 320 (10.2) | 2 641 (0.8) | 98 413 (6.3) |
| 20 and older (%) | 34 259 (12.1) | 94 456 (21.4) | 51 782 (10.4) | 15 983 (4.7) | 196 480 (12.6) |
| Hospitalisations due to COVID-19 | |||||
| N, March 2020–September 2021 (%) | 2 261 (0.80) | 3 179 (0.72) | 2 455 (0.50) | 760 (0.23) | 8 655 (0.56) |
| With children at home (%) | 426 (18.8) | 1 318 (41.5) | 1 616 (65.8) | 463 (61) | 3 823 (44.2) |
| PCR-confirmed infection with SARS-CoV-2 | |||||
| N, March 2020–September 2021(%) | 18 471 (6.5) | 50 272 (11.4) | 72 878 (14.7) | 47 825 (14.2) | 189 446 (12.2) |
| With children at home (%) | 3 793 (20.5) | 24 279 (48.3) | 54 920 (75.4) | 32 671 (68.3) | 115 663 (61.1) |