Table 3: Neonatal outcomes after 1–2 previous cesarean sections (CSs), by planned mode of delivery and number of previous vaginal births* .
|
|
No previous vaginal deliveries |
≥1 Previous vaginal deliveries |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Neonatal outcome | Planned vaginal, no. (%) n = 7 417 |
Planned CS, no. (%) n = 20 212 |
RR (95% CI) | Planned vaginal, no. (%) n = 3 634 |
Planned CS, no. (%) n = 1 639 |
RR (95% CI) | ||||||||
| Life-threatening or death | ||||||||||||||
| Intrapartum stillbirth |
2 |
(0.03) |
0 |
|
– |
0 |
|
0 |
|
– |
||||
| Death at ≤ 7 d |
3 |
(0.04) |
2 |
(0.01) |
4.09 |
(0.68–24.46) |
0 |
|
0 |
|
– |
|||
| Death at 8–28 d |
0 |
|
6 |
(0.03) |
– |
0 |
|
0 |
|
– |
||||
| Admission to neonatal intensive care nursery† |
40 |
(0.5) |
71 |
(0.3) |
1.54 |
(1.04–2.26) |
8 |
(0.2) |
8 |
(0.5) |
0.45 |
(0.17–1.20) |
||
| Ventilation required |
18 |
(0.2) |
34 |
(0.2) |
1.40 |
(0.79–2.47) |
6 |
(0.2) |
6 |
(0.2) |
0.45 |
(0.15–1.40) |
||
| Apgar score of ≤ 3 at 5 min |
13 |
(0.2) |
3 |
(0.02) |
8.85 |
(2.89–27.14) |
1 |
(0.03) |
0 |
|
– |
|||
| Hypoxic ischemic encephalopathy |
1 |
(0.01) |
0 |
|
– |
0 |
|
0 |
|
– |
||||
| Intraventricular hemorrhage |
0 |
|
0 |
|
– |
0 |
|
0 |
|
– |
||||
| ≥ 1 Life-threatening outcome |
61 |
(0.8) |
100 |
(0.5) |
1.65 |
(1.20–2.26) |
14 |
(0.4) |
11 |
(0.7) |
0.57 |
(0.26–1.26) |
||
| Non–life threatening | ||||||||||||||
| Admission to observation nursery‡ |
238 |
(3.2) |
772 |
(3.8) |
0.84 |
(0.73–0.97) |
96 |
(2.6) |
84 |
(5.1) |
0.52 |
(0.39–0.69) |
||
| > 24 h of oxygen required |
30 |
(0.4) |
129 |
(0.6) |
0.63 |
(0.43–0.94) |
10 |
(0.3) |
13 |
(0.8) |
0.35 |
(0.15–0.79) |
||
| Apgar score of 4–6 at 5 min |
81 |
(1.1) |
45 |
(0.2) |
4.9 |
(3.41–7.05) |
30 |
(0.8) |
5 |
(0.3) |
2.7 |
(1.05–6.95) |
||
| Birth trauma |
26 |
(0.3) |
18 |
(0.09) |
3.94 |
(2.16–7.18) |
18 |
(0.5) |
3 |
(0.2) |
2.71 |
(0.80–9.17) |
||
| ≥ 1 Non–life threatening outcome | 333 | (4.5) | 887 | (4.4) | 1.02 | (0.90–1.16) | 143 | (3.9) | 96 | (5.9) | 0.67 | (0.52–0.86) | ||
Note: CI = confidence interval, RR = relative risk. *Excludes infants with congenital anomalies. †Baby had high acuity or was at risk of high acuity, and required multispecialty care. ‡Baby required increased observation and acute management.