Table 2. Sample characteristics.
Measures are presented separately for the full sample, and the subsample that have been genotyped–these are the participants used in the Polygenic Risk Score analysis. All controls are censored at age 46, so case status denotes onset before this age, and age at onset is within individuals who have onset before this age.
| Measure | Full Sample | Genotyped Subsample |
|---|---|---|
| Sample Size | 8174 | 5762 |
| Female (%) | 3919 (47.9%) | 2902 (50.4%) |
| Number depressed (%) | 1499 (18.3%) | 1067 (18.5%) |
| Number (%) depression cases Female | 984 (65.6%) | 736 (69%) |
| Average depression age at onset (SD) | 34.4 (6.3) | 34.4 (6.36) |
| Average depression age at onset in women (SD) | 33.9 (6.54) | 33.8 (6.62) |
| Number with an autoimmune disorder (%) | 315 (3.85%) | 226 (3.92%) |
| Number (%) autoimmune disorder cases female | 175 (55.6%) | 131 (58%) |
| Average autoimmune disorder age at onset (SD) | 33.2 (10.9) | 33.5 (11) |
| Average autoimmune disorder age at onset in women (SD) | 34.1 (10.4) | 34.4 (10) |