TABLE 2

Variable . | Parent 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 |

Variable . | Parent 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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