Baseline characteristics of female adolescents in the study population who had smoked at most one cigarette by baseline by progression to established smoking and adjusted odds ratios
| % progressing to established smokers† | ||||
|---|---|---|---|---|
| Yes 23.4 (n=64) | No 76.6 (n=209) | Adjusted OR‡ | 95% CI | |
| †Established smokers are girls who had smoked more than 100 cigarettes in their life. | ||||
| ‡Multivariate logistic model only include perceived value of being thin, race/ethnicity, age, baseline smoking status, belief that smoking keeps weight down at follow up. | ||||
| *p<0.1; **p<0.5; ***p <0.01. | ||||
| Perceived value of being thin (0–10 scale) | 1.15 | 1.019 to 1.293 | ||
| Low (0–4) | 7.1 | 92.86** | 1.00 | |
| Medium (5–7) | 23.85 | 76.15 | 3.37 | 1.041 to 10.941 |
| High (8–10) | 29.31 | 70.69 | 4.46 | 1.400 to 16.689 |
| Age (year) | 1.32 | 0.978 to 1.777 | ||
| Age group | ||||
| 12–13 | 19.46 | 80.54* | ||
| 14–15 | 28.46 | 71.54 | ||
| Race/ethnicity | ||||
| White, non-Hispanic | 25.44 | 74.56 | 1.00 | |
| Other | 13.95 | 86.05 | 0.57 | 0.212 to 1.507 |
| Baseline smoking status | ||||
| Non-susceptible non-smoker | 13.10 | 86.90*** | 1.00 | |
| Susceptible non-smoker | 18.03 | 81.97 | 1.02 | 0.634 to 2.372 |
| Experimenter | 50.00 | 50.00 | 5.24 | 2.721 to 10.091 |
| Education level of adult informant | ||||
| High school or less | 29.17 | 70.83** | ||
| More than high school | 18.67 | 81.33 | ||
| Belief that smoking keeps weight down | ||||
| No | 23.11 | 76.89 | ||
| Yes | 26.42 | 73.58 | ||
| Dieting behaviour | ||||
| Yes | 23.75 | 76.23 | ||
| No | 23.28 | 76.72 | ||
| Weight evaluation | ||||
| Underweight | 20.00 | 80.00 | ||
| Just about right | 25.13 | 74.03 | ||
| Overweight | 20.00 | 80.00 | ||
| Depression | ||||
| Low | 18.09 | 81.91 | ||
| Medium | 27.47 | 72.53 | ||
| High | 25.00 | 75.00 | ||
| Body mass index (kg/m2) | ||||
| BMI <20 | 20.00 | 80.00 | ||
| 20⩾ BMI <23 | 28.21 | 71.79 | ||
| 23⩾ BMI | 28.57 | 71.43 | ||