Table 2.
Prevalence and ORs With Corresponding 95% CIs for Sex, Birth Year, and Birth Order Among Individuals Diagnosed With Schizophrenia or Depression in Sweden
| Sample Size | Schizophrenia | Depression | |||
|---|---|---|---|---|---|
| Prevalence, % | OR (95% CI) | Prevalence, % | OR (95% CI) | ||
| Total | 2361585 | 0.21 | — | 1.75 | — |
| Sex | |||||
| Male | 1214116 | 0.27 | Reference | 1.28 | Reference |
| Female | 1147469 | 0.14 | 0.52 (0.49; 0.56) | 2.25 | 1.77 (1.74; 1.81) |
| Birth order | |||||
| 1 | 999709 | 0.20 | Reference | 1.71 | Reference |
| 2 | 859499 | 0.20 | 0.98 (0.92; 1.05) | 1.69 | 0.98 (0.96; 1.01) |
| 3 | 353508 | 0.20 | 0.96 (0.88; 1.04) | 1.85 | 1.08 (1.05; 1.11) |
| 4+ | 148869 | 0.32 | 1.57 (1.42; 1.73) | 2.16 | 1.26 (1.22; 1.31) |
| Birth year | |||||
| 1967–1969 | 329833 | 0.41 | 7.54 (6.65; 8.55) | 1.65 | 0.98 (0.95; 1.02) |
| 1970–1974 | 535983 | 0.28 | 5.22 (4.60; 5.91) | 1.69 | 1.01 (0.98; 1.04) |
| 1975–1979 | 479856 | 0.22 | 4.01 (3.52; 4.56) | 1.80 | 1.08 (1.04; 1.11) |
| 1980–1984 | 475302 | 0.15 | 2.84 (2.48; 3.25) | 1.94 | 1.16 (1.13; 1.19) |
| 1985–1989 | 540611 | 0.05 | Reference | 1.68 | Reference |
Note: OR, odds ratio; CI, confidence interval.