Table 1.
Maternal and Pregnancy Characteristics of Control Subjects by Any Reported Injury During Pregnancy, Iowa Health in Pregnancy Study, 2002–2005 (n=1,488)
| Injured at any time during pregnancy | |||
|---|---|---|---|
| Maternal/pregnancy characteristics | Yes (n=80) n (column %) | No (n=1,408) n (column %) | p-valuea |
| Maternal age | |||
| 18–19 | 4 (5.0) | 74 (5.3) | 0.0014 |
| 20–24 | 30 (37.5) | 270 (19.2) | |
| 25–29 | 21 (26.3) | 508 (36.1) | |
| 30–34 | 14 (17.5) | 388 (27.6) | |
| 35+ | 11 (13.8) | 168 (11.9) | |
| Maternal race | |||
| White | 63 (78.8) | 1,201 (85.3) | 0.1111 |
| Nonwhite | 17 (21.3) | 207 (14.7) | |
| Maternal education | |||
| ≤ High school | 25 (31.3) | 255 (18.1) | 0.0144 |
| Some college | 26 (32.5) | 459 (32.6) | |
| College graduate | 17 (21.3) | 476 (33.8) | |
| Master or professional | 12 (15.0) | 218 (15.5) | |
| Marital status | |||
| Married | 50 (65.8) | 1,113 (81.4) | 0.0002 |
| Not married, in a relationship | 14 (18.4) | 181 (13.2) | |
| No partner | 12 (15.8) | 73 (5.3) | |
| Prepregnancy body mass index | |||
| <18.5 | 3 (3.8) | 92 (6.5) | 0.7476 |
| 18.5–24.9 | 43 (53.8) | 770 (54.7) | |
| 25.0–29.9 | 19 (23.8) | 312 (22.2) | |
| 30+ | 15 (18.8) | 234 (16.6) | |
| Smoked at any time during pregnancy | |||
| Yes | 27 (33.8) | 289 (20.5) | 0.0049 |
| No | 53 (66.3) | 1,119 (79.5) | |
| Drank alcohol at any time during pregnancy | |||
| Yes | 30 (37.5) | 516 (36.7) | 0.8889 |
| No | 50 (62.5) | 889 (63.3) | |
| Parity | |||
| Primipara (0) | 39 (48.8) | 654 (46.5) | 0.0578 |
| 1 | 17 (21.3) | 454 (32.3) | |
| 2+ | 24 (30.0) | 298 (21.2) | |
| Pregnancy intention | |||
| Wanted to be pregnant | 31 (38.8) | 861 (61.2) | 0.0005 |
| Wanted later | 34 (42.5) | 339 (24.1) | |
| Did not want | 7 (8.8) | 106 (7.5) | |
| Didn't care | 8 (10.0) | 100 (7.1) | |
| Pregnancy excitement following conception | |||
| Excited | 52 (65.8) | 1,110 (78.9) | 0.0216 |
| Okay | 16 (20.3) | 186 (13.2) | |
| Not sure/didn't want | 11 (13.9) | 111 (7.9) | |
| Household income ($) | |||
| 0–31,000 | 31 (41.9) | 325 (24.5) | 0.0102 |
| 31,001–56,000 | 14 (18.9) | 343 (25.8) | |
| 56,001–80,000 | 15 (20.3) | 336 (25.3) | |
| 80,001+ | 14 (18.9) | 325 (24.5) | |
| Subject income ($) | |||
| 0–5,000 | 27 (34.2) | 346 (25.2) | 0.2529 |
| 5,001–19,000 | 21 (26.6) | 347 (25.2) | |
| 19,001–33,000 | 16 (20.3) | 349 (25.4) | |
| 33,001+ | 15 (19.0) | 334 (24.3) | |
| Poverty threshold | |||
| Poor/near poor | 19 (25.7) | 194 (14.6) | 0.0262 |
| Low income | 12 (16.2) | 180 (13.5) | |
| Medium income | 25 (33.8) | 460 (34.6) | |
| High income | 18 (24.3) | 495 (37.3) | |
| Worked during pregnancy | |||
| Yes | 58 (74.4) | 1,100 (79.2) | 0.3082 |
| No | 20 (25.6) | 289 (20.8) | |
a
Column percent totals may be greater than 100% due to rounding.