TY  - JOUR
PY  - 2005//
TI  - Validity of administrative data for characterizing traumatic brain injury-related hospitalizations
JO  - Brain injury
A1  - Shore, Andrew D.
A1  - McCarthy, Melissa L.
A1  - Serpi, Tracey
A1  - Gertner, Melanie
SP  - 613
EP  - 621
VL  - 19
IS  - 8
N2  - PRIMARY OBJECTIVE: To examine the validity of Maryland Hospital Discharge (MHD) data for identifying and characterizing traumatic brain injury (TBI)-related hospitalizations. METHODS: All TBI-related hospitalizations in 1999 were identified using MHD and Maryland Trauma Registry (MTR) data. In addition, a sample of records were abstracted to compare agreement between MHD and chart data. RESULTS: The MHD file identified fewer TBI cases (61%) compared to the MTR (95%). Overall, TBI-related hospitalization rates based on MHD were significantly fewer (95; 95% CI 92, 98) vs MHD and MTR (144; 95% CI 140, 147). There was good agreement between the MHD and chart data regarding skull fractures or intracranial lesions (kappa = 0.73 and 0.83, respectively), but poor agreement for neurologic abnormalities or amnesia. The MHD significantly underestimated TBI severity. CONCLUSIONS: TBI cases, especially mild ones, were under-reported by MHD data. MHD data are better at detecting anatomic injuries compared to TBI symptoms and sequella.
LA  - 
SN  - 0269-9052
UR  - http://dx.doi.org/
ID  - ref1
ER  -