Table 1.
Participant Characteristics
| All participants born in Sweden between 1920 and 1949 (N = 2 955 796) | |||
|---|---|---|---|
| Population at-risk (N = 2 940 971, 99.5%) N (%) | Cases (N = 14 825, 0.5%), N (%) | χ2 test | |
| Sex | |||
| Men | 1 460 201 (49.65) | 5974 (40.30) | χ2(1) = 516.23, P ≤. 001 |
| Women | 1 480 770 (50.35) | 8851 (59.70) | |
| Region of origin | |||
| Sweden | 2 606 243 (88.62) | 12 539 (84.58) | χ2(10) = 318.59, P ≤ .001 |
| Africa | 5034 (0.17) | 38 (0.26) | |
| Asia | 17 518 (0.60) | 82 (0.55) | |
| North America | 5538 (0.19) | 42 (0.28) | |
| Europe | 160 493 (5.46) | 1099 (7.41) | |
| South America | 8074 (0.27) | 42 (0.28) | |
| Oceania | 225 (0.01) | 1 (0.01) | |
| Other | 46 (0.00) | 0 (0.00) | |
| Middle East | 10 063 (0.34) | 34 (0.23) | |
| Russia-Baltic | 13 344 (0.45) | 139 (0.94) | |
| Finnish | 114 393 (3.89) | 809 (5.46) | |
| Birth period | |||
| 1920–1924 | 504 290 (17.15) | 5027 (33.91) | χ2(5) = 5000.00, P ≤ .001 |
| 1925–1929 | 432 028 (14.69) | 3128 (21.10) | |
| 1930–1934 | 405 822 (13.80) | 2370 (15.99) | |
| 1934–August 1939 | 404 116 (13.74) | 1723 (11.62) | |
| WWII–May 1946 | 752, 654 (25.59) | 2022 (13.64) | |
| Post–WWII–1949 | 442, 061 (15.03) | 555 (3.74) | |
| Disposable income at age 60 | |||
| Lowest quarter | 646 200 (21.97) | 5724 (38.61) | χ2(3) = 4600.00, P ≤ .001 |
| Second quarter | 639 058 (21.73) | 4744 (32.00) | |
| Third quarter | 818 099 (27.82) | 2722 (18.36) | |
| Highest quarter | 837 614 (28.48) | 1635 (11.03) | |
| Child with a psychotic disorder | |||
| Yes | 69 142 (2.35) | 773 (5.21) | χ2(1) = 523.61, P ≤ .001 |
| No | 2 871 829 (97.65) | 14 052 (94.79) | |
| Death of child under 12 months | |||
| No children died aged under 12 months | 2 473 160 (84.09) | 9771 (65.91) | χ2(2) = 4000.00, P ≤ .001 |
| Had no children aged under 12 months | 433 838 (14.75) | 4937 (33.30) | |
| 1 or more children died | 33 973 (1.16) | 117 (0.79) | |
| Death of child aged 12 months–18 years | |||
| No children died aged 12 months–18 years | 2 482 177 (84.40) | 9786 (66.01) | χ2(2) = 4000.00, P ≤ .001 |
| Had no children aged 12 months–18 years | 433 838 (14.75) | 4 937 (33.30) | |
| 1 or more children died aged 12 months–18 years | 24 956 (0.85) | 102 (0.69) | |
| Partner death 2 years before date of exit | |||
| Had partner, no partner died | 1 564 799 (53.21) | 3883 (26.19) | χ2(2) = 4400.00, P ≤ .001 |
| Had no partner | 1 303 523 (44.32) | 10 569 (71.29) | |
| 1 or more partners died | 72 649 (2.47) | 373 (2.52) | |
| Sensory impairment | |||
| Visual impairment | 745 076 (25.33) | 2037 (13.74) | χ2(1) = 1000.00, P ≤ .001 |
| No visual impairment | 2 195 895 (74.67) | 12 788 (86.26) | |
| Hearing impairment | 180 543 (6.14) | 500 (3.37) | χ2(1) = 196.30, P ≤ .001 |
| No hearing impairment | 2 760 428 (93.86) | 14 325 (96.63) | |