The CFI proprietary epidemiology study is aimed to evaluate the presentation and trajectory of CFS and identify effective interventions. One thousand subjects from four of the original five cohort recruitment sites completed a questionnaire and a chart review was conducted to establish baseline symptoms and diagnoses, inter-current events, new diagnoses, comorbid conditions, and history of illness. The data is now in the process of being analyzed to evaluate the presentation and trajectory of CFS over a period of time and to determine the effects of interventions.
An initial Harvard School of Public Health study of CFS sufferers, based on the Nurses Health Studies I and II and the Health Professional Follow-on Study, aimed to identify a large sample of men and women with CFS to study the etiology of the disease and subjects’ environmental exposures from before and after the time they became ill. Results are being finalized and reviewed for publication.