International Scholarly Research Notices / 2014 / Article / Tab 5

Research Article

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

Table 5

Risk factors associated with preterm birth.

Risk factorsCases ( ) 
(%)
Controls ( ) 
(%)
valueOdds ratio (95% CI)

Gestational hypertension33 (21.4)26 (7.8)<0.0013.23 (1.85–5.63)
Height <1.50 m26 (16.8)32 (9.6)0.021.96 (1.12–3.42)
Preterm rupture of membranes (PROM)27 (17.5)21 (6.3)<0.0013.17 (1.73–5.81)
Fetal distress23 (14.9)53 (15.9)0.790.93 (0.55–1.59)
Oligo-/polyhydramnios19 (12.3)23 (6.9)0.0461.90 (1.00–3.61)
Uterine scar16 (10.4)27 (8.1)0.401.32 (0.69–2.52)
Infection15 (9.7)25 (7.5)0.401.33 (0.68–2.61)
Threatened abortion14 (9.1)11 (3.3)<0.012.94 (1.30–6.63)
Failed induction14 (9.1)45 (13.5)0.170.64 (0.34–1.21)
Twin gestation13 (8.4)04 (1.2)<0.0017.60 (2.44–23.73)
Gestational diabetes mellitus (GDM)13 (8.4)27 (8.1)0.901.05 (0.53–2.09)
Malpresentation13 (8.4)14 (4.2)0.062.10 (0.97–4.60)
Threatened preterm08 (5.2)07 (2.1)0.092.56 (0.91–7.91)
Maternal disease05 (3.3)06 (1.8)0.321.83 (0.55–6.11)
Hyperemesis gravidarum05 (3.3)10 (3.0)0.881.09 (0.37–3.24)
Cephalopelvic disproportion03 (2.0)13 (3.9)0.260.49 (0.14–1.75)
Antepartum haemorrhage (APH)05 (3.3)04 (1.2)0.122.77 (0.73–10.46)
Anemia03 (2.0)05 (2.0)0.721.31 (0.31–5.54)
Others*007 (2.1)

Safe confinement, baby hydrocephalus with absent posterior vault, bladder injury, and fetal polycystic kidneys.