Table 2.

Model performance (AUC) of the original VA model at VA and UM, by outcome stage, by sex

Outcome		VA Test AUC (95% Cl)			UM Test AUC (95% Cl)
	All	Female	Male	All	Female	Male
Multiclass
Original VA model	0.9742(0.9718, 0.9770)	0.9691(0.9413, 0.9846)	0.9744(0.9721, 0.9777)	0.8685(0.8644, 0.8726)	0.8689(0.8612, 0.8738)	0.8680(0.8620, 0.8740)
AKI-1+
Incidence	3.53%(23,957/678,516)	2.00%(745/37,226)	3.62(23,212/641,290)	3.76%(58,382/1,551,354)	3.18%(24,585/772,665)	4.34%(33,797/778,689)
Original VA model	0.8196(0.8168, 0.8223)	0.7943(0.7770, 0.8116)	0.8194(0.8166, 0.8222)	0.8469(0.8453, 0.8484)	0.8477(0.8453, 0.8501)	0.8439(0.8419, 0.846)
AKI-2+
Incidence	0.41 %(3,277/806,465)	0.34%(139/40,855)	0.41 %(3,138/765,610)	0.86%(15,076/1,753,474)	0.75%(6,472/857,809)	0.96%(8,604/895,665)
Original VA model	0.7741(0.7656, 0.7825)	0.7636(0.7191, 0.8080)	0.7749(0.7663, 0.7835)	0.6550(0.6494, 0.6606)	0.6504(0.6419, 0.6590)	0.6622(0.6549, 0.6695)
AKI-3+
Incidence	0.22%(1,775/821,316)	0.21 %(88/41,443)	0.22%(1,687/779,873)	0.39%(6,976/1,790,447)	0.32%(2,780/875,621)	0.46%(4,196/914,826)
Original VA model	0.8341(0.8248, 0.8433)	0.7111(0.6520, 0.7703)	0.8393(0.8300, 0.8486)	0.7981(0.7919, 0.8044)	0.7627(0.7518, 0.7737)	0.8271(0.8198, 0.8345)
AKI-3D
Incidence	0.11 %(940/839,964)	0.15%(61/42,071)	0.11 %(879/797,893)	0.08%(1,412/1,817,604)	0.07%(586/887,574)	0.09%(826/930,030)
Original VA model	0.9497(0.9429, 0.9565)	0.8927(0.8251, 0.9602)	0.9537(0.9487, 0.9588)	0.9558(0.9507, 0.9609)	0.9560(0.9480, 0.9641)	0.9550(0.9483, 0.9618)