Table 5.
Logistic Regression Analysis of FASD Diagnosis as a Function of Mother’s Characteristics and Drinking During Pregnancy: Breastfeeding and Duration of Breastfeeding. Pooled over Five Imputations
| Variable | B | S.E. | Sig. | Odds Ratio | 95% EXP(B) | C.I.for | Fraction Missing Info. | Relative Increase Variance | Relative Efficiency |
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| Lower | Upper | ||||||||
| Covariates | |||||||||
| Gravidity (logarithm) | −.821 | .647 | .205 | .440 | .124 | 1.565 | .063 | .065 | .988 |
| Mother’s education (square root) | −.880 | .202 | <.001 | .415 | .278 | .618 | .167 | .186 | .968 |
| Rural vs. urban | −.152 | .195 | .437 | .859 | .586 | 1.260 | .050 | .051 | .990 |
| Mother’s BMI (logarithm) | 2.449 | .980 | .014 | 11.578 | 1.658 | 80.836 | .215 | .249 | .959 |
| Three or more drinks per occasion during pregnancy | .674 | .320 | .038 | 1.962 | 1.038 | 3.709 | .238 | .281 | .955 |
| Five or more drinks per occasion during pregnancy | .438 | .319 | .179 | 1.550 | .811 | 2.965 | .372 | .509 | .931 |
| Average number of drinks/day during pregnancy (trichotomized) | −.406 | .324 | .227 | .666 | .336 | 1.319 | .530 | .920 | .904 |
| Average number of drinks/week during pregnancy (trichotomized) | −.379 | .419 | .397 | .685 | .252 | 1.859 | .820 | 3.405 | .859 |
| Number of days per month during pregnancy drank usual amount | −.366 | .137 | .009 | .693 | .528 | .911 | .262 | .318 | .950 |
| Predictors | |||||||||
| Drank alcohol while breastfeeding | 1.863 | .729 | .011 | 6.446 | 1.543 | 26.924 | .025 | .025 | .995 |
| Short vs. long duration of breastfeeding | .913 | .551 | .097 | 2.493 | .847 | 7.338 | .004 | .004 | .999 |
| Interaction | −.781 | .426 | .066 | .458 | .199 | 1.054 | .004 | .004 | .999 |
| Constant | −3.071 | 2.068 | .140 | .046 | .001 | 2.781 | .193 | .219 | .963 |