From: A multicenter, double-blind, randomized, controlled phase III clinical trial of chicken type II collagen in rheumatoid arthritis
Group
Relief
(≤ 2.6)
Low activity
(2.6~3.2)
Mid activity
(3.2~5.1)
High activity
(>5.1)
Chi-square
Pvaluea
CCII (n = 296)
36
26
138
96
5.476
0.019
MTX (n = 158)
20
19
88
31