Table 4.
Odds Ratios and 95% Confidence Intervals for Multilevel Logistic Regression Models of Current Smoking: Age by Role Interactions
| Females
|
Males
|
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model 1 | Model 2 | Model 3 | Model 1 | Model 2 | Model 3 | |||||||
| OR | 95%CI | |||||||||||
| Fixed Effects | ||||||||||||
| Age/10 | 25.18 *** | 8.3,76.5 | 24.86 *** | 8.5,73.0 | 27.34 *** | 8.9,84.0 | 28.98 *** | 9.2,91.5 | 13.81 *** | 4.6,42.0 | 19.98 *** | 6.2,64.5 |
| Age/10 Squared | 0.34 *** | 0.2,0.6 | 0.35 *** | 0.2,0.5 | 0.31 *** | 0.2,0.5 | 0.36 *** | 0.2,0.6 | 0.52 ** | 0.3,0.8 | 0.44 ** | 0.3,0.7 |
| Interactions | ||||||||||||
| Parent ed HS deg * age | 7.08 ** | 2.1,24.0 | 7.37 ** | 2.2,25.0 | 6.85 ** | 2.0,23.4 | 6.25 ** | 1.7,22.8 | 6.35 ** | 1.7,23.2 | 6.45 ** | 1.7,23.7 |
| Parent ed HS deg * age2 | 0.48 * | 0.3,0.8 | 0.47 ** | 0.3,0.8 | 0.49 * | 0.3,0.9 | 0.45 ** | 0.3,0.8 | 0.45 ** | 0.3,0.8 | 0.45 ** | 0.2,0.8 |
| Parent ed some coll* age | 7.15 *** | 2.40,21.3 | 7.53 *** | 2.5,22.5 | 6.90 *** | 2.3,20.7 | 5.81 ** | 1.9,18.0 | 5.79 ** | 1.9,18.0 | 5.77 ** | 1.9,18.0 |
| Parent ed some coll * age2 | 0.47 ** | 0.3,0.8 | 0.46 ** | 0.3,0.8 | 0.48 ** | 0.3,0.8 | 0.50 ** | 0.3,0.8 | 0.50 ** | 0.3,0.9 | 0.50 * | 0.3,0.9 |
| Parent ed coll deg* age | 14.43 *** | 4.0,52.7 | 15.25 *** | 4.2,55.9 | 13.53 *** | 3.7,50.0 | 3.39 | 0.9,13.0 | 3.20 | 0.8,12.3 | 3.43 | 0.9,13.3 |
| Parent ed coll deg* age2 | 0.28 *** | 02,0.5 | 0.27 *** | 0.2,0.5 | 0.29 *** | 0.2,0.5 | 0.62 | 0.3,1.1 | 0.64 | 0.3,1.2 | 0.61 | 0.3,1.1 |
| Role Measures | ||||||||||||
| In school | 0.82 | 0.5,13 | 0.91 | 0.8,1.1 | 0.92 | 0.8,1.1 | 1.15 | 0.8,1.8 | 0.81 ** | 0.7,1.0 | 0.83 * | 0.7,1.0 |
| Occupation (None) | ||||||||||||
| Professional | 0.77 * | 0.6,1.0 | 0.68 | 0.3,1.4 | 0.77 * | 0.6,1.0 | 0.48 *** | 0.4,0.6 | 1.04 | 0.5,2.4 | 0.48 *** | 0.4,0.6 |
| Not professional | 1.23 ** | 1.1,1.4 | 1.76 *** | 1.4,2.2 | 1.23 ** | 1.1,1.4 | 1.20 ** | 1.1,1.4 | 1.99 *** | 1.5,2.6 | 1.20 ** | 1.1,1.4 |
| Living with parents | 1.05 | 0.9,1.2 | 1.03 | 0.9,1.2 | 1.04 | 0.7,1.5 | 1.13 | 1.0,1.3 | 1.12 | 1.0,1.3 | 1.05 | 0.7,1.6 |
| Family (not married without kids) | ||||||||||||
| Married with kids | 0.28 *** | 0.2,0.4 | 0.27 *** | 0.2,0.4 | 0.57 | 0.3,1.3 | 0.65 ** | 0.5,0.9 | 0.67 ** | 0.5,0.9 | 1.83 | 0.6,5.4 |
| Married without kids | 0.34 *** | 0.3,0.5 | 0.34 *** | 0.3,0.5 | 0.33 * | 0.1,0.9 | 0.54 *** | 0.4,0.7 | 0.55 *** | 0.4,0.7 | 0.52 | 0.2,1.8 |
| Not married with kids | 0.73 ** | 0.6,0.9 | 0.73 ** | 0.6,0.9 | 0.34 *** | 0.2,0.6 | 1.37 * | 1.0,1.9 | 1.39 * | 1.0,1.9 | 0.23 * | 0.1,0.7 |
| Role * Age Interactions | ||||||||||||
| In school* age | 1.13 | 0.8,1.6 | 0.73 | 0.5,1.1 | ||||||||
| Occupation (None) | ||||||||||||
| Professional * age | 0.97 | 0.6,1.6 | 0.46 * | 0.3,0.9 | ||||||||
| Not professional * age | 0.63 *** | 0.5,0.8 | 0.52 *** | 0.4,0.7 | ||||||||
| Living with parents * age | 1.02 | 0.7,1.4 | 1.08 | 0.8,1.5 | ||||||||
| Family (not married without kids) | ||||||||||||
| Married with kids * age | 0.65 | 0.4,1.1 | 0.52 | 0.3,1.1 | ||||||||
| Married without kids* age | 1.03 | 0.5,2.2 | 1.03 | 0.5,2.4 | ||||||||
| Not married with kids* age | 1.91 ** | 1.2,3.0 | 3.59 ** | 1.6,7.9 | ||||||||
***
p < .001;
**
p < .01;
*
p <.05
Source: National Longitudinal Study of Adolescent Health (Female N person = 8774; Female N person-time = 29584; Male N person = 8233; Male N person-time = 26805)
Note: Controls for other variables in Table 3 included.