Table 2 Coefficients for NTRISS-like, TRISS SpO2, and NTRISS-like SpO2 derived from the HCFMUSP and UCSDMC derivation databases, for blunt and penetrating trauma. São Paulo-San Diego, 2006–2010
From: Performance of new adjustments to the TRISS equation model in developed and developing countries
Coefficients | Blunt | Penetrating | ||
|---|---|---|---|---|
HCFMUSP | UCSDMC | HCFMUSP | UCSDMC | |
NTRISS-like 1/(1 + e −b), where b = b 0 + b 1 (BMR) + b 2 (SBP) + b 3 (NISS) + b 4 (Agea) | ||||
b 0 | −0.69833769 | −0.23530206 | −1.85975686 | 1.8503094 |
b 1 | 0.51106398 | 0.62672859 | 0.65231593 | 0.3724069 |
b 2 | 0.79908416 | 0.98770635 | 0.86044643 | 1.0745871 |
b 3 | −0.09919555 | −0.07369974 | −0.07452259 | −0.1152176 |
b 4 | −1.58444558 | −1.98269784 | −0.31343883 | −2.9135328 |
TRISS SpO2 1/(1 + e −b), where b = b 0 + b 1 (GCS) + b 2 (SBP) + b 3 (SpO2) + b 4 (ISS) + b 5 (Age)a | ||||
b 0 | −0.68105065 | 0.07350818 | 0.4526497 | −13.4424770 |
b 1 | 0.59504995 | 0.96410432 | 0.8334234 | 1.1728932 |
b 2 | 0.51134929 | 0.80528143 | 0.3053943 | 1.3872589 |
b 3 | 0.29276785 | 0.10331305 | 1.1843363 | 2.6946416 |
b 4 | −0.08129884 | −0.10089655 | −0.2724244 | −0.1016297 |
b 5 | −1.72272683 | −2.12257955 | −4.4829665 | −3.0394087 |
NTRISS-like SpO2 1/(1 + e −b), where b = b 0 + b 1 (BMR) + b 2 (SBP) + b 3 (SpO2) + b 4 (NISS) + b 5 (Age) a | ||||
b 0 | −0.93885693 | −1.61070692 | −1.2399835 | −9.4481884 |
b 1 | 0.47015472 | 0.65710014 | 0.3143480 | 0.2461155 |
b 2 | 0.52813273 | 0.88971953 | 0.7462718 | 1.6433308 |
b 3 | 0.39359433 | 0.41984723 | 1.1698218 | 2.6394271 |
b 4 | −0.09505282 | −0.07388783 | −0.1278085 | −0.1193648 |
b 5 | −1.70681763 | −1.99504004 | 10.7638537 | −3.8592826 |