Table 3

Differences in physical activity (steps per day) and fatigue (CFQ score) between SEID-positive and SEID-negative patients 30 weeks after inclusion

VariablesSEID-positive, meanSEID-negative, meanDifference*P value*
Steps per day, number
 Week 3046674518−4980.326
CFQ total sum score
 Week 3019.020.41.860.413
  • *Based on analysis of covariance models in which differences and P values are adjusted for baseline values of outcome variables as well as allocation to clonidine/placebo during the first 8 weeks of the trial.

  • CFQ, Chalder Fatigue Questionnaire; SEID, systemic exertion intolerance disease.