Smoking initiation | χ2 test | |||||||
---|---|---|---|---|---|---|---|---|
No | Yes | |||||||
Variables | Number | Per cent | Number | Per cent | Number | Per cent | χ2 | p Value |
Total | 901 | |||||||
Home smoking restriction (HSR) | ||||||||
No | 629 | 70.52 | 550 | 87.44 | 79 | 12.56 | χ2(df=1)=4.61 | p=0.0317 |
Yes | 263 | 29.48 | 243 | 92.40 | 20 | 7.60 | ||
NK | 9 | 8 | 1 | |||||
Paternal smoking | ||||||||
No | 368 | 42.99 | 334 | 90.76 | 34 | 9.24 | χ2(df=1)=2.00 | p=0.1569 |
Yes | 488 | 57.01 | 428 | 87.70 | 60 | 12.30 | ||
NK | 45 | 39 | 6 | |||||
Maternal smoking | ||||||||
No | 755 | 86.98 | 691 | 91.52 | 64 | 8.48 | χ2(df=1)=33.24 | p<0.0001 |
Yes | 113 | 13.02 | 83 | 73.45 | 30 | 26.55 | ||
NK | 33 | 27 | 6 | |||||
Gender | ||||||||
Girl | 448 | 51.32 | 419 | 93.53 | 29 | 6.47 | χ2(df=1)=20.04 | p<0.0001 |
Boy | 425 | 48.68 | 357 | 84.00 | 68 | 16.00 | ||
NK | 28 | 25 | 3 | |||||
Paternal highest education | ||||||||
Junior high school and below | 91 | 10.22 | 74 | 81.32 | 17 | 18.68 | χ2(df=2)=6.70 | p=0.0350 |
Senior high school | 391 | 43.93 | 355 | 90.79 | 36 | 9.21 | ||
College or university | 408 | 45.84 | 361 | 88.48 | 47 | 11.52 | ||
NK | 11 | 11 | 0 | |||||
Single family | ||||||||
No | 752 | 84.59 | 683 | 90.82 | 69 | 9.18 | χ2(df=1)=18.95 | p<0.0001 |
Yes | 137 | 15.41 | 107 | 78.10 | 30 | 21.90 | ||
NK | 12 | 11 | 1 | |||||
Friend smoking | ||||||||
No | 805 | 93.71 | 726 | 90.19 | 79 | 9.81 | χ2(df=1)=27.95 | p<0.0001 |
Yes | 54 | 6.29 | 36 | 66.67 | 18 | 33.33 | ||
NK | 42 | 39 | 3 | |||||
Intention to smoke | ||||||||
No | 785 | 92.79 | 724 | 92.23 | 61 | 7.77 | χ2(df=1)=101.11 | p<0.0001 |
Yes | 61 | 7.21 | 31 | 50.82 | 30 | 49.18 | ||
NK | 55 | 46 | 9 |
NK, not known.