Targeting persistent fatigue with tailored versus generic self‐management strategies in adolescents and young adults with a fatigue syndrome or rheumatic condition: A randomized crossover trial.

Objectives: To evaluate the use of two self‐management intervention strategies for persistent fatigue in adolescents and young adults with a fatigue syndrome or rheumatic condition. Design: A randomized crossover trial administering tailored lifestyle advice and generic dietary advice, each 12 weeks, with a four‐week washout period between. Methods: Sixty participants (aged 12–29) were included. Tailoring was achieved through the PROfeel method. Dietary guidelines were conceptualized by the Netherlands Nutrition Centre. Questionnaires were used pre–post‐interventions to measure primary outcome 'fatigue severity' (Checklist Individual Strength‐8) and secondary outcomes 'self‐efficacy' (Self‐Efficacy Scale‐28) and 'quality of life' (QoL) (Paediatric Quality of Life Inventory 4.0). Feasibility and adherence were self‐rated on a scale of 1 to 10 (low to high). Linear mixed modelling was used to assess change over time, compare strategy effectiveness and study the impact of intervention order. Results: Fatigue severity, self‐efficacy and QoL regarding 'physical' and 'emotional' functioning improved significantly over time (all p <.015). The average improvement of the two QoL subscales was clinically relevant, as was the fatigue improvement in 20 out of 46 participants who completed the trial and 5 dropouts. The interventions were equally effective, and intervention order did not impact the improvement level (prange =.242–.984). The self‐management strategies received similar feasibility (M = 6.45, SD = 1.91) and adherence (M = 7.67, SD = 1.67) ratings. Conclusions: As small to clinically relevant improvements were observed, self‐management strategies might be particularly useful to bridge waiting time for guided treatments such as Cognitive Behavioural Therapy. [ABSTRACT FROM AUTHOR]