Self-Help for Medically Unexplained Symptoms: A Systematic Review and Meta-Analysis

Area of Science:

• Medical research
• Psychology
• Public health

Background:

• Medically unexplained symptoms (MUS) are prevalent and challenging to treat across medical disciplines.
• Self-help interventions offer a potential avenue for managing these complex conditions.

Purpose of the Study:

• To systematically review and meta-analyze the efficacy of self-help interventions for adults experiencing medically unexplained symptoms.

Main Methods:

• Conducted a systematic search of four electronic databases for randomized controlled trials.
• Included studies compared self-help interventions against usual care or waiting lists.
• Pooled data using a random-effects model to assess symptom severity and quality of life (QoL).

Main Results:

• Self-help significantly reduced symptom severity (g = 0.58) and improved QoL (g = 0.66) compared to control groups.
• These benefits were observed both directly posttreatment and at follow-up.
• Despite a high risk of bias in most studies, sensitivity analyses indicated robust findings, though publication bias was suggested.

Conclusions:

• Self-help interventions demonstrate significant efficacy in reducing symptom severity and enhancing QoL for individuals with MUS.
• The methodological quality of existing studies is a limitation.
• Further high-quality research is warranted to confirm these positive outcomes.