Performance of new adjustments to the TRISS equation model in developed and developing countries

Table 4 Predictive ability of the equations NTRISS-like, TRISS SpO₂, and NTRISS-like SpO₂, with coefficients derived from the HCFMUSP and UCSDMC derivation databases, applied to the different groups for blunt and penetrating trauma, according to the severity by the Injury Severity Score (< or ≥16). São Paulo-San Diego, 2006–2010

	HCFMUSP equations validated on the HCFMUSP database				HCFMUSP equations validated on the UCSDMC database
	ISS <16		ISS ≥16		ISS <16		ISS ≥16
	AUC	95% CI	AUC	95% CI	AUC	95% CI	AUC	95% CI
NTRISS-like	0.908	0.878–0.938	0.867	0.836–0.898	0.901	0.868–0.933	0.868	0.837–0.898
TRISS SpO₂	0.871	0.834–0.908	0.846	0.813–0.878	0.882	0.847–0.917	0.849	0.818–0.881
NTRISS-like SpO₂	0.892	0.860–0.923	0.862	0.830–0.894	0.887	0.854–0.920	0.861	0.829–0.894
	UCSDMC equations validated on the UCSDMC database				UCSDMC equations validated on the HCFMUSP database
	ISS <16		ISS ≥16		ISS <16		ISS ≥16
	AUC	95% CI	AUC	95% CI	AUC	95% CI	AUC	95% CI
NTRISS-like	0.909	0.863–0.954	0.936	0.913–0.958	0.899	0.850–0.948	0.936	0.913–0.958
TRISS SpO₂	0.911	0.861–0.961	0.921	0.894–0.948	0.894	0.827–0.960	0.911	0.883–0.940
NTRISS-like SpO₂	0.885	0.817–0.954	0.926	0.901–0.951	0.870	0.796–0.944	0.926	0.900–0.951

ISSN: 1749-7922