Table 2.
Summary Statistics
| Variables | Categories | 1st Trimester (n=152) | 2nd Trimester (n=176) | 3rd Trimester (n=172) | P-Value5 |
|---|---|---|---|---|---|
| Maternal Age mean (SD) | 27.6 (4.92) | 28.4 (5.42) | 27.5 (5.24) | 0.19 | |
| # of Previous Pregnancies1 median (range) | 2 (0–9) | 2 (0–10 or more) | 2 (0–10 or more) | 0.41 | |
| Race Freq. (n, %) |
African American/Black | 110 (72.37%) | 126 (71.59%) | 116 (67.44%) | 0.68 |
| Caucasian/White | 28 (18.42%) | 37 (21.02%) | 38 (22.09%) | 0.68 | |
| Other/Multiracial2 | 13 (8.55%) | 12 (6.82%) | 14 (8.14%) | 0.68 | |
| Missing | 1 (0.66%) | 1 (0.57%) | 4 (2.33%) | 0.68 | |
| Education (Last grade
completed) Freq. (n, %) |
Less than High School | 35 (23.03%) | 28 (15.91%) | 21 (12.21%) | 0.25 |
| High School Graduate | 59 (38.82%) | 72 (40.91%) | 71 (41.28%) | 0.25 | |
| Some College | 22 (14.47%) | 36 (20.45%) | 28 (16.28%) | 0.25 | |
| College Graduate | 34 (22.37%) | 38 (21.59%) | 48 (27.91%) | 0.25 | |
| Unavailable | 2 (1.32%) | 2 (1.14%) | 4 (2.33%) | 0.25 | |
| Marital Status Freq. (n, %) |
Married3 | 51 (33.55%) | 66 (37.50%) | 75 (43.60%) | 0.29 |
| Widowed/Divorced/ Separated | 4 (2.63%) | 3 (1.70%) | 6 (3.49%) | 0.29 | |
| Never Married | 96 (63.16%) | 105 (59.66%) | 87 (50.58%) | 0.29 | |
| Unavailable | 1 (0.66%) | 2 (1.14%) | 4 (2.33%) | 0.29 | |
| Job Status Freq. (n, %) |
Working Full-Time or in the Military | 72 (47.37%) | 80 (45.45%) | 66 (38.37%) | 0.26 |
| Working Part-Time | 19 (12.50%) | 23 (13.07%) | 24 (13.95%) | 0.26 | |
| Unemployed4 | 59 (38.82%) | 71 (40.34%) | 74 (43.02%) | 0.26 | |
| Unavailable | 2 (1.32%) | 2 (1.14%) | 8 (4.65%) | 0.26 |
Number of pregnancies was unavailable for 1 first trimester respondents, 2 second trimester respondents, and 5 third trimester respondents.
The “Other/Multiracial” group includes respondents who chose “Some other group” or more than one category.
The “Married” group includes respondents who were married, living with someone as married, or married but living apart.
The “Unemployed” group includes respondents who had a job but were unemployed or laid off, those who were not at work for various reasons, full-time homemakers, those in school or training, retired or disabled individuals, and those doing volunteer work.
P-values are the results of a one-way analysis of variance (ANOVA) model to test for a relationship between age and trimester, a Kruskal-Wallis test for a relationship between number of previous pregnancies and trimester, and chi-square tests for relationships between all remaining variables and trimester.