. Author manuscript; available in PMC: 2019 Jul 29.

Published in final edited form as: Cancer Epidemiol. 2018 Nov 13;58:25–32. doi: 10.1016/j.canep.2018.10.006

Table 4.

Joint effects of alcohol and tobacco consumption combined in International Lung Cancer Consortium and Synergy Consortium Study population. Effect estimates from a fixed effects model in a single combined population.

Odds ratios for smoking and alcohol Categories
Drinking and smoking categories	OR¹	95% CI
0 < 20g Alc per day, 0 pack-years	1.00	REF
0 < 20 g Alc per day, 0 < 10 pack-years	1.31	1.16–1.48
0 < 20g Alc per day, 10+ pack-years	7.74	7.14–8.39
0 g Alc per day, 0 pack-years	1.64	1.48–1.82
0 g Alc per day, 0 < 10 pack-years	1.85	1.54–2.23
0 g Alc per day, 10+ pack-years	9.81	8.92–10.80
20 + g Alc per day, 0 pack-years	0.86	0.72–1.03
20 + g Alc per day, 0 < 10 pack-years	1.57	1.32–1.87
20 + g Alc per day, 10+ pack-years	11.23	10.29–12.26

Controlling for sex, age, pack-years, education, ethnicity and study.