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Table 2 Social inequality in UADT cancer mortality rate between the lowest and the highest neighborhood income quintile and the proportion of deaths attributable to smoking

From: An observational study to assess changes in social inequality in smoking-attributable upper aero digestive tract cancer mortality among Canadian males between 1986 and 2001

  Social inequality % of smoking-attributable deaths
  Rate ratio (Lowest/Highest) Rate difference (Lowest-Highest) Lowest ǂ Highest ǂ Overall
1986      
Yes* 3.3 29.8 76 62 68
No** 1.7 5.7    
Total 2.7 35.5    
1991      
Yes* 3.0 21.6 74 59 66
No** 1.5 3.9    
Total 2.4 25.5    
1996      
Yes* 3.0 17.7 70 55 61
No** 1.6 4.1    
Total 2.3 21.8    
2001      
Yes* 3.0 16.3 69 49 57
No** 1.3 2.4    
Total 2.1 18.7    
  1. *UADT cancer mortality attributable to smoking, ** not attributable to smoking.
  2. ǂ Neighborhood income quintile divided in lowest = poorest, middle = poorer + middle, and highest = richer + richest.