Table 4.

Comparison of Risk Classification for AKI.

Any AKIa	Risk Classification with fibrinogen*
Risk Classification without fibrinogen	<25% risk	25–50% risk	>50% risk	All
<25% risk	2896	43	0	2939
25–50% risk	59	371	14	444
>50% risk	0	8	68	76
All	2955	422	82	3459

Values shown are number (AKI risk percentage).

*Risk classification is based on the following predictors: age, sex, hypertension, diabetes mellitus, cerebrovascular disease, obesity, emergent surgery, surgery type, preoperative LVEF, eGFR, HB, and INR.

Abbreviations: acute kidney injury (AKI).