Table 6.

ORs and 95% CIs for cumulative residential and occupational exposure to ETS among nonsmokers

ETS exposureMales
Females
Cases/controlsOR (95% CI)Cases/controlsOR (95% CI)
Childhood residential*
    No exposure28/1241.049/491.0
    <18 y21/741.2 (0.6-2.3)42/710.7 (0.3-1.4)
    18 y6/260.9 (0.3-2.6)14/170.6 (0.2-1.7)
P = 0.92P = 0.24
Adult residential
    No exposure24/1061.034/381.0
    >0 to ≤2613/521.1 (0.5-2.4)21/222.2 (0.8-6.2)
    >26 to ≤547/370.8 (0.3-2.2)28/351.9 (0.7-4.8)
    >5410/311.3 (0.5-3.2)23/440.8 (0.3-1.9)
P = 0.74P = 0.27
Occupational
    No exposure13/311.062/971.0
    >0 to ≤13514/570.6 (0.2-1.6)18/221.7 (0.7-4.0)
    >135 to ≤2409/670.2 (0.1-0.7)13/131.7 (0.6-4.4)
    >24019/720.6 (0.2-1.4)13/83.3 (1.1-9.5)
P = 0.58P = 0.03
  • NOTE: Adjusted for age, hospital region, fruit/vegetable consumption, and high-risk occupation.

  • * Sum of the years spent at each childhood residence (up to age 18 years) multiplied by the number of smokers in each residence and categorized above and below the median value in controls.

  • Sum of the years spent at each adult residence multiplied by the number of smokers in each residence and categorized according to tertiles in controls.

  • Sum of the years spent at each job multiplied by the number of smokers at each job and categorized according to tertiles in controls.