Evaluation of the injury impairment scale (IIS) in predicting impairment following major head injury

Ross, Steven E.; O'Malley, Keith F.; Ross, Eric A.; Spettell, Claire; Stein, Sherman C.

Affiliations

¹Department of Surgery University of Medicine and Dentistry of New Jersey/Robert Wood Johnson Medical School, Camden, New Jersey

²Department of Biostatistics, Fox Chase Cancer Center, Philadelphia, Pennsylvania

³Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania

Abstract

Prediction of functional outcome following major brain injury is important in planning for care, and advising patients' families regarding the potential for disability. The IIS has been formulated, through expert consensus, to provide some basis for that prediction. We compared predicted with actual outcome in a group of 326 patients aged 20 to 54 years, with major head injury, without concomitant major extracranial injury. IIS prediction was accurate in only 52% of cases. It was concluded that IIS was not valid for predicting functional outcome in this population.

Cited Works (9)

Year	Entry
1977	Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics. March 1977;33(1):159-174.
1994	von Koch M, Nygren Å, Tingvall C. Validation of the new injury impairment scale (IIS). In: 38th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). September 21-23, 1994; Lyon, France.123-138.
1974	Baker SP, O'Neill B, Haddon W Jr, Long WB. The injury severity score: a method for describing patients with multiple injuries and evaluating emergency care. J Trauma. March 1974;14(3):187-196.
1974	Teasdale G, Jennett B. Assessment of coma and impaired consciousness: a practical scale. Lancet. July 13, 1974;2(7872):81-84.
1990	The Abbreviated Injury Scale-1990 Revision. Des Plaines, IL: Association for the Advancement of Automotive Medicine (AAAM); 1990.
1984	Hirsch AE, Eppinger RH. Impairment scaling from the abbreviated injury scale. In: 28th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 8-10, 1984; Denver, CO.209-224.
1989	Yates DW, Heath D, Mars E, Taylor RJ. A system for measuring the severity of temporary and permanent disability after injury. In: 33rd Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 2-4, 1989; Baltimore, MD.219-229.
1994	Campbell F, Woodford M, Yates DW. A comparison of injury impairment scale scores and physician's estimates of impairment following injury to the head, abdomen and lower limbs. In: 38th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). September 21-23, 1994; Lyon, France.139-148.
1990	States JD, Viano DC. Injury impairment and disability scales to assess the permanent consequences of trauma. Accid Anal Prev. April 1990;22(2):151-159.