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TABLE 2

Smoking and E-cigarette Behavior and Policies for the Home and Car Among Enrolled Parents

VariableParent Uses Only Cigarettes (N = 646), n (%)Parent Uses Only E-cigarettes (N = 34), n (%)Parent Is Dual User of Cigarettes and E-cigarettes (N = 81), n (%)P
Anyone smoked in home (past 3 mo) 224 (34.8) 6 (17.6) 26 (32.1) .13 
Strictly enforced smoke-free home policy 393 (61.1) 25 (73.5) 51 (63.0) .35 
Anyone smoked in car (past 3 mo) 327 (56.0)a 7 (22.6)b 52 (72.2)c <.001 
Strictly enforced smoke-free car policy (if no) 247 (42.3)a 18 (58.1)a 18 (25.0)b <.01 
 People smoke in car when children are present 187 (58.6)a 1 (9.1)b 26 (52.0)a .03 
Strictly enforced smoke-free policy for both home and car 219 (37.5)a 15 (48.4)a 16 (22.2)b .02 
Anyone used e-cigarette in home (past 3 mo) 69 (10.7)a 24 (70.6)b 50 (61.7)b <.001 
Strictly enforced vape-free home policy 402 (72.7)a 8 (23.5)b 21 (26.3)b <.001 
Anyone used e-cigarette in car (past 3 mo) 49 (8.4)a 24 (77.4)b 45 (62.5)b <.001 
Strictly enforced vape-free car policy (if no) 340 (65.8)a 6 (19.4)b 17 (23.9)b <.001 
 People use e-cigarette in car when children are present 40 (26.8)a 14 (56.0)b 30 (55.6)b <.001 
Strictly enforced vape-free policy for both home and car 308 (60.5)a 6 (19.4)b 15 (21.1)b <.001 
VariableParent Uses Only Cigarettes (N = 646), n (%)Parent Uses Only E-cigarettes (N = 34), n (%)Parent Is Dual User of Cigarettes and E-cigarettes (N = 81), n (%)P
Anyone smoked in home (past 3 mo) 224 (34.8) 6 (17.6) 26 (32.1) .13 
Strictly enforced smoke-free home policy 393 (61.1) 25 (73.5) 51 (63.0) .35 
Anyone smoked in car (past 3 mo) 327 (56.0)a 7 (22.6)b 52 (72.2)c <.001 
Strictly enforced smoke-free car policy (if no) 247 (42.3)a 18 (58.1)a 18 (25.0)b <.01 
 People smoke in car when children are present 187 (58.6)a 1 (9.1)b 26 (52.0)a .03 
Strictly enforced smoke-free policy for both home and car 219 (37.5)a 15 (48.4)a 16 (22.2)b .02 
Anyone used e-cigarette in home (past 3 mo) 69 (10.7)a 24 (70.6)b 50 (61.7)b <.001 
Strictly enforced vape-free home policy 402 (72.7)a 8 (23.5)b 21 (26.3)b <.001 
Anyone used e-cigarette in car (past 3 mo) 49 (8.4)a 24 (77.4)b 45 (62.5)b <.001 
Strictly enforced vape-free car policy (if no) 340 (65.8)a 6 (19.4)b 17 (23.9)b <.001 
 People use e-cigarette in car when children are present 40 (26.8)a 14 (56.0)b 30 (55.6)b <.001 
Strictly enforced vape-free policy for both home and car 308 (60.5)a 6 (19.4)b 15 (21.1)b <.001 

Missing data were not included. Car items are limited to parents who reported that they have a car. Each superscript letter denotes categories whose column proportions do not differ significantly from each other at the .05 level.

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