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Table 1 Baseline characteristics of SpA patients with and without TB

From: Risk of tuberculosis in patients with spondyloarthritis: data from a centralized electronic database in Hong Kong

  SpA with TB SpA without TB P value Total
Chinese ethnicity 43/43 (100%) 2896/2926 (99.0%) 0.51 2939/2969 (99.0%)
Male sex 36/43 (83.7%) 1993/2926 (68.1%) 0.03 2029/2969 (69.3%)
Age (years) 43.5 ± 16.2 49.9 ± 14.6 0.01 49.8 ± 14.6
Duration of follow up (years) 12.6 ± 5.5 9.2 ± 5.9 < 0.001 9.2 ± 1.2
Radiographic sacroiliitis 34/42 (81.0%) 1906/2784 (68.5%) 0.08 1305/1707 (76.4%)
HLA-B27 status 13/16 (81.3%) 1292/1691 (76.4%) 0.65 1940/2826 (68.6%)
Smoking 19/43 (44.2%) 856/2875 (29.8%) 0.04 875/2918 (30.0%)
Alcohol use 8/43 (18.6%) 232/2875 (8.1%) 0.01 240/2918 (8.1%)
Past history of TB 9/43 (20.9%) 69/2926 (2.4%) < 0.001 78/2969 (2.6%)
psoriasis 6/43 (14.0%) 636/2926 (21.7%) 0.22 642/2969 (21.6%)
IBD 1/43 (2.3%) 46/2926 (1.6%) 0.69 47 (2969) (1.6%)
ReA 0/43 (0.0%) 6/2926 (0.2%) 0.77 6/2969 (0.2%)
Diabetes Mellitus 4/43 (9.3%) 265/2926 (9.1%) 0.96 269/2969 (9.1%)
Chronic kidney disease 4/43 (9.3%) 183/2926 (6.3%) 0.41 187/2969 (6.3%)
Malignancy 4/43 (9.3%) 111/2926 (3.8%) 0.06 115/2969 (3.9%)
Chronic lung disease 8/43 (18.6%) 90/2926 (3.1%) < 0.001 98/2969 (3.3%)
Chronic heart disease 4/43 (9.3%) 190/2926 (6.5%) 0.46 194/2969 (6.5%)
Cerebrovascular accident 4/43 (9.3%) 99/2926 (3.4%) 0.04 103/2969 (3.5%)
Other immunosuppressive states 1/43 (2.3%) 56/2926 (1.9%) 0.85 57/2969 (1.9%)
  1. SpA Spondyloarthritis; TB Tuberculosis; IBD Inflammatory bowel disease; ReA Reactive arthritis