Roor, Jeroen J, Dandachi-FitzGerald, Brechje, Peters, Maarten J V et al. · Journal of the International Neuropsychological Society : JINS · 2022 · DOI
This study looked at whether certain types of memory test performance could predict how well people with ME/CFS would respond to cognitive behavioral therapy (CBT). Researchers tested 1,081 patients before and after CBT treatment. While test scores didn't predict treatment outcomes for people who stuck with the program, patients with lower test scores were more likely to drop out of treatment early. The key finding is that if people with lower scores stayed in treatment, they actually improved just as much as others.
This research addresses an important clinical question about which ME/CFS patients may struggle with CBT engagement, helping clinicians identify those at risk for dropout and potentially modify interventions to improve retention. The finding that lower cognitive test performance doesn't impair treatment response in completers challenges assumptions about who can benefit from CBT for ME/CFS and suggests barriers to engagement warrant targeted attention rather than exclusion.
This study does not establish that poor test performance *causes* treatment dropout; it only shows an association. The study cannot determine why lower-scoring patients had higher dropout rates (whether due to cognitive factors, symptom severity, motivation, or other unmeasured variables). The results also may not generalize to all CBT programs for ME/CFS, as this was a specific clinical sample.
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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