Adjusted Predictors of Birth Weight
| Risk Factor | Multiple Linear Regression Coefficient g (SE) | PValue |
|---|---|---|
| Note: All variables obtained during the study, including maternal planning status and psychosocial variables depression, anxiety, stress, somatic concerns, and drug problems, were screened for possible inclusion in the multivariate linear model. | ||
| Final multiple linear regression model: dependent variable birth weight was analyzed as a continuous variable with adjustment for the following variables: dominant language (English or Spanish); age (18–24 y vs 25+ y); previous low–birth-weight infant (yes, no); relationship (single or dating vs married or living together); low maternal enrollment weight (less than 132 lb vs 132+ lb); maternal anxiety (none to mild, moderate or greater); and mother reports partner happier (yes, no). | ||
| Intercept | 3,323 (114) | .0001 |
| Spanish-speaking mother | 187 (72) | .01 |
| Young maternal age | −164 (76) | .03 |
| Previous low–birth-weight infant | −455 (146) | .002 |
| Parents married or live together | 113 (85) | .19 |
| Low maternal enrollment weight | −267 (74) | .0004 |
| Maternal medical problems | 201 (108) | .06 |
| Maternal anxiety | 271 (121) | .027 |
| Maternal report of greater partner happiness | −472 (171) | .007 |