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Table 4 Correlation between disease variables and estimated VO2peak and walking distance in patients with JIA

From: Measurement properties and performance of an eight-minute submaximal treadmill test in patients with juvenile idiopathic arthritis: a controlled study

Disease variable Estimated VO2peak p-value Walking distance p-value
Use of any medication −0.07 0.59 −0.10 0.47
Use of synthetic DMARDs 0.04 0.79 −0.04 0.76
Use of biologic DMARDs −0.03 0.80 0.02 0.81
JADAS 71 (0–101) −0.03 0.84 0.08 0.54
CHAQ (0–3) −0.13 0.35 −0.18 0.17
Active joints 0.10 0.48 0.21 0.16
Active joints in the lower extremities 0.09 0.46 0.20 0.13
Disease duration (years) −0.13 0.34 0.00 0.97
Pain, current (NRS 0–10) −0.21 0.11 −0.13 0.31
Pain, previous week (NRS 0–10) −0.16 0.24 −0.02 0.88
Fatigue, previous week (NRS 0–10) −0.07 0.58 −0.02 0.87
  1. JIA juvenile idiopathic arthritis, DMARDs disease modifying anti-rheumatic drugs, JADAS juvenile arthritis disease activity score, CHAQ childhood health assessment questionnaire, NRS numeric rating scale, VO2peak peak oxygen uptake