Table 1.
Parameters estimated in the functional form for smoking and drinking in Logit coeffients*
| Intercept | Slope | Thresholds for during pregnancy (2nd time point) | Thresholds for all other time points | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Smoking | |||||||||
|
| |||||||||
| Mean | Variance | Mean | Variance | #1 | #2 | #3 | #1 | #2 | #3 |
| 0.000 | 46.030 | −0.280 | 0.274 | 9.258 | 11.163 | 13.492 | 6.311 | 7.869 | 10.291 |
|
| |||||||||
| Drinking | |||||||||
|
| |||||||||
| Mean | Variance | Mean | Variance | #1 | #2 | #3 | #1 | #2 | #3 |
| 0.000 | 8.421 | −0.113 | 0.189 | 6.240 | 7.536 | 10.248 | 1.217 | 2.959 | 5.569 |
*
Results based on a model a random intercept and a random slope as it best fits the data (for details, please see online supplement material). All parameters presented in the table were statistically significant (P-value<.01).