Multivariate regression analysis of CT methods Features OR CI p Methods Dynamic CT 1 Delay phase CY 1, 31 0, 50 - 3, 41 0, 575 Contrast enhancement delay phase < 15 HU 1 ≥ 15 HU * 4, 86 2, 11 - 11, 20 < 0, 001 Contrast enhancement dynamic < 15 HU 1 ≥ 15 HU 11, 0 1, 20 - 100, 39 0, 034 Conclusion: Contrast enhancement (delay phase CT) has statistical significance with the diagnosis of lung cancer when the remaining factors are controlled (p <0.05).