Table 3:
Associations of having a strict home rule for e-cigarette use with youth’s later e-cigarette use susceptibility, initiation, and regularity from weighted logistic regressions
| E-cigarette use susceptibilitya |
E-cigarette use initiationa |
Regular e-cigarette useb |
||||
|---|---|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | OR | 95% CI | |
| 1. Home e-cigarette rule (W4): | ||||||
| Partial or no rule | Ref | Ref | Ref | Ref | Ref | Ref |
| Strict rule | 0.80 | (0.51, 1.26) | 1.14 | (0.69, 1.90) | 0.36* | (0.16, 0.85) |
| 2. Parent factor (W4): | ||||||
| Age | 1.02 | (0.99, 1.04) | 1.00 | (0.98, 1.02) | 1.00 | (0.95, 1.05) |
| Gender: Female | 0.97 | (0.66, 1.44) | 1.08 | (0.74, 1.56) | 0.46* | (0.21, 0.99) |
| Race/ethnicity: | ||||||
| Non-Hispanic White | Ref | Ref | Ref | Ref | Ref | Ref |
| Non-Hispanic Black | 0.58* | (0.35, 0.95) | 0.28*** | (0.14, 0.56) | 0.34 | (0.093, 1.26) |
| Hispanic | 1.03 | (0.65, 1.65) | 0.59 | (0.34, 1.03) | 0.89 | (0.29, 2.74) |
| Other | 1.08 | (0.53, 2.20) | 0.28* | (0.090, 0.85) | 0.60 | (0.056, 6.51) |
| Parent education | ||||||
| Less than high school | Ref | Ref | Ref | Ref | Ref | Ref |
| High school graduate/GED | 0.93 | (0.53, 1.63) | 1.34 | (0.64, 2.80) | 1.60 | (0.35, 7.29) |
| College no degree/Associate degree | 0.98 | (0.56, 1.71) | 1.49 | (0.73, 3.04) | 3.37 | (0.72, 15.9) |
| Bachelor’s/Advanced | 1.31 | (0.72, 2.36) | 1.09 | (0.53, 2.23) | 3.01 | (0.47, 19.1) |
| Parent employment | ||||||
| Not currently working | Ref | Ref | Ref | Ref | Ref | Ref |
| Part-time | 1.62 | (0.90, 2.95) | 1.11 | (0.64, 1.95) | 2.31 | (0.72, 7.36) |
| Full-time | 1.70* | (1.05, 2.77) | 1.04 | (0.69, 1.58) | 1.63 | (0.70, 3.81) |
| Own or rental home | ||||||
| Own | Ref | Ref | Ref | Ref | Ref | Ref |
| Rent | 1.03 | (0.66, 1.61) | 0.76 | (0.48, 1.19) | 0.99 | (0.51, 1.95) |
| Other | 1.50 | (0.71, 3.18) | 0.83 | (0.34, 2.04) | 0.20 | (0.020, 2.01) |
| Use e-cigarettes: yes | 1.37 | (0.56, 3.39) | 1.50 | (0.77, 2.91) | 1.08 | (0.38, 3.12) |
| Use other tobacco products: yes | 1.05 | (0.68, 1.61) | 1.43 | (0.91, 2.24) | 0.58 | (0.25, 1.33) |
| Perceived e-cig harmfulness | ||||||
| Not at all harmful | Ref | Ref | Ref | Ref | Ref | Ref |
| Slightly harmful | 1.63 | (0.26, 10.4) | 2.17 | (0.42, 11.1) | 1.34 | (0.029, 61.9) |
| Somewhat harmful | 1.10 | (0.17, 7.17) | 1.66 | (0.35, 7.89) | 1.38 | (0.040, 48.2) |
| Very harmful | 1.35 | (0.20, 8.94) | 1.42 | (0.31, 6.41) | 1.67 | (0.039, 72.3) |
| Extremely harmful | 1.10 | (0.16, 7.73) | 1.33 | (0.29, 6.18) | 1.41 | (0.032, 61.8) |
| 3. Youth factor (W4): | ||||||
| Age | 1.03 | (0.87, 1.22) | 1.12 | (0.95, 1.31) | 1.34 | (0.97, 1.85) |
| Gender: Female | 1.83*** | (1.31, 2.56) | 1.15 | (0.84, 1.59) | 1.94 | (0.90, 4.22) |
| GPA | ||||||
| D and below | Ref | Ref | Ref | Ref | Ref | Ref |
| C | 0.93 | (0.14, 6.34) | 0.22* | (0.069, 0.72) | 1.50 | (0.41, 5.57) |
| B | 0.69 | (0.11, 4.49) | 0.35 | (0.11, 1.18) | 0.47 | (0.12, 1.75) |
| A | 0.83 | (0.12, 5.57) | 0.27* | (0.087, 0.86) | 0.29 | (0.079, 1.07) |
| Unweighted N | 807 | 1,027 | 293 | |||
*
p<0.05
***
p<0.001
a
Among participants who were never e-cigarette users at Wave 4 and provided susceptibility and initiation information at Wave 5 (i.e., those who were at risk for Wave 5 susceptibility)
b
Among participants who were ever e-cigarette users at Wave 5