Group A | Group B | Group C | Group D | Group E | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Total | 474 | Total | 299 | Total | 313 | Total | 61 | Total | 292 | |||
Characteristic | N | % | N | % | N | % | N | % | N | % | χ2 | p |
Age at Index Delivery (years) | 213 | < 0.001 | ||||||||||
< 25 | 6 | 1.3 | 25 | 8.4 | 11 | 3.5 | 6 | 9.8 | 23 | 7.9 | ||
25–30 | 49 | 10.3 | 108 | 36.1 | 64 | 20.4 | 20 | 32.8 | 114 | 39.0 | ||
31–35 | 176 | 37.1 | 72 | 24.1 | 99 | 31.6 | 25 | 41.0 | 104 | 35.6 | ||
36–40 | 201 | 42.4 | 60 | 20.1 | 98 | 31.3 | 8 | 13.1 | 44 | 15.1 | ||
> 40 | 42 | 8.9 | 34 | 11.4 | 41 | 13.1 | 2 | 3.3 | 7 | 2.4 | ||
Gestational Age at Index Delivery (weeks) | 68 | < 0.001 | ||||||||||
< 28 | 2 | 0.4 | 0 | 0.0 | 3 | 1.0 | 0 | 0.0 | 2 | 0.7 | ||
29–36 | 46 | 9.7 | 33 | 11.0 | 77 | 24.6 | 6 | 9.8 | 50 | 17.1 | ||
37–40 | 391 | 82.5 | 216 | 72.2 | 217 | 69.3 | 47 | 77.0 | 209 | 71.6 | ||
> 40 | 35 | 7.4 | 50 | 16.7 | 16 | 5.1 | 8 | 13.1 | 31 | 10.6 | ||
Social Vulnerability Index (SVI) | 354 | < 0.001 | ||||||||||
Low-Medium | 350 | 73.8 | 244 | 81.6 | 223 | 71.2 | 9 | 14.8 | 61 | 20.9 | ||
High | 124 | 26.2 | 55 | 18.4 | 90 | 28.8 | 52 | 85.2 | 231 | 79.1 | ||
Race & Ethnicity | 973 | < 0.001 | ||||||||||
White | 330 | 69.6 | 297 | 99.3 | 261 | 83.4 | 6 | 9.8 | 14 | 4.8 | ||
Asian | 39 | 8.2 | 1 | 0.3 | 13 | 4.2 | 3 | 4.9 | 14 | 4.8 | ||
Black/African American | 28 | 5.9 | 1 | 0.3 | 7 | 2.2 | 10 | 16.4 | 127 | 43.5 | ||
Hispanic/Latina | 38 | 8.0 | 0 | 0.0 | 13 | 4.2 | 37 | 60.7 | 129 | 44.2 | ||
Other | 39 | 8.2 | 0 | 0.0 | 19 | 6.1 | 5 | 8.2 | 8 | 2.7 | ||
Health Insurance | 960 | < 0.001 | ||||||||||
Private | 419 | 88.4 | 24 | 8.0 | 273 | 87.2 | 4 | 6.6 | 32 | 11.0 | ||
Public | 33 | 7.0 | 267 | 89.3 | 24 | 7.7 | 55 | 90.2 | 253 | 86.6 | ||
None | 22 | 4.6 | 8 | 2.7 | 16 | 5.1 | 2 | 3.3 | 7 | 2.4 | ||
Pre-pregnancy BMI | 174 | < 0.001 | ||||||||||
< 30 | 317 | 66.9 | 162 | 54.2 | 201 | 64.2 | 24 | 39.3 | 90 | 30.8 | ||
30–34.9 | 83 | 17.5 | 90 | 30.1 | 70 | 22.4 | 25 | 41.0 | 100 | 34.2 | ||
35–39.9 | 24 | 5.1 | 25 | 8.4 | 19 | 6.1 | 4 | 6.6 | 51 | 17.5 | ||
>/= 40 | 9 | 1.9 | 13 | 4.3 | 8 | 2.6 | 6 | 9.8 | 41 | 14.0 | ||
Missing | 41 | 8.6 | 9 | 3.0 | 15 | 4.8 | 2 | 3.3 | 10 | 3.4 | ||
Third-trimester EFW | 21 | < 0.01 | ||||||||||
< 25th Percentile | 12 | 2.5 | 1 | 0.3 | 11 | 3.5 | 1 | 1.6 | 10 | 3.4 | ||
25-75th Percentile | 194 | 40.9 | 8 | 2.7 | 58 | 18.5 | 23 | 37.7 | 165 | 56.5 | ||
75th Percentile | 56 | 11.8 | 0 | 0.0 | 14 | 4.5 | 8 | 13.1 | 40 | 13.7 | ||
Missing | 212 | 44.7 | 290 | 97.0 | 230 | 73.5 | 29 | 47.5 | 77 | 26.4 |