Real-time in vivo distal margin selection using confocal laser endomicroscopy in transanal total mesorectal excision for rectal cancer

Table 3 Comparison of real-time probe-based confocal laser endomicroscopy diagnostic accuracy between the neoadjuvant group and the nonneoadjuvant group

	Neoadjuvant group (n = 42)		Nonneoadjuvant group (n = 44)		P value
	%	95%CI	%	95%CI
Sensitivity	83.33	58.58-96.42	95.45	77.16-99.88	0.458
Specificity	77.27	54.63-92.18	95.83	78.88-99.89	0.153
Accuracy	80.00	64.35-90.95	95.65	85.16-99.47	0.055
PPV	75.00	50.90-91.34	95.45	77.16-99.88	0.147
NPV	85.00	62.11-96.79	95.83	78.88-99.89	0.473

CI: Confidence interval; PPV: Positive predictive value; NPV: Negative predictive value.