Table 3:
Univariate Analysis: Unadjusted Relative Risks for Abnormalities in Pregnancies with a Right Absent Umbilical Artery Compared with those with a Left Absent Umbilical Artery.
| Abnormality | Cohort (n=405) | Right AUA (n=164) | Left AUA (n=241) | Unadjusted RR (95% CI) | P Value |
|---|---|---|---|---|---|
| IUGR | 67(15.5%) | 45(27.4%) | 22(9.13%) | 3.006(1.879–4.808) | < 0.001 |
| Head | 62(15.3%) | 35(21.3%) | 27(11.2%) | 1.905(1.201–3.021) | 0.008 |
| Neck | 24(5.9%) | 16(9.76%) | 8(3.32%) | 2.939(1.288–6.708) | 0.013 |
| Face | 31(7.7%) | 27(16.5%) | 4(1.66%) | 9.919(3.537–27.816) | < 0.001 |
| Spine | 25(6.2%) | 20(12.2%) | 5(2.07%) | 5.878(2.251–15.347) | < 0.001 |
| Cardiac | 53(13.1%) | 30(18.3%) | 23(9.54%) | 1.917(1.156–3.178) | 0.016 |
| Other Thoracic | 17(4.2%) | 11(6.71%) | 6(2.49%) | 2.694(1.016–7.141) | 0.068 |
| Gastrointestinal | 34(8.4%) | 24(14.6%) | 10(4.15%) | 3.527(1.733–7.177) | < 0.001 |
| Genitourinary | 45(11.1%) | 22(13.4%) | 23(9.54%) | 1.406(0.811–2.436) | 0.291 |
| Upper Extremity | 27(6.7%) | 23(14.0%) | 4(1.66%) | 8.450(2.977–23.980) | < 0.001 |
| Lower Extremity | 38(9.4%) | 30(18.3%) | 8(3.32%) | 5.412(2.545–11.508) | < 0.001 |
| Abnormal Chromosomes | 22(16.2%) | 10(17.0%) | 12(15.6%) | 1.088(0.505–2.343) | 0.983 |
| Abnl Umbilical Artery Doppler | 16(7.0%) | 4(2.44%) | 12(4.98%) | 0.446(0.148–1.340) | 0.219 |
| Abnl PP Defects | 42(21.9%) | 23(28.0%) | 19(17.2%) | 1.624(0.950–2.776) | 0.107 |
| ≥ 2 abnormalities | 163(40.2%) | 83(50.6%) | 80(33.2%) | 1.525(1.206–1.927) | < 0.001 |
| Isolated SUA | 232(57.3%) | 80 (48.9%) | 152 (63.1%) | 0.773(0.643–0.930) | 0.006 |