Table 1. Demographic characteristics of the patients with SLE and unaffected controls and clinical characteristics of the patients with SLE.

	Gullah Controls (n = 59)	Gullah Patients with SLE (n = 59)
Age, mean ± SD (years)	39.86+11.57	39.88±11.63
Disease duration, mean ± SD (years)	n/a	7.4±6.7
% of patients with ACR criteria for renal disorder	n/a	55.9
% of patients with damage (SDI >1)	n/a	50.1
% with ESRD	0.0	13.6
% with ANA positive (>1∶40)	30.5	94.9
% with dsDNA positive	0.0	30.5
% with anti-telomere positive	1.7	45.8

For the 29 patients with 2 visits, the age used is from their baseline visit indicated above.