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. 2021 May 25;3(7):e425–e433. doi: 10.1016/S2589-7500(21)00080-7

Table 2.

Performance of the risk models to predict risk of COVID-19 death in the validation cohort

	Period 1 (Jan 24, to April 30, 2020)		Period 2 (May 1, to July 31, 2020)
	COVID-19 death in women	COVID-19 death in men	COVID-19 death in women	COVID-19 death in men
r² statistic	0·763 (0·760–0·766)	0·771 (0·769–0·774)	0·754 (0·750–0·757)	0·774 (0·769–0·777)
D statistic	3·671 (3·640–3·702)	3·761 (3·732–3·789)	3·579 (3·542–3·616)	3·782 (3·739–3·826)
Harrell's C statistic	0·945 (0·943–0·947)	0·935 (0·933–0·937)	0·956 (0·954–0·958)	0·944 (0·942–0·946)
Brier score	0·0018	0·0013	0·0007	0·0008

Data are estimate (95% CI).