Table 1.
Logit coefficients and odds ratios from propensity score estimation model predicting participation in CP group prenatal care (n = 569)
| Covariate | b | se | 95% CI | OR |
|---|---|---|---|---|
| Height at entry | .14 | .15 | (−.16, .43) | 1.15 |
| Weight at entry | −.02 | .03 | (−.08, .03) | .98 |
| Pre-pregnancy BMI | .16 | .17 | (−.17, .50) | 1.17 |
| Maternal age | −.03 | .03 | (−.08, .03) | .97 |
| Black, non-Hispanic | .13 | .33 | (−.51, .78) | 1.14 |
| Hispanic | −.15 | .99 | (−2.08, 1.79) | .86 |
| Primary language: Spanish | .17 | .98 | (−1.75, 2.1) | 1.19 |
| Single | −.19 | .28 | (−.74, .36) | .83 |
| Education | .13 | .09 | (−.04, .30) | 1.14 |
| Employed | .27 | .24 | (−.19, .74) | 1.31 |
| Public insurance | .14 | .30 | (−.45, .74) | 1.15 |
| Gravidity | −.21 | .08** | (−.36, −.07) | .81 |
| Gestational age at entry | −.06 | .02** | (−.09, −.02) | .94 |
| Systolic blood pressure | .00 | .01 | (−.02, .01) | 1.00 |
| Abnormal pap history | −.23 | .26 | (−.73, .28) | .79 |
| Alcohol use history | .92 | .38* | (.17, 1.67) | 2.51 |
| Blood transfusion history | .79 | .64 | (−.47, 2.05) | 2.20 |
| Depression/psychiatric illness history | −.22 | .36 | (−.94, .49) | .80 |
| Diabetes, non-gestational history | .08 | .77 | (−1.43, 1.58) | 1.08 |
| Drug use risk history | .16 | .26 | (−.35, .66) | 1.17 |
| Pulmonary problems | .36 | .33 | (−.29, 1.01) | 1.43 |
| Gynecological surgery history | .44 | .60 | (−.73, 1.62) | 1.55 |
| Hypertension history | −.17 | .45 | (−1.04, .70) | .84 |
| Kidney disease/UTIs history | .91 | .44* | (.05, 1.77) | 2.48 |
| Operations/hospitalizations history | .03 | .25 | (−.46, .51) | 1.03 |
| Trauma/violence history | −.68 | .59 | (−1.83, .46) | .51 |
| No medical history risk factors | .12 | .24 | (−.35, .58) | 1.13 |
| Constant | −8.25 | 9.61 | (−27.09, 10.59) |
*
p < .05.
**
p < .01.
b = logit coefficient, se = standard error of logit coefficient, OR = odds ratio (exp[b]), BMI = body mass index, UTI = urinary tract infection. Results are from a logistic regression model predicting type of prenatal care received (1= CP, 0 = traditional care).