A proposed approach in defining population-based rates of major injury from a trauma registry dataset: Delineation of hospital catchment areas (I)

Table 3 Capture rate for all major trauma injuries (excluding fracture of femur) by year, NSRI Stoke on Trent, 1996–2004

Year	HES cases	TARN cases	Capture rate (%) *
1996/1997	714	835 (714**)	100.0**
1997/1998	987	789	80.0
1998/1999	939	768	81.8
1999/2000	971	772	79.5
2000/2001	943	421	44.6
2001/2002	891	667	74.9
2002/2003	692	632	91.3
2003/2004	758	295	38.9
Total	6895	5058**	73.4

Source: Trauma Audit and Research Network & Hospital Episode Statistics (Health and Social Care Information Centre)
*expressed as percentage of yearly number of HES cases that were detected in TARN database
** after correction for overreporting made by excluding 121 cases from 835 TARN cases in 1996/1997 apparently not admitted to NSRI according to HES data but which appeared in the TARN database

ISSN: 1472-6963