Table 2.

Frequencies of occurrence of clinical outcomes comparing RS, OS, and SS, with p-values indicating statistical significance of both univariable and multivariable models. Dash indicates the variable is not included in the model, while n.s. stands for not significant. NA, missing data (not available).

Variable	Counts (%)			p-Value (Univar.)	p-Value (Multivar.)
	RS1094 (48.9)	OS826 (36.9)	SS318 (14.2)
Age (years)				6.479 × 10−5	-
≤25	218 (19.9)	139 (16.8)	45 (14.2)
26–45	352 (32.2)	279 (33.9)	111 (34.9)
46–65	354 (32.4)	291 (35.2)	109 (34.3)
≥65	133 (12.2)	78 (9.4)	53 (16.7)
NA	37 (3.4)	39 (4.7)	0 (0.0)
Sex				0.02093	-
F	668 (60.9)	549 (66.4)	190 (59.7)
M	428 (39.1)	277 (33.6)	128 (40.3)
NA	0 (0.0)	0 (0.0)	0 (0.0)
Family history				0.006994	0.0115
NO	921 (84.2)	725 (87.,8)	257 (80.8)
YES	173 (15.8)	101 (12.2)	61 (19.2)
NA	0 (0.0)	0 (0.0)	0 (0.0)
Phototype				5.92 × 10−15	1 × 10−5
III-IV-V	438 (40.0)	462 (55.9)	109 (34.3)
I-II	656 (60.0)	364 (44.1)	209 (65.7)
NA	0 (0.0)	0 (0.0)	0 (0.0)
Melanoma history				n.s.	n.s.
NO	1060 (96.9)	794 (96.1)	311 (97.8)
YES	34 (3.1)	32 (3.9)	7 (2.2)
NA	0 (0.0)	0 (0.0)	0 (0.0)
Dysplastic nevi				n.s.	n.s.
NO	1078 (98.5)	810 (98.1)	311 (97.8)
YES	16 (1.5)	16 (1.9)	7 (2.2)
NA	0 (0.0)	0 (0.0)	0 (0.0)
Seborrheic keratosis				n.s.	-
NO	855 (78.2)	674 (81.6)	258 (81.1)
YES	239 (21.8)	152 (18.4)	60 (18.9)
NA	0 (0.0)	0 (0.0)	0 (0.0)
Non-melanoma skin cancer				n.s.	-
NO	1046 (95.6)	793 (96.0)	294 (92.5)
YES	48 (4.4)	33 (4.0)	24 (7.5)
NA	0 (0.0)	0 (0.0)	0 (0.0)
Recommended follow-up				2.2 × 10−16	-
NO	565 (51.7)	407 (49.3)	56 (17.6)
YES	507 (46.3)	413 (50.0)	259 (81.5)
NA	22 (2.0)	6(0.7)	3(0.9)
Advised Surgical Removal				0.04405	-
NO	985 (90.0)	747 (90.5)	275 (86.5)
YES	87 (8.0)	73 (8.8)	40 (12.6)
NA	22 (2.0)	6(0.7)	3(0.9)