. 2014 Jan 16;11:E08. doi: 10.5888/pcd11.130132

Table 1. Characteristics of Respondents to Maine’s Behavioral Risk Factor Surveillance System (BRFSS) Part B Before and After Passage of a Law Prohibiting Smoking in Vehicles, 2007–2010^a .

Characteristic	Before Law (2007)		After Law (2008–2010)^b		Combined 2007–2010
Characteristic	Unweighted Sample (n = 2,648)^c	Weighted %^d	Unweighted Sample (n = 10,813)^c	Weighted %^d	Unweighted Sample (n = 13,461)^c	Weighted %^d
Sex
Male	964	48.2	4,206	48.2	5,170	48.2
Female	1,684	51.8	6,607	51.8	8,291	51.8
Age, y
18–24	76	11.9	295	9.1	371	9.8
25–34	243	13.9	692	14.3	935	14.2
35–44	417	18.2	1,453	19.4	1,870	19.1
45–54	590	20.7	2,321	20.8	2,911	20.8
55–64	606	16.2	2,620	16.9	3,226	16.8
≥65	700	19.0	3,355	19.5	4,055	19.4
Education
Less than high school diploma	189	7.6	696	6.3	885	6.6
High school graduate or GED	804	30.5	3,512	32.6	4,316	32.1
Some college or technical school	684	27.3	2,659	25.1	3,343	25.7
College 4 years or more	968	34.6	3,933	36.0	4,901	35.6
Annual household income, $
<20,000	454	16.3	2,002	16.6	2,456	16.5
20,000–34,999	524	22.2	2,129	20.1	2,653	20.6
35,000–49,999	412	17.8	1,650	17.5	2,062	17.6
50,000–74,999	408	18.3	1,618	18.8	2,026	18.7
≥75,000	519	25.3	2,205	27.0	2,724	26.6
Children in household
Yes	709	35.6	2,743	38.3	3,452	37.6
No	1,936	64.4	8,061	61.7	9,997	62.4
Current smoking status
Current smoker	475	19.0	1,684	17.1	2,159	17.6
Nonsmoker	2,160	81.0	9,064	82.9	11,224	82.4

Abbreviations: BRFSS, Behavioral Risk Factor Surveillance System; GED, general equivalency diploma.

Part B is survey questions added by the state to the core BRFSS survey questions.

No significant differences in demographics from before to after the law was enacted at P < .05.

Missing values are not included.

Percentage of valid responses among respondents in each category.

Table 1. Characteristics of Respondents to Maine’s Behavioral Risk Factor Surveillance System (BRFSS) Part B Before and After Passage of a Law Prohibiting Smoking in Vehicles, 2007–2010a .