Table 4.

Multivariate analysis for LN metastasis

Variable	OR	95%CI	p-value
Initial diameter	1.352	1.141–1.584	0.000
Consolidation increase	0.543	0.246–1.152	0.019
Volume increase	1.008	1.001–1.030	0.020
Mass increase	1.019	1.000-1.077	0.021
VDTt	0.921	0.878–0.965	0.002
MDTt	1.080	1.017–1.134	0.004

VDTt: volume doubling time of the whole nodule; MDTt: mass doubling time of the whole nodule; OR: odds ratio; CI: confidence interval