Table 3.

Physical activity cut-off points to predict good attention capacity according to the ROC.

	On the day before the test					During the week before the test
	Unit/d	SE	SP	AUC	p value	Unit/d	SE	SP	AUC	p value
Calories burnt (calories)	2283	0.649	0.676	0.698	0.000	13,640	0.917	0.593	0.794	0.000
VATD (minutes)	20	0.540	0.765	0.662	0.000	76	0.798	0.667	0.791	0.000

Unit/d: unit per day; SE: sensitivity; SP: specificity; AUC: area under the receiver operating characteristic curve.