Table 4.
Comparison of included and excluded survey respondents.
| Variables | Excluded Participants N = 2289 |
Included Participants N = 8469 |
Chi-Square p-value |
|---|---|---|---|
| Frequency (%) | Frequency (%) | ||
|
Preterm births |
|||
| No | 2,081 (90.6) | 7,727 (91.1) | |
| Yes | 208 (9.4) | 742 (8.9) | |
| Missing | 0 | 0.33 | |
|
Maternal education |
|||
| <HS | 428 (30.0) | 1,448 (21.6) | |
| HS | 458 (26.1) | 1,792 (23.0) | |
| Some college and college grad + | 820 (43.8) | 5,229 (55.4) | |
| Missing | 583 | <0.01 | |
|
Mother’s race/ethnic group |
|||
| White | 394 (11.4) | 2,245 (19.6) | |
| Hispanic | 830 (65.8) | 2,849 (59.1) | |
| Black | 333 (6.2) | 1,432 (7.7) | |
| Asian/Pacific Islander | 274 (11.9) | 1,705 (13.0) | |
| Native American/other/unknown | 458 (4.7) | 238 (0.6) | |
| Missing | 0 | <0.01 | |
|
Mother’s age |
|||
| <20 years old | 410 (7.8) | 1,490 (7.3) | |
| 20–29 years old | 815 (43.2) | 2,811 (42.3) | |
| 30+ years old | 1,064 (48.9) | 4,168 (50.4) | |
| Missing | 0 | 0.05 | |
|
Marital status |
|||
| Married | 1,147 (53.4) | 4,745 (57.9) | |
| Not married | 1,018 (46.7) | 3,724 (42.1) | |
| Missing | 124 | 0.01 | |
| Insurance status | |||
| No insurance | 619 (38.6) | 2,082 (32.6) | |
| Had insurance | 1,638 (61.4) | 6,387 (67.4) | |
| Missing | 32 | 0.01 | |
|
Smoking during pregnancy |
|||
| No | 2040 (97.7) | 8,203 (97.8) | |
| Yes | 70 (2.3) | 266 (2.2) | |
| Missing | 179 | 0.68 | |
|
Passive smoking during pregnancy |
|||
| No | 1,979 (86.4) | 7,713 (91.8) | |
| Yes | 310 (13.6) | 756 (8.6) | |
| Missing | 0 | <0.01 | |
|
Substance abuse during pregnancy |
|||
| No | 2,009 (97.5) | 8,304 (98.5) | |
| Yes | 63 (2.5) | 165 (1.5) | |
| Missing | 217 | <0.01 | |
|
Pre-pregnancy conditions |
|||
| No | 1,652 (71.2) | 6,194 (73.8) | |
| Yes | 637 (28.8) | 2275 (26.2) | |
| Missing | 0 | 0.35 | |
|
Economic Hardship Index (EHI) |
|||
| EHI Quartile 1 | 241 (18.2) | 2,203 (20.2) | |
| EHI Quartile 2 | 328 (23.3) | 2,049 (26.3) | |
| EHI Quartile 3 | 255 (21.3) | 2,062 (20.2) | |
| EHI Quartile 4 | 313 (37.2) | 2,155 (33.3) | |
| Missing | 1152 | <0.01 | |
|
Mothers’ perception of neighborhood Quality |
|||
| Good quality | 2,061 (95.4) | 8,123 (96.2) | |
| Poor quality | 91 (4.5) | 346 (3.84) | |
| Missing | 137 | 0.76 | |
|
Maternal resilience |
|||
| High maternal resilience | 1,921 (91.9) | 7,827 (92.5) | |
| Low maternal resilience | 169 (8.1) | 642 (7.5) | |
| Missing | 199 | 0.44 |