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Table 6 Association between allergy, smoking and other exposures and GPA

From: Association between environmental exposures and granulomatosis with polyangiitis in Canterbury, New Zealand

  GPA Controls OR (95 % CI) p value
Any allergy 41 (83.7 %) 152 (77.6 %) 1.58 (0.65–3.85)  
Skin reactions 7 (14.3 %) 42 (21.4 %) 0.54 (0.20–1.41) 0.21
Allergic rhinitis 23 (46.9 %) 84 (42.9 %) 1.22 (0.61–2.45) 0.57
Asthma 24 (49.0 %) 109 (55.6 %) 0.73 (0.37–1.45) 0.37
Drug allergy 10 (20.4 %) 53 (27.0 %) 0.62 (0.26–1.47) 0.28
Insect allergy 7 (14.3 %) 15 (7.7 %) 2.38 (0.80–7.09) 0.15
Plant allergy 12 (24.5 %) 49 (25.0 %) 0.96 (0.42–2.23) 0.94
Food allergy 9 (18.4 %) 26 (13.3 %) 1.66 (0.63–4.37) 0.31
Tuberculosis 1 (2.0 %) 9 (4.6 %) 0.37 (0.04–3.43) 0.38
Hepatitis 4 (8.2 %) 13 (6.6 %) 1.31 (0.36–4.79) 0.68
Blood transfusion 6 (12.2 %) 34 (17.3 %) 0.57 (0.20–1.68) 0.31
Ever smoked 28 (57.1 %) 130 (66.3 %) 0.59 (0.28–1.25) 0.17
Family history of allergy 32 (65.3 %) 126 (64.3 %) 1.05 (0.52–2.14) 0.89
Vaccination 12 (24.5 %) 77 (39.3 %) 0.41 (0.19–0.92) 0.031
  1. Data presented as number (%)
  2. CI confidence interval, GPA granulomatosis with polyangiitis, OR odds ratio