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Table 3 Effect of the length of the occupation in a job at risk of UIP and the risk of UIP, adjusted for sex, age and smoking

From: Occupational risk factors for idiopathic pulmonary fibrosis in Southern Europe: a case-control study

Exposure OR 95% CI
None 1  
1–9 years 3.32 1.06–10.33
10–19 years 3.41 1.30–8.95
≥ 20 years 5.01 2.55–9.84
  1. Significant risk estimates in italic