Table 4.

Sensitivity and specificity of MMP-12 in the studied groups

Studied variables	Sensitivity	Specificity	AUC	Accuracy	p value	SE	CI
RT-PCR for MMP-12 Cut level = 0.7088	72.0%	60.0%	0.68	70.9%	<0.01**	0.03	0.62–0.74