International Scholarly Research Notices / 2014 / Article / Tab 4

Research Article

A Case-Control Study on Risk Factors for Preterm Deliveries in a Secondary Care Hospital, Southern India

Table 4

Preexisting medical conditions among the mothers.

Variables Cases ( )
(%)
Controls ( )
(%)
Odds ratio95% CI

Preexisting medical conditions
 Diabetes01 (0.7)0
 Hypertension01 (0.7)01 (0.0)2.180.14–35.03
 Asthma or bronchitis03 (1.9)06 (1.8)1.090.27–4.40
 Thyroid disorder03 (1.9)05 (1.5)1.310.31–5.54

Family history
 Diabetes19 (12.3)38 (11.4)1.100.61–1.97
 Hypertension21 (13.6)54 (16.1)0.820.48–1.41

Complications during previous pregnancies
 Pregnancy induced hypertension08 (5.2)04 (1.2)4.521.34–15.25
 Gestational diabetes mellitus01 (0.7)02 (0.6)1.090.10–12.06
 Oligohydramnios01 (0.7)03 (0.9)0.720.07–6.99
 Cephalopelvic disproportion 03 (1.9)06 (1.8)1.090.27–4.40
 Failed induction01 (0.7)11 (3.3)0.190.03–1.50
 Fetal distress03 (1.9)08 (2.4)0.810.21–3.10
 Premature rupture of membranes001 (0.3)
 Placenta previa05 (3.2)01 (0.3)11.171.29–96.48