|
Outcome
|
Perinatal death [n = 548(%)]
|
Crude RR
|
P-value
|
|---|
|
Yes/No (%)
|
(95%CI)
|
|---|
|
Mean fetal weight (Kg)
|
–
|
0.95 (0.52–1.71)
|
0.844
|
|
< 2.5
|
2/14 (14.3)
|
1.36 (0.36–5.16)
|
0.660
|
|
2.5–3.5
|
34/335 (61)
|
1
|
–
|
|
> 3.5
|
20/143 (14)
|
1.33 (0.79–2.24)
|
0.970
|
|
Cord blood lactate at birth, mmol/L
|
|
Umbilical arterya
|
–
|
1.19 (1.15–1.24)
|
< 0.001
|
|
Normal lactate (<=4.8)
|
1/110 (0.9)
|
1
|
–
|
|
High lactate (> 4.8)
|
55/382 (14.4)
|
13.97 (1.95–100.03)
|
0.006
|
|
Umbilical veina
|
–
|
1.24 (1.18–1.30)
|
< 0.001
|
|
Normal lactate (<=4.8)
|
1/132 (0.8)
|
1
|
–
|
|
High lactate (> 4.8)
|
55/360 (15.3)
|
17.6 (2.46–126.4)
|
0.003
|
|
One-minute Apgar Score
|
|
Normal (> =7)
|
4/90 (4.4)
|
1
|
–
|
|
Abnormal (< 7)
|
52/402 (12.9)
|
37.17 (13.68–101.01
|
< 0.001
|
|
Five-minute Apgar score
|
|
Normal (> =7)
|
6/481 (1.2)
|
1
|
–
|
|
Abnormal (< 7)
|
50/11 (454)
|
66.53 (29.76–148.75)
|
< 0.001
|
- a Median and interquartile range (N = 490)
