The difference between ISS and NISS in a series of trauma patients in Brazil

Whitaker, Iveth Y.; Gennari, Terezinha D.; Whitaker, Aristarcho L.

Affiliations

¹Department of Nursing, Universidade Federal de São Paulo, São Paulo City, Brazil

²Centro Universitário das Faculdades Metropolitanas Unidas, Brazil

³Universidade de São Paulo, Brazil

Abstract

The difference between the ISS and NISS scores was determined for 1,533 inpatients consecutively admitted in 1998 in the Emergency Department of a University Hospital in São Paulo, Brazil. The average ISS was 12.49 ± 12.72, and the average NISS was 16.99 ± 17.60. The two predictive scores were identical in 47.75% of the patients and discrepant in 52.25%. In all cases of discrepant scores, the NISS was greater than ISS. NISS identified significantly more (42.47%) major trauma patients (score > 16) than ISS (34.18%) (p<0.001). For nonsurvivors the percentage of discrepant score was higher (75.68%) than for the survivors group (48.28%).

Cited Works (2)

Year	Entry
1997	Osler T, Baker SP, Long W. A modification of the Injury Severity Score that both improves accuracy and simplifies scoring. J Trauma. December 1997;43(6):922-926.
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.