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. 2015 Jun 26;67(7):1904–1912. doi: 10.1002/art.39127

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.