Table 1.
Baseline characteristics of the individuals with relatives affected by SS and the general populationa
| Variable | Women | Men | ||||
|---|---|---|---|---|---|---|
| At least 1 affected relative | General population | P | At least 1 affected relative | General population | P | |
| (n = 10,416) | (n = 11,926,513) | (n = 11,569) | (n = 11,732,064) | |||
| Age, mean ± SD years | 33.2 ± 16.9 | 37.9 ± 20.4 | <0.001 | 33.4 ± 16.3 | 37.1 ± 20.6 | <0.001 |
| Patients with SS | 95 (0.91) | 11,462 (0.10) | <0.001 | 10 (0.09) | 1,292 (0.01) | <0.001 |
| Place of residence | <0.001 | <0.001 | ||||
| Urban | 6,901 (66.25) | 7,197,968 (60.35) | 7,166 (61.94) | 6,737,087 (57.42) | ||
| Suburban | 2,664 (25.58) | 3,209,020 (26.91) | 3,051 (26.37) | 3,372,637 (28.75) | ||
| Rural | 707 (6.79) | 1,087,991 (9.12) | 793 (6.85) | 1,098,656 (9.36) | ||
| Unknown | 144 (1.38) | 431,534 (3.62) | 559 (4.83) | 523,684 (4.46) | ||
| Income level | <0.001 | <0.001 | ||||
| Quintile 1 | 1,499 (14.39) | 1,960,003 (16.43) | 1,690 (14.61) | 2,117,136 (18.05) | ||
| Quintile 2 | 1,549 (14.87) | 1,839,576 (15.42) | 1,389 (12.01) | 1,495,341 (12.75) | ||
| Quintile 3 | 2,138 (20.53) | 3,161,293 (26.51) | 2,398 (20.73) | 3,135,633 (26.73) | ||
| Quintile 4 | 2,196 (21.08) | 2,252,173 (18.88) | 2,534 (29.86) | 2,294,886 (19.56) | ||
| Quintile 5 | 2,875 (27.60) | 2,274,656 (19.07) | 2,986 (25.81) | 2,163,222 (18.44) | ||
| Unknown | 159 (1.53) | 438,812 (3.68) | 572 (4.94) | 525,846 (4.48) | ||
| Occupation | <0.001 | <0.001 | ||||
| Dependent of insured individual | 3,835 (36.82) | 4,924,319 (41.29) | 3,952 (34.16) | 4,285,015 (36.52) | ||
| Civil servant, teacher, military personnel, and veterans | 706 (6.78) | 401,734 (3.37) | 660 (5.70) | 582,717 (4.97) | ||
| Non–manual labor worker and professional | 3,469 (33.30) | 3,031,660 (25.42) | 4,323 (37.37) | 3,325,548 (28.35) | ||
| Manual labor worker | 1,534 (14.73) | 2,612,534 (21.91) | 1,498 (12.95) | 2,272,550 (19.37) | ||
| Other | 872 (8.37) | 956,266 (8.02) | 1,136 (9.82) | 12,66234 (10.79) | ||
a
Except where indicated otherwise, values are the number (%). SS = Sjögren's syndrome.