Specialist treatment of chronic fatigue syndrome/ME: a cohort study among adult patients in England.
Collin, Simon M, Crawley, Esther · BMC health services research · 2017 · DOI
Quick Summary
This study looked at how 952 ME/CFS patients fared after receiving treatment at 11 specialist NHS clinics in England. One year after starting treatment, about 27% felt much better, 37% felt a little better, but 20% felt the same or worse. Even 2-5 years later, 85% of patients still had ME/CFS symptoms, showing that this is a long-lasting condition that often continues despite specialist care.
Why It Matters
This is one of the largest NHS-based longitudinal studies of specialist ME/CFS care in England, providing real-world evidence about outcomes across multiple services. It demonstrates that while some patients improve with specialist treatment, ME/CFS typically persists as a chronic condition, informing patient expectations and highlighting the need for more effective interventions and better understanding of treatment response predictors.
Observed Findings
At 1-year follow-up, 27.5% of patients reported 'very much' or 'much better' overall health, while 20.1% reported no change or worsening.
At 2-5 year follow-up, 30.4% reported substantial improvement but 30.6% reported no change or worsening.
85.4% of former patients at 2-5 year follow-up still reported active CFS/ME symptoms.
Treatment programmes varied substantially across the 11 specialist services in delivery mode (individual vs group) and number of sessions.
Only 40.2% of the 1-year follow-up cohort had been discharged from specialist services by the time of assessment.
Inferred Conclusions
Although specialist NHS treatment produces substantial improvement in about one-third of adult ME/CFS patients, CFS/ME typically persists as a long-term condition even after specialist intervention.
There is significant variation in treatment delivery across NHS specialist services, which may reflect different clinical approaches but also represents a gap in standardization.
The majority of patients remain symptomatic years after specialist assessment, indicating that current treatment approaches address symptoms in only a minority of cases.
Remaining Questions
What patient or disease characteristics predict which individuals will respond well to specialist treatment versus those who will remain unchanged or worsen?
What This Study Does Not Prove
This study does not prove that specialist treatment causes the observed improvements, as there is no untreated control group and no blinding. It cannot establish which specific treatment elements are most effective because services used varied protocols. The study also cannot explain why treatment responses differ between individuals or identify predictors of who will improve.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
Which specific therapeutic components or service delivery models are most effective, and does increased treatment intensity improve outcomes?
Why do treatment outcomes vary substantially across the 11 specialist services, and what role does variation in protocols play in determining patient outcomes?
What happens to patients who do not complete follow-up assessments, and does non-completion bias the reported outcomes toward better or worse prognosis?