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Table 1 Number of participants, age and smoking habits among men and women (18-67 years) in three exposure groups related to an explosion causing environmental pollution

From: Can air pollution affect tear film stability? a cross-sectional study in the aftermath of an explosion accident

  Exposure group* Men Women
Number of participants    
  UI 83 66
  EI 67 77
  EW 184 42
  Total 334 185
Age-mean (SD)    
  UI 42 (12) 46 (13)
  EI 48 (17) 44 (14)
  EW 44 (12) 43 (11)
  Total 44 (13) 43 (13)
Present smokers (%)    
  UI 28 18
  EI 31 34
  EW 36 34
  Total 32 25
  1. *UI = Unexposed inhabitants far from the explosion area
  2. *EI = Exposed inhabitants near the explosion area
  3. *EW = Exposed workers at the explosion area