Table 4.
Somatic comorbidity among twins with depression and anxiety in the Norwegian twin registry
| Case–control population (N = 6374) | ||||||
|---|---|---|---|---|---|---|
| Depression | Anxiety | |||||
| Cases N (%) | Controls N (%) | OR (95% CI) | Cases N (%) | Controls N (%) | OR (95% CI) | |
| N = 985 | N = 5389 | N = 830 | N = 5544 | |||
| Female | 673 (68.3) | 3008 (55.8) | 1.7 (1.5, 1.9) | 610 (73.5) | 3071 (55.4) | 2.2 (1.9, 2.6) |
| Sleep disorder | 220 (22.3) | 287 (5.3) | 5.1 (4.2, 6.2) | 205 (24.7) | 302 (5.4) | 5.7 (4.7, 6.9) |
| Frequent headache | 179 (18.2) | 534 (9.9) | 2.0 (1.7, 2.4) | 176 (21.2) | 537 (9.7) | 2.5 (2.1, 3.0) |
| Long-lasting muscles pain | 82 (8.3) | 185 (3.4) | 2.5 (1.9, 3.3) | 83 (8.9) | 184 (3.3) | 3.2 (2.5, 4.2) |
| Dyspepsia | 71 (7.2) | 173 (3.2) | 2.2 (1.8, 3.1) | 74 (8.9) | 170 (3.1) | 3.1 (2.3, 4.1) |
| Diabetes | 10 (1) | 38(0.7) | 1.4 (0.7, 2.9) | 10 (1.2) | 38 (0.7) | 1.8 (0.9, 3.6) |
| Irritable bowel syndrome | 77(11.9) | 259 (4.5) | 2.8 (2.1, 3.7) | 95 (11.4) | 2841(4.3) | 2.8 (2.2, 3.7) |
| Depression | 510 (61.4) | 475 (8.6) | 17.0 (14.3, 20.1) | |||
| Anxiety | 510 (51.8) | 320 (5.9) | 17.0 (14.3, 20.1) | |||