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 ratio | 95% CI |
| | Preexisting medical conditions | | | | | | Diabetes | 01 (0.7) | 0 | — | — | | Hypertension | 01 (0.7) | 01 (0.0) | 2.18 | 0.14–35.03 | | Asthma or bronchitis | 03 (1.9) | 06 (1.8) | 1.09 | 0.27–4.40 | | Thyroid disorder | 03 (1.9) | 05 (1.5) | 1.31 | 0.31–5.54 |
| | Family history | | | | | | Diabetes | 19 (12.3) | 38 (11.4) | 1.10 | 0.61–1.97 | | Hypertension | 21 (13.6) | 54 (16.1) | 0.82 | 0.48–1.41 |
| | Complications during previous pregnancies | | | | | | Pregnancy induced hypertension | 08 (5.2) | 04 (1.2) | 4.52 | 1.34–15.25 | | Gestational diabetes mellitus | 01 (0.7) | 02 (0.6) | 1.09 | 0.10–12.06 | | Oligohydramnios | 01 (0.7) | 03 (0.9) | 0.72 | 0.07–6.99 | | Cephalopelvic disproportion | 03 (1.9) | 06 (1.8) | 1.09 | 0.27–4.40 | | Failed induction | 01 (0.7) | 11 (3.3) | 0.19 | 0.03–1.50 | | Fetal distress | 03 (1.9) | 08 (2.4) | 0.81 | 0.21–3.10 | | Premature rupture of membranes | 0 | 01 (0.3) | — | — | | Placenta previa | 05 (3.2) | 01 (0.3) | 11.17 | 1.29–96.48 |
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