From: The quality of life in Chinese juvenile idiopathic arthritis patients: psychometric properties of the pediatric quality of life inventor generic core scales and rheumatology module
N
Min
Max
Mean
SD
Age (y)
179
8.00
18.22
10.47
2.66
Onset age of JIA (y)
160
0.50
14.90
6.81
3.10
Diagnosis age (y)
170
15.10
7.43
3.04
Course of JIA (y)
0.00
14.3
3.57
2.55