Table 2.

Univariable and multivariable logistic regression analysis of factors in the training cohort

Variable	Univariate analysis		Multivariate analysis
	OR (95% CI)	P value	OR (95% CI)	P value
Age (years)	1.000 (0.969-1.031)	0.975
Max-diameter (cm)	1.487 (0.692-3.092)	0.309
Sex	0.485 (0.132-1.779)	0.275
Smoking	0.474 (0.116-1.934)	0.298
Alcohol consumption	1.355 (0.372-4.934)	0.645
Number of nodules	0.025 (0.001-0.736)	0.033*	0.144 (0.012-1.747)	0.128
Symptom	6.901 (2.271-20.974)	0.001*	5.707 (2.205-14.770)	< 0.001*
Shape	0.432 (0.136-1.377)	0.156
Margin	30.316 (7.567-121.454)	< 0.001*	15.167 (5.116-44.968)	< 0.001*
Location	0.489 (0.228-1.052	0.067
Distribution	2.000 (0.867-4.613)	0.104
Density	0.750 (0.185-3.046)	0.688
Calcification	0.089 (0.003-2.866)	0.172
Cystic areas	1.347 (0.361-5.026)	0.658
Enhanced peak phase	0.829 (0.300-2.294)	0.718
Enhancement degree	0.728 (0.382-1.387)	0.334
Enhanced uniformity	1.571 (0.485-5.086)	0.451
Enlarged lymph nodes	806.789 (34.818-18694.732)	< 0.001*	131.615 (11.699-1480.670)	< 0.001*

^*Represents P < 0.05.

OR, odds ratio; CI, confidence interval.