Total junior high school students | Male | Female | ||||||||||
OR | 95%CI | OR | 95%CI | OR | 95%CI | |||||||
Only father smokes | 0.60 | * | 0.49 | 0.74 | 0.62 | * | 0.48 | 0.81 | 0.55 | * | 0.39 | 0.76 |
Only mother smokes | 2.50 | * | 1.81 | 3.46 | 2.72 | * | 1.75 | 4.22 | 2.42 | * | 1.49 | 3.92 |
Only older brother smokes | 2.43 | * | 1.43 | 4.12 | 2.41 | * | 1.14 | 5.09 | 2.61 | * | 1.23 | 5.56 |
Only older sister smokes | 1.48 | 0.42 | 5.16 | 1.63 | 0.34 | 7.87 | 1.25 | 0.15 | 10.22 | |||
Only father smokes | 0.76 | * | 0.64 | 0.89 | 0.73 | * | 0.60 | 0.90 | 0.79 | 0.60 | 1.05 | |
Only mother smokes | 2.66 | * | 1.95 | 3.63 | 2.68 | * | 1.79 | 4.03 | 2.68 | * | 1.61 | 4.44 |
Only older brother smokes | 1.99 | * | 1.39 | 2.84 | 1.90 | * | 1.20 | 3.01 | 2.12 | * | 1.17 | 3.82 |
Only older sister smokes | 2.79 | * | 1.33 | 5.86 | 3.22 | 0.98 | 10.58 | 3.41 | * | 1.27 | 9.16 |