Table 1.

Comparison of demographic characteristic of patients group

Parameter	Group AC (n=19)	Group AC+CII (n=20)	p
Age (years)	58.84±6.55	57.65±8.73	0.634
Gender
Male	2	1	0.605
Female	17	19
BMI (kg/m2)	27.9±4.16	30.20±5.27	0.154
KGL scale
Stage 2	18	16	0.342
Stage 3	1	4
Disease duration (yr)	5.10±1.37	4.45±1.84	0.218

Data presented as mean ± SD

Group AC: Group Acetaminophen; Group AC + CII: Group Acetaminophen + Native Type II Collagen; BMI: body mass index