Risk factors for and prediction of mortality in critically ill medical–surgical patients receiving heparin thromboprophylaxis

Annals of Intensive Care

Table 7 Results for sensitivity analyses of model performance in the new model for 30-day hospital mortality and 30-day ICU mortality

Model performance	Goodness-of-fit		C index	SMR (95 % CI)
Model performance	p value^a	AIC	C index	SMR (95 % CI)
Hospital mortality in derivation set (n = 1891)^b	0.74	4682	0.63	1.005 (0.960–1.051)
Hospital mortality in validation set (n = 1855)^b	0.76	4789	0.65	1.006 (0.961–1.053)
ICU mortality in the whole set (n = 3746)^c	0.65	7559	0.64	1.003 (0.971–1.036)

AIC Akaike information criterion, SMR standardized mortality ratio
^aBased on Groennesby and Borgan test
^bThe new model for 30-day hospital mortality included BMI, medical admission, inotropes or vasopressors, acetylsalicylic acid or clopidogrel and APACHE II score
^cThe new model for 30-day ICU mortality consisted of BMI, medical admission, invasive mechanical ventilation and APACHE II score