Table 1.
Characteristics of the study subgroups.
|
Incidental findings n (%) = 13 (7.4) |
Hemorrhage n (%) = 12 (6.9) |
SDH n (%) = 10 (5.7) |
IPH n (%) = 4 (2.3) |
No findings n (%) = 162 (93) |
|
|---|---|---|---|---|---|
| GENDER | |||||
| Male (%) | 6 (46) | 6 (50) | 5 (50) | 1 (25) | 88 (54) |
| Female (%) | 7 (54) | 6 (50) | 5 (50) | 3 (75) | 74 (46) |
| Birth weight (g) [mean (SD)] | 3427 (476) | 3448 (490) | 3465 (370) | 3446 (689) | 3531 (432) |
| Birth height (cm) [mean (SD)] | 50.0 (2.1) | 50.2 (2.2) | 50.8 (1.0) | 49.5 (3.8) | 50.5 (1.8) |
| Head circumference (cm) [median (MAD)] | 34.8 (1.3) | 34.9 (1.2) | 34.9 (1.3) | 34.8 (0.6) | 35.1 (1.3) |
| Age at imaging [median (MAD)] from due date (days) | 21.0 (4.4)* p = 0.014 |
21.5 (4.4)* p = 0.042 |
22.0 (3.0) | 19.5 (7.4) | 25.0 (7.4) |
| From date of birth (days) | 23.0 (5.9)* p = 0.025 |
22.0 (5.9)* p = 0.019 |
22.0 (5.9)* p = 0.043 |
23.5 (2.2) | 26.0 (7.4) |
| LENGTH OF PREGNANCY | |||||
| Weeks [median (MAD)] | 40.0 (0.0) | 40.0 (0.0) | 40.0 (0.0) | 43.5 (0.7) | 39.5 (0.7) |
| Days [mean (SD)] | 281 (4.4) | 282 (4.4) | 282 (3.7) | 282 (5.9) | 280 (8.2) |
| MODE OF DELIVERY | |||||
| Spontaneous vaginal delivery (%) | 9 (69.2) | 8 (66.7) | 6 (60) | 4 (100) | 116 (71.6) |
| Assisted delivery (vacuum) (%) | 4 (30.8)* p = 0.04 |
4 (33.3)* p = 0.029 |
4 (40)* p = 0.012 |
0 | 17 (10.5) |
| Section (%) | 0 | 0 | 0 | 0 | 29 (17.9) |
| LENGTH OF DELIVERY | |||||
| Total (min) [median (MAD)] | 462 (312) | 458 (303) | 418 (266.9) | 466 (310) | 448 (288) |
| Cervical dilation (min) [median (MAD)] | 416 (285) | 400 (245) | 383 (252) | 435 (274) | 415 (274) |
| Active labor (min) [median (MAD)] | 31.0 (17.8) | 31.0 (22.2) | 34.0 (26.7) | 27.0 (13.3) | 23.0 (23.7) |
| Primigravida (%) [median (MAD)] | 6 (46.2) | 6 (50.0) | 6 (60.0) | 0 (0.0) | 66 (40.7) |
| Apgar score 1 min [median (MAD)] | 9.0 (0.0) | 9.0 (0.0) | 9.0 (0.0) | 9.0 (0.0) | 9.0 (0.0) |
| Apgar score 5 min [median (MAD)] | 9.0 (0.0) | 9.0 (0.0) | 9.0 (0.0) | 9.0 (0.0) | 9.0 (0.0) |
| Artery pH [mean (SD)] | 7.2 (0.1) | 7.2 (0.1) | 7.2 (0.1) | 7.3 (0.1) | 7.3 (0.1) |
| ANESTHETICS | |||||
| Epidural/spinal (%) | 8 (61.5) | 7 (58.3) | 5 (50.0) | 3 (75.0) | 95 (58.6) |
| No anesthetics/mild anesthetics (%) | 4 (30.8) | 4 (33.3) | 4 (40.0) | 0 | 65 (40.1) |
| NA | 1 (7.7) | 1 (8.3) | 1 (10.0) | 1 (25.0) | 2 (1.2) |
| Oxytocin induction (%) | 5 (41.7) | 4 (36.4) | 2 (22.2) | 2 (66.7) | 60 (37.5) |
| NA | 1 | 1 | 1 | 1 | 2 |
SDH or IPH, Hemorrhage; SDH, subdural hemorrhage; IPH, intraparenchymal hemorrhage; SD, standard deviation; MAD, mean absolute deviation (scaled by a factor k = 1.4826); NA, not available. Statistically significant differences between groups of no findings and groups with the indicated finding (all incidental findings, hemorrhages, subdural hemorrhages, and intraparenchymal hemorrhages) are marked with *.