. Author manuscript; available in PMC: 2022 May 1.

Published in final edited form as: J Am Acad Dermatol. 2020 Oct 20;84(5):1295–1301. doi: 10.1016/j.jaad.2020.10.023

Table 2.

Summary measures of longest diameter of lesion and lesion area, by lesion status (in-situ and invasive).

Variable	Categorized	N	Mean	SD	Median	IQR	Min.	Max.	p-value

*Longest LM diameter*	In-situ	438	10.76	7.53	8	9	2	56	0.010
	Invasive	162	13.17	9.87	11	10	2	55	0.010

	Overall	600	11.41	8.29	9	9	2	56

*LM lesion area (Length × width)*	In-situ	438	128.32	220.92	64	119	4	2240	0.113
	Invasive	162	200.14	394.92	66	138	4	2750	0.113

	Overall	600	147.72	280.28	64	123.5	4	2750

**LM lesion area (0.5length × 0.5width × π)**	In-situ	438	100.78	173.50	64	50.3	4	2240	0.113
	Invasive	162	157.18	310.16	66	51.8	4	2750	0.113

	Overall	600	116.02	220.12	64	50.3	3.1	2159.8