Table 3.

Risk factors associated with adverse outcomes

Variable	p-value	Odds ratio	Confidence interval
			Lower	Upper
Maternal outcomes
Gestational age 37–39+6 weeks	Reference
Gestational age 27–29+6 weeks	0.02	8.187	1.680	39.911
Platelet > 150 × 109/l	Reference
Platelet 0–49 × 109/l	0.001	46.429	17.778	121.253
Platelet 50–99 × 109/l	0.001	18.681	8.873	39.333
Platelet 100–149 × 109/l	0.002	4.147	1.655	10.396
Birth weight 2001–2500 g	Reference
Birth weight 0–5001 g	0.001	6.339	2.518	15.961
Birth weight 501–1000 g	0.001	5.164	2.099	12.700
Perinatal outcomes
Maternal complications-absent	Reference
Maternal complications-present	0.001	3.535	2.087	5.987
Platelet > 150 × 109/l	Reference
Platelet 0–49 × 109/l	0.001	3.690	1.752	7.775
Platelet 50–99 × 109/l	0.0001	2.952	1.639	5.317
Corticosteroids-not given	Reference
Corticosteroids-given	0.05	0.479	0.223	1.026
Birth weight 2001–2500 g	Reference
Birth weight 0–500 g	0.04	74.443	3.987	1390.00
Birth weight 501–1000 g	0.001	157.442	31.132	796.226
Birth weight 1001–1500 g	0.001	27.445	6.901	109.139
Birth weight 1501–2000 g	0.011	6.812	1.563	29.683