Table 6.
Logistic regression analysis across different risk groups (P<.001).
| Characteristic | Medium-risk versus high-riska, ORb (95% CI) | Medium- and low-risk versus high-riskc, OR (95% CI) | |
| Education level (ref: junior high school or less)d |
|
|
|
|
|
Senior high school | 4.65 (1.54-13.99) | 4.50 (1.50-13.52) |
|
|
University/college | 13.22 (4.24-41.23) | 13.46 (4.32-41.93) |
|
|
Graduate school | 18.40 (5.03-67.36) | 19.11 (5.23-69.90) |
| Income (New Taiwan $) (ref: $0)e |
|
||
|
|
≤$23,800 | 0.90 (0.37-2.20) | 0.93 (0.38-2.28) |
|
|
$23,801-$30,000 | 4.06 (1.44-11.45) | 3.86 (1.37-10.87) |
|
|
$30,001-$50,000 | 4.08 (1.72-9.69) | 3.78 (1.59-8.95) |
|
|
$50,001-$70,000 | 4.23 (1.56-11.47) | 3.92 (1.45-10.59) |
|
|
$70,001-$100,000 | 2.18 (0.75-6.33) | 2.16 (0.75-6.23) |
|
|
≥$100,001 | 1.76 (0.58-5.36) | 1.62 (0.54-4.90) |
| Level of internet use (ref: never/rarely) |
|
||
|
|
Several times per week/month | 9.19 (2.61-32.37) | 9.05 (2.57-31.84) |
|
|
Several times per day | 3.80 (1.71-8.46) | 3.95 (1.77-8.79) |
| Health status (ref: poor) |
|
||
|
|
Normal | 1.93 (0.90-4.14) | 2.00 (0.93-4.31) |
|
|
Good | 2.98 (1.30-6.83) | 3.22 (1.40-7.39) |
a–2 log-likelihood: 564.251; Nagelkerke R2: 0.311.
bOR: odds ratio.
c–2 log-likelihood: 576.339; Nagelkerke R2: 0.309.
dref: reference.
eA currency exchange rate of NT $1=US $0.035 is applicable.