Computed tomography-guided cutting needle biopsy for lung nodules: when the biopsy-based benign results are real benign

Table 2 Predictors of true negatives

Variables	Univariate analysis			Multivariate analysis
Variables	Hazard ratio	95% CI	p-value	Hazard ratio	95% CI	p-value
Age	1.082	1.010–1.158	0.024	1.078	0.995–1.169	0.066
Abnormal CEA	7.037	1.782–27.784	0.005	4.228	0.697–25.635	0.117
Abnormal SCC	22.091	2.109–231.443	0.01	13.060	0.801–212.880	0.071
Granulomatous inflammation	0.144	0.030–0.684	0.015	0.110	0.019–0.625	0.013

CI confident interval, CEA carcinoembryonic antigen, SCC squamous cell carcinoma antigen

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