Defining the prevalence and symptom burden of those with self-reported severe chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME): a two-phase community pilot study in the North East of England. — CFSMEATLAS
Defining the prevalence and symptom burden of those with self-reported severe chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME): a two-phase community pilot study in the North East of England.
Strassheim, Victoria Jane, Sunnquist, Madison, Jason, Leonard A et al. · BMJ open · 2018 · DOI
Quick Summary
This study tried to find out how many people in Northern England have severe ME/CFS and what symptoms they experience. Researchers sent questionnaires to people with ME/CFS and then invited five participants to take part in home-based research visits. The study found that people with severe ME/CFS want to participate in research but struggle with their high symptom burden and poor quality of life, which makes completing research visits challenging.
Why It Matters
This study provides important insights into the experiences and needs of people with severe ME/CFS, who are often excluded from research due to their inability to travel to research centers. It demonstrates that home-based research methods can be more accessible but require careful planning given the high symptom burden these patients experience. Understanding these realities helps researchers design more feasible and compassionate studies for this vulnerable population.
Observed Findings
Of 63 returned questionnaire packs, 56 participants completed the De Paul Fatigue Questionnaire
12 participants (22%) did not meet either the Fukuda or Canadian Clinical Criteria diagnostic criteria
6 of the 12 individuals without diagnostic criteria had fatigue related to other causes
Pilot study participants completed only 60% of planned home-based visits
Severely affected CFS/ME individuals demonstrated willingness to participate in research despite their illness
Inferred Conclusions
Severely affected individuals with CFS/ME experience substantial symptom burden and reduced quality of life that significantly impacts research participation and completion
Home-based research methods are feasible and valued by severely affected CFS/ME patients but require adapted timelines and expectations
Research protocols for severe CFS/ME populations must carefully consider the clinical and functional limitations of participants when planning studies
Remaining Questions
What is the actual population prevalence of severe ME/CFS in the North East England region, given the low questionnaire response rate?
What specific symptoms or functional limitations most impaired participants' ability to complete the planned 60% of visits?
What This Study Does Not Prove
This pilot study does not establish the true prevalence of severe ME/CFS in the general population, as the low questionnaire response rate (13%) may not represent all affected individuals. The small sample size (n=5 for phase 2) and geographic limitation to Northern England limit generalizability to other populations. The study does not explain why some individuals without meeting formal diagnostic criteria reported severe fatigue.
Tags
Symptom:Post-Exertional MalaiseFatigue
Phenotype:Severe
Method Flag:Weak Case DefinitionNo ControlsSmall SampleExploratory OnlySevere ME Included