Table 3.

IVH and survival rate classified from birth weight and gestational age before and after implementing the NCB.

	n		IVH Rate		Severe IVH or Death before CUS		Survival		Survival without IVH
	n		Percentage		Percentage		Percentage		Percentage
	Before	After	Before	After	Before	After	Before	After	Before	After
(a)
<500 g	10	12	30.0%	58.3%	20.0%	41.7%	60.0%	50.0%	40.0%	33.3%
500–749 g	20	25	45.0%	36.0%	15.0%	12.0%	90.0%	92.0%	50.0%	56.0%
750–999 g	41	31	26.8%	19.4%	14.6%	9.7%	87.8%	93.5%	70.7%	80.6%
1000–1249 g	41	31	14.6%	22.6%	7.3%	3.2%	97.6%	100.0%	82.9%	77.4%
1250–1499 g	10	8	30.0%	0.0%	10.0%	0.0%	100.0%	100.0%	70.0%	100.0%
<1000 g	71	68	32.4%	32.4%	15.5%	16.2%	84.5%	85.3%	60.6%	63.2%
<1250 g	112	99	25.9%	29.3%	12.5%	12.1%	89.3%	89.9%	68.8%	67.7%
<1500 g	122	107	26.2%	27.1%	12.3%	11.2%	90.2%	90.7%	68.9%	70.1%
(b)
<24 w	11	8	36.4%	62.5%	27.3%	37.5%	63.6%	50.0%	45.5%	25.0%
24–25 w	16	18	56.3%	61.1%	25.0%	27.8%	81.3%	77.8%	37.5%	27.8%
26–27 w	26	27	34.6%	22.2%	19.2%	11.1%	96.2%	96.3%	65.4%	77.8%
28–29 w	45	31	13.3%	22.6%	6.7%	3.2%	91.1%	96.8%	80.0%	77.4%
≥30 w	24	23	16.7%	0.0%	0.0%	0.0%	100.0%	100.0%	83.3%	100.0%
<28 w	53	53	41.5%	41.5%	22.6%	20.8%	84.9%	83.0%	52.8%	52.8%
<30 w	98	84	28.6%	34.5%	15.3%	14.3%	87.8%	88.1%	65.3%	61.9%
Total	122	107	26.2%	27.1%	12.3%	11.2%	90.2%	90.7%	68.9%	70.1%

NCB —neonatal care bundle; IVH—germinal matrix intraventricular hemorrhage; CUS—cranial ultrasound; w—weeks.