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Table 3 Weighted age and education adjusted mortality rate per 100 000 person years and mortality rate ratio by smoking status for those aged 30+, Health Interview Survey 1997 and 2001 and follow-up until respectively 31/12/2007 and 31/12/2010, Belgium

From: The effect of smoking on the duration of life with and without disability, Belgium 1997–2011

  Observed deaths Observed person years Mortality rate Mortality rate ratio
Males     
Never smoker 188 19618.47 1337.87 1
    (1112.97; 1562.77)*  
Ex-smoker 541 23129.05 1736.69 1.50
    (1562.34; 1911.03) (1.22; 1.84)
Light smoker 277 13791.72 2509.18 1.95
    (2073.85; 2944.51) (1.52; 1.84)
Heavy smoker 120 8784.79 3999.89 2.77
    (2892.02; 5107.76) (2.00; 3.84)
Females     
Never smoker 532 36882.12 871.25 1
    (786.18; 956.32)  
Ex-smoker 212 17891.89 1076.93 1.09
    (917.06; 1236.80) (0.91; 1.30)
Light smoker 73 11000.82 1580.24 1.41
    (1091.34; 2069.14) (0.98; 2.02)
Heavy smoker 54 6062.29 2453.82 2.67
    (886.06; 4021.57) (1.34; 5.33)
  1. *: 95% Confidence Interval.