DePaul Symptom Questionnaire

The  DePaul Symptom Questionnaire is a self-report assessment created by Leonard Jason and the Chronic Fatigue Syndrome Project at DePaul University, Chicago, Illinois, USA. It was developed in 2010 as a standard questionnaire to consistently assess the principle symptoms of ME/CFS when diagnosing. . It has been used by Prof Julia Newton in her clinical studies.

Studies

 * 2016, The utility of patient-reported outcome measures among patients with myalgic encephalomyelitis/chronic fatigue syndrome."'RESULTS: The general and physical fatigue subscales on Multidimensional Fatigue Inventory-20, as well as the role of physical health on the RAND SF-36, demonstrated questionable or unacceptable internal consistency and problematic ceiling effects. The DePaul Symptom Questionnaire demonstrated excellent internal reliability, and less than 5 % of participants were at the ceiling on each subscale. The post-exertional malaise subscale on the DePaul Symptom Questionnaire demonstrated excellent clinical utility as it was able to differentiate between ME/CFS patients and controls (OR 1.23, p < .001) and predicted ceiling effects on other patient-reported outcome subscales. A score of 20 on the post-exertional malaise subscale of the DePaul Symptom Questionnaire optimally differentiated between patients and controls.'"
 * 2016, Comparing the DePaul Symptom Questionnaire with physician assessments: a preliminary study"'Results: The DSQ identified 60 and the physicians identified 56 as having a CCC [Canadian Consensus Criteria] diagnosis. The overall agreement between the two ratings on the diagnostic assessment part was moderate (Kappa = 0.45, p < .001). The sensitivity of DSQ was good (98%) while the specificity was 38%. Positive and negative predictive values were 92% and 75%, respectively. Conclusion: DSQ is useful for detecting and screening symptoms consistent with a CCC diagnosis in clinical practice and research. However, it is important for initial screening of self-report symptoms to be followed up by subsequent medical and psychiatric examination in order to identify possible exclusionary medical and psychiatric disorders.'"
 * 2015, Test–retest reliability of the DePaul Symptom Questionnaire"'Methods: Test–retest reliability of the measure was examined with a sample of 26 adults self-identifying as having either ME/CFS, ME, and/or CFS and 25 adults who did not self-identify as having these illnesses and were otherwise healthy controls. Results: Overall, the majority of items on the DSQ exhibited good to excellent test–retest reliability, with Pearson's or kappa correlation coefficients that were 0.70 or higher.'"
 * 2014, Validating a measure of myalgic encephalomyelitis/chronic fatigue syndrome symptomatology."'Methods: Exploratory factor analysis (EFA) was used to establish the underlying factor structure of the DePaul Symptom Questionnaire (DSQ) using a well-characterized sample of individuals (92.6% met the Fukuda et al. criteria and/or the Clinical Canadian Criteria) and this structure was then tested on a less stringently recruited sample of individuals utilizing a confirmatory factor analysis (CFA). Convergent and discriminant validity of the DSQ were also examined utilizing alternative measures of symptomatology and functioning. Results: A three-factor solution was found using EFA (Neuroendocrine, Autonomic, and Immune Symptoms; Neurological/Cognitive Dysfunction; Post-Exertional Malaise) and the fit of this factor structure was adequate for the second sample. The DSQ was found to have good convergent and discriminant validity. Conclusions: The DSQ is a valid tool for assessing ME/CFS symptoms. There may be two core ME/CFS symptom clusters: post-exertional malaise and cognitive dysfunction.'"

Learn more

 * [www.iacfsme.org/Portals/0/pdf/kingquestionnaire.pdf DePaul Symptom Questionnaire]
 * WAMES: List of studies using the DePaul sympton questionnaire