Diagnostic accuracy of intraoperative frozen section for margin evaluation of oral cavity squamous cell carcinoma

BMC Research Notes

Table 3 Comparison of frozen section with final (paraffin) for the evaluation of margins of oral squamous cell carcinoma with respect to clinical parameters

Variables		Frozen section margin status	Final (paraffin) section margin status		Sensitivity	Specificity	PPV	NPV	Diagnostic accuracy
Variables		Frozen section margin status	Positive	Negative	Sensitivity	Specificity	PPV	NPV	Diagnostic accuracy
Gender	Male	Positive	68	3	90.67%	95.31%	95.77%	89.71%	92.81%
	Male	Negative	7	61	90.67%	95.31%	95.77%	89.71%	92.81%
	Female	Positive	51	3	86.44%	94.34%	94.44%	86.21%	90.18%
	Female	Negative	8	50	86.44%	94.34%	94.44%	86.21%	90.18%
Age	≤ 50 years	Positive	53	3	94.64%	93.75%	94.64%	93.75%	94.23%
	≤ 50 years	Negative	3	45	94.64%	93.75%	94.64%	93.75%	94.23%
	> 50 years	Positive	66	3	84.62%	95.65%	95.65%	84.62%	89.80%
	> 50 years	Negative	12	66	84.62%	95.65%	95.65%	84.62%	89.80%
Disease Duration	≤ 4 months	Positive	61	2	82.43%	95.83%	96.83%	77.97%	87.70%
	≤ 4 months	Negative	13	46	82.43%	95.83%	96.83%	77.97%	87.70%
	> 4 months	Positive	58	4	96.67%	94.20%	93.55%	97.01%	95.35%
	> 4 months	Negative	2	65	96.67%	94.20%	93.55%	97.01%	95.35%

ISSN: 1756-0500