Table 4.
Logistic regression for drinking during pregnancy
| Odds ratio | Confidence interval (95%) | p-value | |
|---|---|---|---|
| Age |
|
|
|
| ≤ 24 |
1 |
– |
|
| 25–29 |
3.09 |
0.65-14.63 |
0.155 |
| 30–34 |
4.54 |
0.98-20.97 |
0.053 |
| 35–39 |
8.51 |
1.80–40.32 |
0.007 |
| ≥40 |
11.32 |
1.85-96.15 |
0.009 |
| City size |
|
|
|
| <200 000 inhabitants |
1 |
– |
|
| >200 000 inhabitants |
1.69 |
1.00-2.86 |
0.048 |
| Tobacco use during pregnancy |
|
|
|
| Not at all |
1 |
– |
|
| Not daily |
1.26 |
0.27-5.74 |
0.768 |
| Daily |
3.76 |
1.57-9.00 |
0.003 |
| Social support |
0.87 |
0.77-0.98 |
0.028 |
| Drinking habit |
0.86 |
0.80-0.93 |
<0.001 |
| Social drinking motives | 1.12 | 1.00-1.26 | 0.044 |
The Nagelkerke R square value = 0.150n.