Table 5.
Multivariable Analysis Predicting Respiratory Distress Syndrome
| Covariates | Estimate (SE) | Risk ratio | 95% confidence interval | P-value |
|---|---|---|---|---|
| Maternal age | 0.018 (0.016) | 1.02 | 0.99, 1.05 | .27 |
| Race—black | 0.035 (0.276) | 1.04 | 0.60, 1.78 | .91 |
| Race—Latino | –0.309 (0.323) | 0.73 | 0.39, 1.38 | .34 |
| Race—other | –0.452 (0.432) | 0.64 | 0.27, 1.48 | .34 |
| Ethnicity—Hispanic | –0.065 (0.240) | 0.94 | 0.59, 1.50 | .79 |
| Insurance—commercial | 0.049 (0.257) | 1.05 | 0.63, 1.74 | .85 |
| Education—high school | 0.345 (0.360) | 1.41 | 0.70, 2.86 | .34 |
| Education—college and above | –0.167 (0.401) | 0.85 | 0.39, 1.86 | .68 |
| TSH > 4 mIU/La | 1.039 (0.521) | 2.83 | 1.02, 7.86 | .046 |
| TSH < 0.1 mIU/L | 0.181 (0.418) | 1.20 | 0.53, 2. | .66 |
| BMI at last visita | –0.052 (0.019) | 0.95 | 0.91, 0.99 | .007 |
| Presence of eclampsia/ preeclampsiaa | 1.395 (0.230) | 4.03 | 2.57, 6.33 | <.0001 |
| Cesarean sectiona | 1.177 (0.209) | 3.24 | 2.15, 4.88 | <.0001 |
White race, non-Hispanic ethnicity, public insurance, the highest education level below 8th grades, and 0.1 mIU/L ≤ TSH ≤ 4 mIU/L were used as the reference groups.
Abbreviations: SE,standard error; TSH, thyroid stimulation hormone; BMI, body mass index.
aStatistically significant at α < .05.