From: Risk factors of keloids in Syrians
Age group
Earlobe
sharp wound
Acne
Total
No
Yes
B
73
7
59
21
66
14
80
A,C,D,E,F,G
177
2
159
20
167
12
179
250
9
218
41
233
26
259
P value (chi-square test)
0.002
0.008