The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 4 ROC curve for threshold and peak flow of cough challenge

From: Detection of airway protective level of the cough reflex in acute stroke patients

	AUC	95% CI	p value	Sig.	Cut-off point	Sensitivity	Specificity	PPV	NPV
Cough threshold	0.638	0.530 to 0.736	0.0148	S	> 1	43.75	83.05	58.3	73.1
Cough peak flow	0.797	0.700 to 0.874	<0.001	S	<= 100	84.37	62.71	55.1	88.1

AUC = area under curve, CI = confidence interval, NPV = negative predictive value, PPV = positive predictive value, S = significant

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