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Table 4 Dust exposure and risk of GPA

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

  GPA Controls OR (95 % CI) p value
Any dust 27 (55.1 %) 69 (35.2 %) 3.6 (1.6–8.3) 0.003
Grain dust 23 (46.9 %) 51 (26 %) 4.2 (1.8–9.9) 0.001
Silica dust 16 (32.7 %) 36 (18.4 %) 3.1 (1.3–7.4) 0.013
Chemical sprays 6 (12.2 %) 9 (4.6 %) 5.3 (1.3–21.7) 0.02
Petrol/diesel fumes 7 (14.3 %) 11 (5.6 %) 3.8 (1.1–13.1) 0.03
  1. CI confidence interval, GPA granulomatosis with polyangiitis, OR odds ratio