Characteristics | Index Cases, n = 373 | Controls, n = 250 | p |
---|---|---|---|
Women, n (%) | 327 (87.7) | 211 (84.4) | 0.27 |
Mean age, yrs (SD) | 61.1 (13.0) | 57.5 (13.4) | 0.98 |
No. families with at least 1 autoimmune disease (%) | 121 (32.4) | 49 (19.6) | 0.0006 |
No. first-degree relatives | 823 | 318 | |
Mean no. first-degree relatives (SD) | 6.8 (2.9) | 6.5 (2.5) | 0.18 |
Mean no. offspring (SD) | 1.8 (1.3) | 2.1 (1.1) | 0.10 |
Mean no. siblings (SD) | 3.0 (2.3) | 2.4 (2.1) | 0.08 |
No. first-degree relatives with available medical history (%) | 679 (82.5) | 271 (85.0) | 0.35 |