Table 4. Multivariable logistic regression analysis for clinical features of LM.

Variable	Odds ratio	95% CI
Age	1.047	0.975~1.124
Width of LM	1.083	1.018∼1.153
Color of LM
Monochromic	1
Heterochromic	8.217	0.456∼149.977
Nail plate dystrophy
Absence of dystrophy	1
Nail plate dystrophy	2.352	0.267∼20.714

CI: confidence interval, LM: longitudinal melanonychia.