Indicator	Patient chart and maternity register
	% matching			Diff (z-test) DQA 1 & DQA2	Diff (z-test) DQA 1 & DQA3
	DQA1 (N=413)	DQA2 (N=447)	DQA3 (N=499)	P-value	P--value
Gestational age	34%	45%	47%	<0.001	<0.001
Birth weight	81%	85%	85%	0.118	0.107
Baby discharge status	65%	76%	76%	<0.001	<0.001
Date of delivery	80%	88%	88%	0.001	0.001