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. 2015 May 6;2015:328078. doi: 10.1155/2015/328078

Table 1.

Demographic characteristics of the SLE patients (N = 393) according to the anti-dsDNA status.

  Anti-dsDNA +
N = 245		 Anti-dsDNA ±
N = 52		 Anti-dsDNA −
N = 96		 P
Female – n (%) 230 (93.9) 47 (90.4) 87 (90.6) a, b: P = 0.2; c: P = 0.5
Age (mean ± SD, years) 44.9 ± 13.6 43.8 ± 11.9 45.2 ± 12.2 a, c: P = 0.2;  b: P = 0.8
Disease duration (mean ± SD, months) 12.6 ± 8.8 14.5 ± 9.5 11.9 ± 8.0 a: P = 0.4; b: P = 0.1; c: P = 0.3

a: anti-dsDNA + versus anti-dsDNA ±; b: anti-dsDNA ± versus anti-dsDNA −; c: anti-dsDNA + versus anti-dsDNA −.