E2 ModerateModerate confidencePEM not requiredCross-SectionalPeer-reviewedReviewed
Standard · 3 min
[Patients with fatigue in family practice: prevalence and treatment].
Kenter, E G, Okkes, I M · Nederlands tijdschrift voor geneeskunde · 1999
Quick Summary
This study looked at how often people visit their doctor complaining of fatigue and what doctors do about it. Researchers tracked visits from general practitioners across the Netherlands over 10 years, involving over 93,000 patient visits. They found that about 92 out of every 1,000 patients saw their doctor each year because of fatigue, but only about 4% had fatigue lasting 6 months or longer.
Why It Matters
This study provides epidemiological context for understanding how common severe, persistent fatigue is in primary care and how it is typically managed—important baseline data for ME/CFS patients trying to understand their condition's prevalence and the historical approach to fatigue in medical practice. It highlights that most fatigue in general practice resolves quickly, helping contextualize why patients with prolonged fatigue (potentially including ME/CFS) may face diagnostic and therapeutic challenges.
Observed Findings
92 per 1,000 listed patients consulted their GP annually for fatigue
Somatic or psychiatric diagnoses were assigned in 27.7 per 1,000 fatigue consultations
Approximately 4% of fatigue episodes lasted 6 months or longer
61% of patients with fatigue ≥6 months had documented chronic disease or psychiatric comorbidity
Physical examination was performed in 63% of fatigue consultations; blood testing in 34%; specialist referral in only 3%
Inferred Conclusions
Most fatigue episodes in general practice are self-limited, resolving within 4 weeks
Only a small proportion of GP-registered fatigue cases persist beyond 6 months
The authors' estimate of ~1 per 1,000 patients meeting chronic fatigue syndrome criteria appears plausible but may be slightly elevated
GPs predominantly use conservative management strategies consistent with clinical recommendations of that era
Remaining Questions
What proportion of the long-standing fatigue cases (≥6 months) actually meet formal ME/CFS diagnostic criteria?
What are the long-term outcomes and quality of life for patients whose fatigue persists beyond 6 months?
What This Study Does Not Prove
This study does not establish ME/CFS prevalence specifically, as it captures all fatigue presentations without formal ME/CFS diagnostic criteria applied systematically. It does not prove that a 'wait and see' approach is optimal for any particular fatigue disorder, nor does it clarify the underlying causes of fatigue or long-term outcomes for patients with persistent symptoms. The study is observational and cannot demonstrate causation or evaluate treatment effectiveness.
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 →
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