Table 4.

Comparison between PATS (clinical) and PAS (administrative) data at University Hospital Birmingham in the financial years 2012–2015

Procedure group	Procedure	Match negative	Match positive	Mismatch	Total match (%)
CABG	CABG	941	1118	1	100
Valve	Aortic	1340	679	41	94
	TAVI	1923	124	13	91
	Mitral repair	1913	121	26	82
	Mitral replace	1932	104	24	81
	Pulmonary	2010	40	10	80
	Tricuspid	1903	148	9	94
Major aortic	Major aortic	1818	220	22	91
Transplant	Transplant	1993	67	0	100
Other	Other procedures	1676	267	117	70
	AF surgery	1939	85	36	70
	ASD closure	2017	19	24	44
	VSD closure	2047	4	9	31
	LV anneurysectomy	2047	1	12	8
	Myectomy	2049	3	8	27
	Primary VAD	2023	31	6	84
	Epicardial pacemaker vs PAS w/temp flag	1717	4	339	1
	Epicardial pacemaker vs PAS w/no temp flag	2038	4	18	18

Match negative, procedure in neither PATS nor PAS; Match positive, procedure in PATS and PAS; Mismatch, procedure in PATS only or PAS only; Total match, positive/(positive+mismatch).

AF, atrial fibrillation; ASD, atrial septal device; CABG, coronary artery bypass grafting; LV, left ventricle; PAS, Patient Administrative System; PATS, Patient Administrative and Tracking System; TAVI, transcatheter aortic valve implantation; VAD, ventricular assist defect; VSD, ventricular septal defect.