From: The levels of urine CTX-II, C2C, and PYD in children patients with Kashin-Beck disease in Qinghai Province of China
N
Sex (male/female)
Age (years)
BMI (kg/m2)
External control group
50
25/25
10.0 (8.0, 10.0)
16.01 ± 1.76
Internal control group
41
24/17
11.0 (10.0, 12.0)
16.68 ± 1.96
Case group
31
14/17
12.0 (10.0, 13.0)
16.15 ± 1.73
P value
0.709
0.000
0.249