Table 2.

Bivariate analysis of the 8 variables/melanoma risk factors combined with the iDscore 2018 checklist and association with MM histologic diagnosis.

8 variables/melanoma risk factors	iDScore 2018 checklist + new variable
	OR (95% CI)	P
>11 nevi/right arm	1.1 (0.6–2.3)	0.801
History of MM (personal/1st relative)	2.8 (1.4–5.4)	< 0.001
Sunburns	1.0 (0.5–2.0)	0.928
Skin phototype (I+II vs III+IV)	2.9 (1.5–5.6)	< 0.001
Pheomelanin phenotype	1.5 (0.7–3.6)	0.333
Green/light-blue/blue eyes	1.0 (0.6–2.0)	0.913
Blonde hair	1.3 (0.6–2.7)	0.546
Smoke (>5 cigarettes/day)	1.1 (0.5–2.4)	0.803

CI = Confidence Interval; OR Odds ratio.