Table 2 Coefficients of adjusted TRISS, NTRISS-like, TRISS SpO2, and NTRISS-like SpO2 derived from the Derived Database for blunt and penetrating trauma. São Paulo–San Diego, 2006–2010
From: New Trauma and Injury Severity Score (TRISS) adjustments for survival prediction
Adjusted TRISS 1/(1 + e−b), where b = b0 + b1(RTS) + b2(ISS) + b3(age)* | ||
Coefficients | Blunt | Penetrating |
b 0 | − 1.64790049 | − 1.29803310 |
b 1 | 0.90535734 | 0.89538700 |
b 2 | − 0.07845091 | − 0.09521947 |
b 3 | − 1.38013670 | − 1.27540759 |
NTRISS-like 1/(1 + e−b), where b = b0 + b1(BMR) + b2(SBP) + b3(NISS) + b4 (age)* | ||
Coefficients | Blunt | Penetrating |
b 0 | − 1.67602650 | − 1.58632944 |
b 1 | 0.61944706 | 0.58883203 |
b 2 | 0.89539814 | 0.96952677 |
b 3 | − 0.07289039 | − 0.06659814 |
b 4 | − 1.33088941 | − 1.00582810 |
TRISS SpO2 1/(1 + e−b), where b = b0 + b1(GCS) + b2(SBP) + b3(SpO2) + b4(ISS) + b5(age)* | ||
Coefficients | Blunt | Penetrating |
b 0 | − 2.97523446 | − 3.5166820 |
b 1 | 0.75773826 | 0.8515884 |
b 2 | 0.58321377 | 0.3453793 |
b 3 | 0.38492625 | 1.3098071 |
b 4 | − 0.08441861 | − 0.1955984 |
b 5 | − 1.59455370 | − 4.0353761 |
NTRISS-like SpO2 1/(1 + e−b), where b = b0 + b1(BMR) + b2(SBP) + b3(SpO2) + b4(NISS) + b5 (age)* | ||
Coefficients | Blunt | Penetrating |
b 0 | − 2.73634921 | − 1.5156694 |
b 1 | 0.59396868 | 0.1832071 |
b 2 | 0.66226833 | 1.0209288 |
b 3 | 0.56405908 | 1.1288631 |
b 4 | − 0.06841853 | − 0.1138697 |
b 5 | − 1.43274160 | − 1.7286860 |