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Table 1 Clinical and demographic characterization of the dataset

From: Characterization of the major histocompatibility complex locus association with Behçet’s disease in Iran

Characteristic Total dataset HLA-B allelotyped subset
  Cases Controls Cases Controls
Number 973 825 681 414
Male gender, n/total n (%) 511/973 (52.5) 348/825 (42.2) 480/681 (70.5) 281/414 (67.9)
Age at examination, years, mean ± SD 39.1 ± 10.9 40.5 ± 11.9 39.2 ± 10.6 42.7 ± 11.5
Age at onset, years, mean ± SD 26.0 ± 9.6   26.0 ± 9.5  
Oral aphthosis, n/total n (%) 962/973 (98.9) 0/825 (0.0) 672/681 (98.7) 0/414 (0.0)
Genital aphthosis, n/total n (%) 609/973 (62.6) 0/825 (0.0) 424/681 (62.3) 0/414 (0.0)
Skin lesions, n/total n (%) 539/973 (55.4)   393/681 (57.7)  
Ophthalmologic manifestations, n/total n (%) 583/973 (59.9)   427/681 (62.7)  
Joint manifestations, n/total n (%) 300/973 (30.8)   218/681 (32.0)  
Neurological manifestations, n/total n (%) 61/973 (6.3)   42/681 (6.2)  
Vascular involvement, n/total n (%)) 51/973 (5.2)   43/681 (6.3)  
Gastrointestinal manifestations, n/total n (%) 38/973 (3.9)   22/681 (3.2)  
Pathergy phenomenon, n/total n (%) 441/959 (46.0)   323/669 (48.3)  
Family history of BD, n/total n (%) 85/935 (9.1)   57/651 (8.8)  
  1. n/total n = number of individuals/total number of cases or controls analysed.