Patient Demographics (N = 663) Stratified by Delivery Status
| Entire Sample (N = 663) | Term Delivery (n = 442) | Preterm Delivery (n = 221) | P value | |
|---|---|---|---|---|
| Age mean ± standard deviation | 29.22±5.6 | 29.14±5.4 | 29.36±5.8 | 0.64* |
| Race, n (%) | 0.23† | |||
| Amer Indian/Alaska Native | 1 (0.2) | 1 (0.2) | 0 (0.0) | |
| Asian | 18 (2.7) | 12 (2.7) | 6 (2.7) | |
| Black or African American | 52 (7.8) | 29 (6.6) | 23 (10.4) | |
| Multiracial | 59 (8.9) | 35 (7.9) | 24 (10.9) | |
| Native Hawaiian or Other Pacific Islander | 1 (0.2) | 0 (0.0) | 1 (0.5) | |
| White | 445 (67.1) | 304 (68.8) | 141 (63.8) | |
| Other | 70 (10.6) | 51 (11.5) | 19 (8.6) | |
| Refused/NA/Unknown | 17 (2.6) | 10 (2.3) | 7 (3.2) | |
| Ethnicity, n (%) | 0.67† | |||
| Hispanic or Latino | 187 (28.2) | 121 (27.4) | 66 (29.9) | |
| Not Hispanic or Latino | 471 (71.0) | 318 (71.9) | 153 (69.2) | |
| Declined/Unknown | 5 (0.8) | 3 (0.7) | 2 (0.9) | |
| Language n (%) | 0.04‡ | |||
| English | 609 (91.9) | 404 (91.4) | 205 (92.8) | |
| Spanish | 42 (6.3) | 26 (5.9) | 16 (7.2) | |
| Other | 12 (1.8) | 12 (2.7) | 0 (0.0) | |
| Patient PCP Specialty | 0.11† | |||
| Critical care medicine | 1 (0.2) | 1 (0.2) | 0 (0.0) | |
| Diagnostic radiology | 1 (0.2) | 1 (0.2) | 0 (0.0) | |
| Family medicine | 470 (70.9) | 321 (72.6) | 149 (67.4) | |
| Geriatric medicine | 1 (0.2) | 0 (0.0) | 1 (0.5) | |
| Gerontology | 2 (0.3) | 2 (0.5) | 0 (0.0) | |
| Infectious disease | 1 (0.2) | 1 (0.2) | 0 (0.0) | |
| Internal medicine | 174 (26.2) | 105 (23.8) | 69 (31.2) | |
| Obstetrics and gynecology | 7 (1.1) | 7 (1.6) | 0 (0.0) | |
| Pediatrics | 6 (0.9) | 4 (0.9) | 2 (0.9) | |
| Pre-gravid BMI, median (IQR)§ | 27.5 (23.4-32.6) | 26.5 (23.1-31.4) | 29.0 (24.5-33.9) | <0.001‖ |
↵* Independent-samples t-test.
↵† Fisher’s Exact test.
‡ Chi-square test of independence.
§ 47 records (23 term, 24 preterm) missing pre-gravid BMI.
‖ Mann-Whitney U test. Highlighted bold values indicate statistical significance.
Abbreviations: Amer, American; BMI, Body mass index; NA, Not Available; PCP, primary care physician.