Table 2.
Unadjusted and adjusted associations between internet use and binge drinking in 8th and 10th graders.
| Unadjusted |
Adjusted |
|||
|---|---|---|---|---|
| Grade 8 (99% CI) |
Grade 10 (99% CI) |
Grade 8 (99% CI) |
Grade 10 (99% CI) |
|
| Internet use | ||||
| < 1 h/wk. (ref.) | 1.00 | 1.00 | 1.00 | 1.00 |
| 1 to 5 h/wk | 1.10 (0.76, 1.58) |
0.98 (0.87, 1.11) |
1.24 (0.85, 1.82) |
1.06 (0.96, 1.16) |
| 6 to 19 h/wk | 1.64 (1.18, 2.29)⁎⁎⁎ |
1.10 (0.94, 1.29) |
1.83 (1.28, 2.61)⁎⁎⁎ |
1.20 (1.03, 1.40)⁎⁎ |
| ≥ 20 h/wk | 2.76 (2.02, 3.76)⁎⁎⁎ |
1.22 (1.00, 1.49)⁎ |
2.78 (1.99, 3.87)⁎⁎⁎ |
1.30 (1.07, 1.58)⁎⁎⁎ |
| Time working | ||||
| 1 to 20 h/wk | – | – | 1.90 (1.69, 2.15)⁎⁎⁎ |
1.46 (1.36, 1.56)⁎⁎⁎ |
| > 20 h/wk | – | – | 3.08 (1.42, 6.69)⁎⁎⁎ |
2.65 (2.00, 3.52)⁎⁎⁎ |
| Average grades | ||||
| B + to B − | – | – | 2.08 (1.90, 2.29)⁎⁎⁎ |
1.72 (1.46, 2.01)⁎⁎⁎ |
| C + or lower | – | – | 4.71 (3.69, 6.00)⁎⁎⁎ |
2.87 (2.55, 3.23)⁎⁎⁎ |
| Parent education | ||||
| College degree or higher | – | – | 0.67 (0.54, 0.84)⁎⁎⁎ |
1.04 (0.97, 1.12) |
| Household | ||||
| Mother only | – | – | 1.10 (0.88, 1.36) |
1.26 (1.10, 1.44)⁎⁎⁎ |
| Father only | – | – | 1.67 (1.17, 2.40)⁎⁎⁎ |
1.54 (1.34, 1.79)⁎⁎⁎ |
| Neither | – | – | 1.61 (0.69, 3.80) |
0.86 (0.60, 1.22) |
| Race | ||||
| African American | – | – | 0.54 (0.34, 0.86)⁎⁎ |
0.33 (0.26, 0.41)⁎⁎⁎ |
| Hispanic, other, or not specified | – | – | 1.12 (0.91, 1.38) |
0.81 (0.70, 0.95)⁎⁎ |
| Sex | ||||
| Male | – | – | 0.92 (0.77,1.11) |
1.07 (0.95,1.21) |
| Age | ||||
| ≥ 16 years | – | – | – | 1.10 (0.96, 1.25) |
Exponentiated coefficient estimates (“odds ratios”) and 99% confidence intervals reported for outcome of binge drinking relative to reference level of internet use. –, not applicable; italics, reference group.
⁎
P < 0.05.
⁎⁎
P < 0.01.
⁎⁎⁎
P < 0.001.