A Retrospective Study on the Risk of Respiratory Distress Syndrome in Singleton Pregnancies with Preterm Premature Rupture of Membranes between 24+0 and 36+6 Weeks, Using Regression Analysis for Various Factors

Table 1

Univariate logistic analysis of various factors for preterm neonatal RDS.

Risk factor	Odds ratios	95 CI	p-value	Nr. of cases
PROM latency period	1,0035	(1,0009;1,0061)	0,009	168
Gestational age at birth	0,9100	(0,88;0,94)	<0,001	170
Abnormal UA PI	2,9600	(1,43;6,12)	0,003	169
Abnormal MCA PI	2,0500	(1,07;3,95)	0,031	169
Fetal distress	2,3300	(1,16;4,71)	0,018	170
Antenatal steroids use	0,4600	(0,34;0,64)	<0,001	170
Maternal HGB	0,6900	(0,5;0,96)	0,025	153
Intraventricular hemorrhage	6,5500	(1,44;29,82)	0,015	167
Congenital infection	4,6300	(1,8;11,94)	0,001	169
Anaemia	8,0000	(3,32;19,26)	<0,001	168
Neonatal PLT	0,9916	(0,9871;0,9961)	<0,001	150
Neonatal HGB	0,7500	(0,65;0,88)	<0,001	150
Neonatal RBC	0,3200	(0,19;0,55)	<0,001	150
Gender (female)	0,5200	(0,28;0,97)	0,039	170
Apgar score at 10th min	0,4000	(0,26;0,6)	<0,001	168
Apgar score at 5th min	0,3700	(0,24;0,56)	<0,001	168
Apgar score at 3rd min	0,4600	(0,34;0,63)	<0,001	168
Apgar score at 1st min	0,5200	(0,4;0,68)	<0,001	168
Birth weight	0,9975	(0,9967;0,9983)	<0,001	170