All smokers (n=203) | Current smokers (n=92) | Ex-smokers (n=111) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Definition | Factor | χ2 | p value | OR | 95% CI | χ2 | p value | OR | 95% CI | χ2 | p value | OR | 95% CI |
CC=lifelong cigarette consumption (pack years); duration=duration of smoking period (years); OR=odds ratio; CI=confidence interval. | |||||||||||||
*p<0.05, **p<0.01. | |||||||||||||
OR and 95% CI correspond to having genotype D or aging every 10 years. | |||||||||||||
CC ≥60 | Genotype D | 6.21 | 0.01* | 0.44 | 0.23 to 0.84 | 3.71 | 0.05 | 0.42 | 0.18 to 1.02 | 3.37 | 0.07 | 0.38 | 0.13 to 1.07 |
Age (10 years) | 2.97 | 0.08 | 1.31 | 0.96 to 1.77 | 1.17 | 0.28 | 1.32 | 0.80 to 2.19 | 2.61 | 0.11 | 1.40 | 0.93 to 2.12 | |
Packs/day ≥1.5 | Genotype D | 7.16 | <0.01** | 0.42 | 0.23 to 0.80 | 8.26 | <0.01** | 0.27 | 0.11 to 0.66 | 0.62 | 0.43 | 0.69 | 0.27 to 1.75 |
Age (10 years) | 5.45 | 0.02* | 0.69 | 0.51 to 0.94 | 3.22 | 0.07 | 0.62 | 0.36 to 1.05 | 1.93 | 0.17 | 0.76 | 0.51 to 1.12 | |
Duration ≥40 | Genotype D | 0.09 | 0.77 | 0.89 | 0.41 to 1.93 | 0.03 | 0.85 | 1.11 | 0.36 to 3.48 | 2.84 | 0.09 | 0.34 | 0.09 to 1.20 |
Age (10 years) | 51.2 | <0.01** | 6.85 | 4.04 to 11.61 | 23.2 | <0.01** | 15.4 | 5.06 to 46.9 | 26.1 | <0.01** | 5.52 | 2.87 to 10.6 |