Injury severity score
values that are below or equal to 15 represent minor trauma, those that are above 15 represent major trauma (11, 12).
Trauma and Injury Severity Score
(TRISS) in head injury patients.
AIS: Abbreviated Injury Scale, ED: emergency department, ETI: endotracheal intubation, GCS: Glasgow Coma Scale Score, ISS: Injury Severity Score
, Ps: probability of survival, RTS: Revised Trauma Score, SD: standard deviation.
Patient clinical characteristics Duration of Up to 7 days 16 (34.8%) hospitalization More than 7 days 30 (65.2%) Fatal outcome 8 (10.5%) Outcome: Survivors 68 (89.5%) ISS 40.5[+ or -]12.8 Day 1 18.9[+ or -]10.9 Day 2 18.9[+ or -]14.1 APACHE II Day 3 17.8[+ or -]12.6 Day 7 14.1[+ or -]5.9 Day 1 12.9[+ or -]3.5 Day 2 12.9[+ or -]3.4 SOFA Day 3 12.6[+ or -]3.8 Day 7 11.1[+ or -]2.1 Admission 43.1[+ or -]46.3 24 h 44.7[+ or -]76.9 Erythropoietin 48 h 22.9[+ or -]38.8 72 h 18.6[+ or -]30.6 Day 7 8.4[+ or -]8.7 Transfusion 2598.5[+ or -]4282.4 mL ISS = Injury Severity Score
; APACHE II = Acute Physiology and Chronic Health Evaluation II; SOFA = Sequential Organ Failure Assessment Table 3.
LOS in hospital increased as the injury severity score
The Injury Severity Score
(ISS), which was derived from these scales, assigned a single value of overall injury severity that correlated with survival in the multiply injured blunt-trauma patient.
 AIS functions include the popular Injury Severity Score
(ISS), the New Injury Severity Score
(NISS) and the Anatomic Profile Score, all of which have varied qualitative and quantitative properties.
The ability of our aged patient-specific risk tool to outperform the widely used Trauma and Injury Severity Score
(TRISS) index to predict inpatient mortality within a nationwide patient cohort confirms its utility.
The data were reviewed regarding the demographics, time of presentation, place of reference, Acute Physiology and Chronic Health Evaluation II (APACHE II) score and Injury Severity Score
(ISS), surgical procedures, complications, length of stay and mortality.
Patient severity was established using the injury severity score
(ISS) to stage the injury severity into the following three categories: mild injuries with an ISS less than 9, moderate injuries with an ISS from 9-15, and severe injuries with an ISS equal to or greater than 1513, (14).
Bodily injury severity was measured using the Injury Severity Score
(ISS) derived from the Abbreviated Injury Scale .
Secondary outcomes included changes in ORP values over time after injury, TBI diagnosis, and degree of severity (Injury Severity Score
(ISS) and GCS).