Table 4:

Accuracy of Off State levels in diagnosing CHE in the test set of the derivation cohort (n=99) and validation cohort (n=94) based on formula created from the training set of the derivation cohort (n=299)

	Total Stroop Time (Off+On)		Off 1 through 2		Off 1 through 3		Off 1 through 4		Off1 through 5
	Test Set (n = 99)	Validation cohort (n = 94)	Test Set (n = 99)	Validation cohort (n = 94)	Test Set (n = 99)	Validation cohort (n = 94)	Test Set (n = 99)	Validation cohort (n = 94)	Test Set (n = 99)	Validation cohort (n = 94)
Accuracy	81.82%	80.85%	77.78%	84.04%	77.78%	82.98%	77.78%	81.91%	79.80%	80.85%
Sensitivity	75.00%	62.50%	70.83%	75.00%	68.75%	66.67%	66.67%	66.67%	72.92%	62.50%
Specificity	88.24%	87.14%	84.31%	87.14%	86.27%	88.57%	88.24%	87.14%	83.33%	87.14%