Table 1.

Outcome measurements for all infants born with a gestational age between 24⁺⁰ and 26⁺⁶ weeks between 2011 and 2017, compared with infants born between 2007 and 2009.

	24 weeks			25 weeks			26 weeks			Total cohort
	2007–2009	2011–2017	P value	2007–2009	2011–2017	P value	2007–2009	2011– 2017	P value	2007–2009	2011–2017	P value
	n=406	n=1013		n=442	n=999		n=522	n=1300		n=1370	n=3312
Live born	255 (62.8)	697 (68.8)	0.035*	328 (74.2)	757 (75.8)	0.569	405 (77.6)	1115 (85.8)	<0.001*	988 (72.1)	2569 (77.6)	<0.001*
Admitted to NICU	69 (27.1)	480 (68.9)	<0.001*	264 (80.5)	625 (82.6)	0.465	361 (89.1)	1016 (91.1)	0.283	694 (70.2)	2121 (82.6)	<0.001*
Survival (% admissions)	32 (46.4)	240 (50.0)	0.664	181 (68.6)	445 (71.2)	0.479	278 (77.0)	833 (82.0)	0.053	491 (70.7)	1518 (71.6)	0.714
Survival (% live born)	32 (12.5)	240 (34.4)	<0.001*	181 (55.2)	445 (58.8)	0.300	278 (68.6)	833 (74.7)	0.024*	491 (49.7)	1518 (59.1)	<0.001*

*Significant at a 0.05 level.

NICU, neonatal intensive care unit.