Physical activity in patients with oligo- and polyarticular juvenile idiopathic arthritis diagnosed in the era of biologics: a controlled cross-sectional study

Table 3 Correlates for physical activity in patients with JIA (N = 55)

	Univariate Analyses		Multiple Regression Analyses
	Unstandardized B (95% CI)	P-value	Unstandardized B (95% CI)	P-value
Counts per minute ^a
Age	−31.5 (− 54.1, − 8.9)	0.007	−25.2 (−46.0, − 4.4)	0.02
Female sex	100.2 (− 44.7, 245.2)	0.17	20.4 (111.7, 152.4)	0.76
Participation in organized PA	141.0 (38.7, 243.2)	0.008	105.7 (9.2, 202.2)	0.03
Use of biologic medication	150.5 (53.5, 247.5)	0.003	117.5 (24.2, 210,7)	0.02
Disease duration	−9.5 (− 22.7, 3.7)	0.15
R² adjusted			0.37
Vigorous physical activity ^b
Age	0.4 (−1.0, 1.9)	0.57	0.5 (−0.9, 1.9)	0.41
Female sex	7.2 (−0.9, 16.1)	0.08	5.69 (−2.8, 14.2)	0.19
Participation in organized PA	8.4 (2.3, 14.5)	0.008	7.6 (1.3, 13.9)	0.02
Use of biologic medication	5.0 (−1.1, 11.2)	0.10
Accelerometer wear time	0.03 (−0.04, 0.09)	0.41	0.03 (−0.04, 0.09)	0.41
R² adjusted			0.11
Sedentary time ^b
Age	21.2 (14.7, 27.6)	< 0.001	17.4 (12.1, 22.6)	< 0.001
Female sex	−33.4 (18.6, −85.5)	0.20	−8.9 (−41.0, 23.3)	0.32
Participation in organized PA	−30.2 (−68.5, 8.1)	0.12
Use of biologic medication	−43.8 (−79.6, −8.0)	0.02	−31.0 (−53.9, − 8.0)	0.01
Arthritis in lower extremities	46.3 (−2.4, 95.1)	0.06
Disease duration	4.0 (−0.7, 8.7)	0.09
Accelerometer wear time	0.8 (0.4, 1.1)	< 0.001	0.6 (0.4, 0.8)	< 0.001
R² adjusted			0.65

JIA juvenile idiopathic arthritis, CI confidence interval, PA physical activity
^aResults from the final model of multiple linear regression analysis (method enter) controlled for age and sex. ^b Results from the final models of multiple linear regression analyses (method enter) controlled for age, sex and accelerometer wear time

ISSN: 1546-0096