Table 1.

The demographic characteristics of the keloids group and the control group.

Variables	Keloids		P value
	Yes	No
	N = 17,401	N = 69,604
Cancer, n (%)	893 (5.13)	2434 (3.50)	< 0.0001
Age mean (SD) (years)	38.4 (14.4)	38.4 (14.3)	0.7993
Age group, n (%)
20–40	11,321 (65.1)	45,273 (65.0)
41–60	4472 (25.7)	18,112 (26.0)
> 60	1608 (9.2)	6219 (8.9)	0.3669
Gender
Males	6635 (38.1)	26,540 (38.1)
Females	10,766 (61.9)	43,064 (61.9)	1.0000
Region, n (%)
Northern	7511 (43.2)	29,660 (42.6)
Central	4759 (27.3)	19,156 (27.5)
Southern	4553 (26.2)	18,215 (26.2)
Eastern, Offshore islets, and other	578 (3.3)	2573 (3.7)	0.0878

SD standard deviation.