TABLE 1.
Clinical and demographic characteristics of pilot test participants
| US Black Birthing Population (2019) a | Pilot Test Sample | Median IRT Scale Score | ||||||
|---|---|---|---|---|---|---|---|---|
| N = 3863 | N = 806 | Racism | P b | Kinship | P b | Humanity | P b | |
| Maternal age | n (%) | n (%) | .765 | 0.998 | .968 | |||
| 15‐19 years | 171 (4.4) | 20 (3.4) | −0.52 | −0.04 | 0.06 | |||
| 20‐34 years | 2796 (72.4) | 424 (73.1) | −0.03 | −0.04 | 0.08 | |||
| 35‐50 years | 896 (23.2) | 136 (23.4) | −0.03 | −0.04 | 0.11 | |||
| Missing | 226 | |||||||
| BMI | .591 | 0.366 | .775 | |||||
| <30 | NA | 478 (60.2) | −0.03 | −0.04 | 0.1 | |||
| ≥30 | NA | 316 (39.8) | 0.07 | 0.06 | 0.11 | |||
| Missing | 11 | |||||||
| Household income | <.0001 | 0.001 | .001 | |||||
| <$50 000 | 1783 (50.4) | 468 (61.9) | 0.16 | 0.16 | 0.24 | |||
| $50 000 to $75 000 | 582 (16.5) | 108 (14.3) | 0.2 | 0.16 | 0.12 | |||
| >$75 000 | 1171 (33.1) | 180 (23.8) | −0.28 | −0.14 | −0.09 | |||
| Missing | 50 | |||||||
| Educational attainment | .001 | 0.006 | .001 | |||||
| HS Diploma/GED or less | 1575 (40.8) | 172 (21.4) | −0.28 | −0.25 | −0.06 | |||
| Some college, associates | 1440 (37.3) | 289 (36.0) | 0.24 | 0.16 | 0.38 | |||
| Bachelor's degree | 541 (14.0) | 180 (22.4) | −0.14 | −0.09 | −0.08 | |||
| Master's/Doctorate/Professional | 307 (8.0) | 162 (20.2) | 0.02 | 0.06 | 0.12 | |||
| Missing | 3 | |||||||
| Relationship status | .133 | 0.917 | .497 | |||||
| Married | 1453 (37.6) | 318 (39.7) | −0.14 | −0.04 | 0.05 | |||
| Single | 2410 (62.4) | 483 (60.3) | 0.07 | 0.06 | 0.16 | |||
| Missing | 5 | |||||||
| Cohabitation status | .349 | 0.618 | .793 | |||||
| Yes | NA | 498 (62.2) | −0.03 | −0.04 | 0.08 | |||
| No | NA | 303 (37.8) | 0.07 | 0.06 | 0.16 | |||
| Missing | 5 | |||||||
| Birthing with partner/support person | .001 | 0.0001 | .007 | |||||
| Yes | NA | 720 (89.3) | −0.03 | −0.04 | 0.05 | |||
| No | NA | 86 (10.7) | 0.32 | 0.45 | 0.47 | |||
| Type of delivery | .303 | 0.246 | .474 | |||||
| Vaginal birth | NA | 499 (62.3) | −0.03 | −0.04 | 0.05 | |||
| Cesarean birth | NA | 302 (37.7) | 0.16 | 0.06 | 0.15 | |||
| Missing | 5 | |||||||
Abbreviations: GED, General Educational Development; HS, High School; IRT, Item Response Theory.
a
Source: United States Census Bureau, Beta. Custom Table, 2019.https://data.census.gov/mdat/#/search?ds=ACSPUMS1Y2019&vv=*AGEP(16:50)&cv=FER(1),RACBLK(1)&wt=PWGTP
b
P‐values to compare median IRT scaled scores are derived from Wilcoxon rank sum test (for dichotomous variables) or Kruskal–Wallis test (for variables with >2 categories). P‐values <.05 were considered statistically significant.