Long-term effectiveness
anxiety, fatigue, pain
SECONDARY
In 12-month follow-up, the percentage of patients with adequate relief in the intervention group was 41.3%, as compared to 31.2% in the control group. Between group differences were not statistically significant after adjustment for potential confounders (Quality of life improved significantly on PCS and MCS in patients from the intervention group (As for the secondary outcomes, patients within the intervention group improved significantly on overall current health, severity of symptoms pain and fatigue, severity of psychosocial symptoms subscale distress, subscale anxiety and subscale somatization, and the illness perception items consequences, personal control and identity (Long-term results of the per-protocol analyses showed similar results on the primary outcome measures as the intention-to-treat analyses. Only on the secondary outcome measures, heiQ subscale “self-monitoring and insight”, a statistically significant difference between groups was found (