Table 3.

Performance of the new termination-of-resuscitation rule for predicting one-month death^a

	Development group ( N = 390,577)		Validation group ( N = 105,030)
Variables	Fulfilled 3/3 criteria	Did not fulfill criteria	Fulfilled 3/3 criteria	Did not fulfill criteria
	( n = 223,023, 57.1%)	( n = 167,554, 42.9%)	( n = 60,205, 57.3%)	( n = 44,825, 42.7%)
Death, n	221,167	154,512	59,763	40,712
Survival, n	1,856	13,042	442	4,113
Sensitivity (95% CI)	0.589 (0.587 to 0.590)		0.595 (0.592 to 0.598)
Specificity (95% CI)	0.875 (0.870 to 0.881)		0.903 (0.894 to 0.911)
PPV (95% CI)	0.992 (0.991 to 0.992)		0.993 (0.992 to 0.993)
NPV (95% CI)	0.078 (0.077 to 0.079)		0.092 (0.089 to 0.095)
Area under the ROC curve (95% CI)	0.851 (0.850 to 0.852)		0.874 (0.872 to 0.876)

^aCI, confidence interval; PPV, positive predictive value; NPV, negative predictive value; ROC, receiver operating characteristic.