Table 3.

Univariate regression coefficients of baseline variables with the Z-score of Bone Health Index ^a

Baseline variable	Estimated β	95% CI	P -value
Age	0.067	−0.024 to 0.159	0.147
Male gender	−0.649	−1.197 to −0.102	0.021
Disease duration	0.040	−0.080 to 0.160	0.505
CHAQ	0.008	−0.420 to 0.436	0.971
JADAS-10	−0.036	−0.094 to 0.023	0.224
Ever use of systemic glucocorticoids	−0.340	−0.904 to 0.224	0.233

^aCHAQ, Child Health Assessment Questionnaire; JADAS, Juvenile Arthritis Disease Activity Score; Z-score, Standard deviation score compared with the healthy population.