Table 1

Number and percentage of live born babies born at 20–25 complete weeks' gestational age by outcome in 2001–2003 cohort

	Gestational age (complete weeks)
	20–22 weeks			23 weeks			24 weeks			25 weeks			All
	n	% of live births	% of babies admitted to NNU	n	% of live births	% of babies admitted to NNU	n	% of live births	% of babies admitted to NNU	n	% of live births	% of babies admitted to NNU	N	% of live births	% of babies admitted to NNU
Live births	63			62			93			129			347
Admitted to NNU	4	(6)		29	(47)		78	(84)		119	(92)		230	(66)
Discharged alive from neonatal care	0	(0)	(0)	2	(3)	(7)	31	(33)	(40)	72	(56)	(61)	105	(30)	(46)
Alive at 2 years corrected age				2	(3)	(7)	31	(33)	(40)	70	(54)	(59)	103	(30)	(46)
Alive at 2 years with no severe disability (Audit commission criteria)				0	(0)	(0)	16^*	(18)	(21)	45^†	(35)	(38)	61	(18)	(27)
Alive at 2 years with no severe disability (Oxford minimum dataset criteria)				0	(0)	(0)	20	(22)	(26)	45	(35)	(38)	65	(19)	(29)

↵* Two babies known to be alive at 2 years corrected age but not assessed are neither included in this total nor to calculate the percentage.
↵† One baby known to be alive at 2 years corrected age but not assessed is neither included in this total nor to calculate the percentage.
NNU, neonatal unit.