Table 1.

Summary characteristic of Behçet's patients and normal control subjects in this study

	Case			Control
Analysis	Samples size	Mean age (S.D)	Male/Female	Samples size	Mean age (S.D)	Male/Female
Stage I	147	32.90 ± 7.50	129/18	951	39.77 ± 9.99	712/239
Stage II	330	33.39 ± 7.98	268/62	383	34.61 ± 7.85	301/82
Combined	477	33.07 ± 7.64	397/80	1334	37.07 ± 9.11	1,013/321

SD, standard deviation