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J Head Trauma Rehabil. 2014 Jan-Feb;29(1):E1-8. doi: 10.1097/HTR.0b013e318280d3e6.

Long-term survival after traumatic brain injury: a population-based analysis controlled for nonhead trauma.

Author information

1
Department of Physical Medicine and Rehabilitation (Dr Brown), Division of Epidemiology (Dr Leibson), Division of Biomedical Statistics and Informatics (Dr Mandrekar and Ms Ransom), Department of Neurology (Dr Mandrekar), and Department of Psychiatry and Psychology (Dr Malec), Mayo Clinic, Rochester, Minnesota; and Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine and Rehabilitation Hospital of Indiana, Indianapolis (Dr Malec).

Abstract

OBJECTIVE:

To examine the contribution of co-occurring nonhead injuries to hazard of death after traumatic brain injury (TBI).

PARTICIPANTS:

A random sample of Olmsted County, Minnesota, residents with confirmed TBI from 1987 through 1999 was identified.

DESIGN:

Each case was assigned an age- and sex-matched, non-TBI "regular control" from the population. For "special cases" with accompanying nonhead injuries, 2 matched "special controls" with nonhead injuries of similar severity were assigned.

MEASURES:

Vital status was followed from baseline (ie, injury date for cases, comparable dates for controls) through 2008. Cases were compared first with regular controls and second with regular or special controls, depending on case type.

RESULTS:

In total, 1257 cases were identified (including 221 special cases). For both cases versus regular controls and cases versus regular or special controls, the hazard ratio was increased from baseline to 6 months (10.82 [2.86-40.89] and 7.13 [3.10-16.39], respectively) and from baseline through study end (2.92 [1.74-4.91] and 1.48 [1.09-2.02], respectively). Among 6-month survivors, the hazard ratio was increased for cases versus regular controls (1.43 [1.06-2.15]) but not for cases versus regular or special controls (1.05 [0.80-1.38]).

CONCLUSIONS:

Among 6-month survivors, accounting for nonhead injuries resulted in a nonsignificant effect of TBI on long-term mortality.

PMID:
23381021
PMCID:
PMC4321729
DOI:
10.1097/HTR.0b013e318280d3e6
[Indexed for MEDLINE]
Free PMC Article
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