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Table 4 Relative odds of dying from respiratory diseases by frequency and duration of smoking

From: A retrospective analysis of the association between tobacco smoking and deaths from respiratory and cardiovascular diseases in the Kassena-Nankana districts of Northern Ghana

Variable Unadjusted P-value # Adjusted * P-value #
OR (95% CI)   OR (95% CI)  
Frequency of smoking     
Chain/hourly smoking 3.19 (2.2-4.7)   2.97 (1.9-4.6)  
Daily smoking 2.18 (1.7-2.8) <0.001 2.06 (1.5-2.8) <0.001
Occasional smoking 1.79 (0.9-3.7)   1.67 (0.8-3.5)  
Non-smokers 1   1  
Duration of smoking     
1-5 years 2.13 (1.6-2.8)   2.13 (1.5-2.9)  
6-15 years 2.12 (1.1-4.1) <0.001 1.87 (0.9-3.7) <0.001
>15 years 2.54 (1.9-3.4)   2.32 (1.6-3.2)  
Non-smokers 1   1  
  1. #Overall p-value; *Adjusted for age, sex, place of residence and wealth index in separate models.