Table 3.

Environmental tobacco smoke (ETS) exposure (home and/or work) and respiratory disease (including deaths from lung cancer, larynx or pharynx cancer, and deaths from chronic obstructive pulmonary disease) or lung cancer alone, in whole cohort (n=123 479, 131 cases) and in nested case-control study (n=114 cases, 286 controls)

	Hazard ratios (95% CI)		Odds ratios*(95% CI)
	Respiratory disease	Lung cancer	Respiratory disease	Lung cancer
Exposure to ETS at home and/or at work (yes/no):
Model I†	1.21 (0.82 to 1.78)	1.25 (0.80 to 1.96)	1.64 (0.99 to 2.69)	1.75 (0.96 to 3.18)
Model II‡:
All	1.30 (0.87 to 1.95)	1.34 (0.85 to 2.13)	1.70 (1.02 to 2.82)	1.76 (0.96 to 3.23)
Former smokers	2.32 (1.07 to 5.01)	2.32 (0.94 to 5.71)	3.11 (1.06 to 9.18)	NA
Never smokers	1.02 (0.63 to 1.66)	1.05 (0.60 to 1.82)	1.45 (0.75 to 2.80)	1.42 (0.63 to 3.20)
Men	1.72 (0.81 to 3.66)	1.96 (0.68 to 5.67)	1.79 (0.63 to 5.09)	NA
Women	1.15 (0.71 to 1.86)	1.20 (0.71 to 2.02)	1.46 (0.76 to 2.80)	NA
ETS only at home	1.11 (0.71 to 1.74)	1.03 (0.60 to 1.76)	1.10 (0.60 to 2.02)	0.82 (0.37 to 1.82)
ETS only at work	1.55 (1.03 to 2.32)	1.65 (1.04 to 2.63)	2.05 (1.22 to 3.47)	2.17 (1.16 to 4.08)

^*Computed by conditional logistic regression analysis.

^†Adjusted by sex, age (plus or minus 5 years), smoking (former or never smoker), country, and school years.

^‡Additionally adjusted by energy intake, fruit and vegetables consumption, and physical activity.