Physical activity in children with Juvenile Idiopathic Arthritis compared to controls

Table 4 Multivariate linear regression analyses to predict physical activity in children with juvenile idiopathic arthritis

The regression equation for PAL is as follows:
\( \begin{array}{l}\mathrm{PAL} = \mathrm{reference} + 0.06\ *\ \mathrm{age}\ \left(\mathrm{centered}\ 10\right) + \hbox{-} 0.01\ *\ \mathrm{B}\mathrm{M}\mathrm{I}\ \left(\mathrm{centered}\ 17\right) + \hbox{-} 0.07\ *\ \mathrm{gender} + \hbox{-} 0.16\ \\ {}*\ \mathrm{season} + \hbox{-} 0.01\ *\ \mathrm{medication} + \hbox{-} 0.005\ *\ \mathrm{disease}\ \mathrm{activity} + \hbox{-} 0.05\ *\ \mathrm{functional}\ \mathrm{ability}\ \left(\mathrm{CHAQ}\right) + \hbox{-} 0.04\ \mathrm{V}\mathrm{A}\mathrm{S}\ \\ {}\mathrm{well}\hbox{-} \mathrm{being} + 0.03\ *\ \mathrm{V}\mathrm{A}\mathrm{S}\ \mathrm{pain}. = \end{array} \)
The reference in this equation a 10 year old boy with JIA, a BMI of 17 kg/m² of which the data was collected in the summer and off medication
JIA juvenile idiopathic arthritis, BMI body mass index, PAL physical activity level. MVPA: moderate to vigorous activity expressed in hours/day. Sedentary time expressed in hours/day. CI confidence interval of B. Reference category: Boy of 10 years, with a BMI of 17, with JIA, who filled in the diary in the summer period and is off medication. A lower score in well-being corresponds to a better well-being. CHAQ, childhood health assessment questionnaire

ISSN: 1546-0096