Characteristic | Total OR [95% CI] | Male | Female |
---|---|---|---|
Age (years) | Â | Â | Â |
   Total |  |  |  |
   ≤ 12 | 1.00 | 1.00 | 1.00 |
   13 | 2.44 [2.03, 2.94] | 2.49 [1.93, 3.21] | 2.49 [1.90, 3.27] |
   14 | 3.67 [3.07, 4.39] | 3.85 [3.01, 4.93] | 3.59 [2.76, 4.67] |
   15 | 4.78 [4.01, 5.71] | 4.71 [3.68, 6.01] | 5.02 [3.88, 6.49] |
   16+ | 8.26 [7.06, 9.67] | 7.65 [6.15, 9.51] | 9.20 [7.30, 11.59] |
Ethnicity | Â | Â | Â |
   White | 1.00 | 1.00 | 1.00 |
Black or African American | 0.48 [0.43, 0.54] | 0.42 [0.35, 0.50] | 0.55 [0.47, 0.65] |
   Asian | 0.46 [0.37, 0.57] | 0.36 [0.26, 0.50] | 0.54 [0.41, 0.72] |
   Hispanic | 0.83 [0.75, 0.92] | 0.70 [0.61, 0.80] | 0.99 [0.86, 1.14] |
American Indian/Alaska Natives | 0.97 [0.82, 1.15] | 0.81 [0.63, 1.05] | 1.14 [0.91, 1.43] |
Native Hawaiian/Other Pacific Islander | 0.91 [0.73, 1.15] | 0.65 [0.45, 0.95] | 1.13 [0.84, 1.52] |
Lived with a cigarette smoker | Â | Â | Â |
   No | 1.00 | 1.00 | 1.00 |
   Yes | 2.83 [2.60, 3.08] | 3.06 [2.71, 3.46] | 2.63 [2.33, 2.97] |
Closest friends smoked cigarettes | Â | Â | Â |
   None | 1.00 | 1.00 | 1.00 |
   One | 3.63 [3.15, 4.19] | 3.15 [2.55, 3.88] | 4.36 [3.58, 5.31] |
   Two or more | 5.03 [4.27, 5.95] | 4.76 [3.66, 6.19] | 5.69 [4.60, 7.05] |
Perception that it is safe to smoke for only a year or two, if quit after that | Â | Â | Â |
   Definitely not | 1.00 | 1.00 | 1.00 |
   Probably not | 4.65 [4.21, 5.13] | 4.97 [4.34, 5.68] | 4.40 [3.80, 5.09] |
   Probably yes | 10.32 [9.01, 11.82] | 9.50 [6.42, 12.64] | 10.71 [8.85, 12.96] |
   Definitely yes | 12.63 [10.42, 15.30] | 10.47 [8.59, 12.76] | 15.49 [12.17, 19.71] |
Pocket money ($/week) | Â | Â | Â |
   None | 1.00 | 1.00 | 1.00 |
   1–10 | 1.21 [1.04, 1.41] | 1.24 [1.01, 1.53] | 1.14 [0.91, 1.44] |
   11–20 | 2.12 [1.82, 2.46] | 1.99 [1.62, 2.44] | 2.29 [1.83, 2.85] |
   21–50 | 3.15 [2.71, 3.66] | 2.92 [2.37, 3.59] | 3.47 [2.78, 4.32] |
   51–100 | 3.99 [3.37, 4.71] | 4.02 [3.18, 5.06] | 4.12 [3.24, 5.25] |
   >100 | 5.56 [4.46, 6.50] | 4.91 [3.90, 6.18] | 6.40 [5.14, 7.96] |