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Table 4 Separate and joint effects for occupational dust exposure and atopy or smoking; odds ratios (OR) and 95% confidence interval (95% C.I.) – Current asthma, a separate and joint presence of organic dust exposure and atopy

From: Interaction of atopy and smoking on respiratory effects of occupational dust exposure: a general population-based study

   Atopics Non-atopics
   OR (95% C.I.) OR (95% C.I.)
Organic dust: yes 4.90 (2.02;11.87)*†# 0.86 (0.37;2.14)
  no 0.71 (0.28;1.82) 1.00 (---)
  1. * p < 0.001 compared to non-exposed non-atopics † p < 0.01 compared to non-exposed atopics # p < 0.01 compared to exposed non-atopics