Table 2.
Prevalence of secondhand smoke exposure in vehicles among never-smoking adults aged 18 years or older, by voluntary smoke-free vehicle rule status, Indiana, Kentucky, Louisiana and Mississippi, BRFSS 2011
| Voluntary smoke-free vehicle rules†,‡ | |||
|---|---|---|---|
| Overall percentage exposed to SHS in vehicles | Yes Percentage exposed to SHS in vehicles | No Percentage exposed to SHS in vehicles | |
| Total | 12.3 (11.2 to 13.5) | 5.6 (4.6 to 6.5) | 43.5 (39.4 to 47.6)* |
| Sex | |||
| Male | 14.0 (12.0 to 16.0) | 7.1 (5.4 to 8.8) | 43.7 (36.9 to 50.4)* |
| Female | 11.1 (9.8 to 12.4) | 4.5 (3.4 to 5.5) | 43.4 (38.4 to 48.3)* |
| Age (years) | |||
| 18–24 | 23.5(19.1 to 28.0) | 11.7 (7.4 to 16.0) | 49.6 (40.0 to 59.1)* |
| 25–44 | 12.5 (10.5 to 14.5) | 6.5 (4.8 to 8.2) | 43.8(36.3 to 51.3)* |
| 45–64 | 9.6(8.4 to 10.9) | 3.7 (2.9 to 4.5) | 41.4 (35.9 to 46.8)* |
| >65 | 5.2 (4.3 to 6.2) | 2.0 (1.4 to 2.6) | 30.0 (24.3 to 35.7)* |
| Race/ethnicity | |||
| white, Non-Hispanic | 11.3 (10.0 to 12.6) | 4.7 (3.6 to 5.7) | 43.2 (38.3 to 48.1)* |
| black, Non-Hispanic | 15.2 (12.8 to 17.6) | 8.5 (6.3 to 10.7) | 43.3 (35.2 to 51.3)* |
| Hispanic | 17.3(6.7 to 28.0) | 6.0 (0.0 to 12.9) | 64.1 (39.3 to 88.9)* |
| other, Non-Hispanic | 17.0 (2.8 to 31.2) | 10.2 (0.0 to 26.9) | 42.0 (5.7 to 78.3)* |
| Household income | |||
| <$25 000 | 18.6 (15.9 to 21.3) | 9.0 (6.4 to 11.5) | 50.2 (43.2 to 57.2)* |
| $25 000-$49 999 | 11.2 (9.0 to 13.4) | 4.1 (2.7 to 5.6) | 38.6 (30.3 to 47.0)* |
| $50 000-$74 999 | 8.0(5.8 to 10.2) | 3.3 (1.7 to 5.0) | 35.3 (24.6 to 46.4)* |
| >$75 000 | 5.8 (4.1 to 7.5) | 3.1 (1.7 to 4.5) | 33.2 (22.5 to 43.8)* |
| Health insurance status | |||
| Yes | 10.8(9.7 to 12.0) | 4.7 (3.8 to 5.6) | 42.2 (37.7 to 46.6)* |
| No | 19.9(16.2 to 23.5) | 9.8 (6.6 to 13.1) | 47.2 (37.5 to 57.0)* |
| Adult current asthma | |||
| Yes | 19.5(14.5 to 25.4) | 9.5 (5.0 to 14.0) | 56.7 (43.5 to 70.0)* |
| No | 11.7(10.5 to 12.9) | 5.2 (4.3 to 6.2) | 42.1 (37.8 to 46.4)* |
Percentages are weighted.
χ2 p < 0.0001. Those without voluntary smoke-free rules were significantly different from those with voluntary smoke-free rules.
Defined as a response of ‘never allowed in any vehicle’ to the question, “Not counting motorcycles, in the vehicles that you or your family members who live with you own or lease, is smoking....?”
Defined as a response of 1–7 days to the question, “During the past 7 days, on how many days did you ride in a vehicle where someone other than you was smoking?” BRFSS, Behavioral Risk Factor Surveillance System; SHS, secondhand smoke.