Chronic fatigue syndrome and depression: conceptual and methodological ambiguities

Ray, Colette

doi:10.1017/s0033291700014586

Cited by 97 publications

(53 citation statements)

References 67 publications

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“…As there is a general impression that features of fatigue manifest as underlying depression [3] it is important to define and quantitatively measure these two separate domains. To better understand and quantify fatigue severity many scales have been developed [12].…”

Section: Measuring Fatigue and Depressionmentioning

confidence: 99%

“…It is a known symptom of advanced lung diseases that impacts quality of life and psychological health [2]. There is a general impression that features of fatigue manifest as underlying depression [3] however, each differ and may represent different aspects of underlying psychological impairment. Measurement of fatigue has been utilized in many neurological [4] and rheumatological [5] disorders but has yet to gain popularity in pulmonary medicine.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Pulmonary Rehabilitation on Fatigue Severity Scale In Patients with Lung Disease

Talwar

Sahni

John

et al. 2014

Advances in Respiratory Medicine

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Introduction: Fatigue is a known symptom of advanced lung disease and impacts quality of life and psychological health. Many of these patients undergo pulmonary rehabilitation as part of their therapy. Understanding the effect of pulmonary rehabilitation on fatigue in these patients is important, as one may be able to design more focused rehabilitation programs. The aim of this study is to evaluate the effect of pulmonary rehabilitation on fatigue as measured by the Fatigue Severity Scale (FSS) in patients with advanced lung disease. Material and Methods: Patients were enrolled in a standardized 6 week pulmonary rehabilitation program. They were asked to complete questionnaires to evaluate their self-reported fatigue (FSS), and depression as measured by Geriatric Depression Scale (GDS). The GDS is a self-reported assessment tool used to identify depression in patients. The FSS is a validated instrument that indicates a perception of fatigue that might require medical intervention. Participants completed questionnaires both at baseline and after completing the standardized pulmonary rehabilitation program. Data was analyzed in Statistical Analysis System (SAS). The change in FSS was evaluated using the Wilcoxon signed-rank test. p-values < 0.05 were considered statistically significant. Results: 21 patients (12 females; 9 males; mean age 64.3 ± 11.2 yrs) were considered for the study. Pre-pulmonary rehabilitation FSS scores ranged from 1.6 to 6.7 (mean score of 4.6 ± 1.7). Post pulmonary rehabilitation FSS scores ranged 1.0 to 6.2 (mean score of 3.9 ± 1.6). The median pre-rehabilitation FSS was 5.3 (inter quartile range; Q1–Q3: 3.0–6.1), and median post rehabilitation FSS was 3.9 (inter quartile range; Q1–Q3: 2.6–5.1). There was a significant decrease in FSS scores after completing pulmonary rehabilitation program (p < 0.0208). There was a decrease in GDS (pre-rehabilitation, mean: 5.5 ± 3.6; post-rehabilitation, mean: 4.2 ± 2.9), but this decrease was not statistically significant. The change in GDS correlated with the change in FSS (Spearman Correlation Coefficient 0.525, p < 0.0146). Conclusions: Patients with advanced lung disease reported a measurable component of fatigue. Participating in pulmonary rehabilitation resulted in significant improvement in patient’s self-reported fatigue severity. Further studies are necessary to evaluate and design interventions to improve fatigue in in the setting of advanced lung disease.

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Section: Measuring Fatigue and Depressionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Pulmonary Rehabilitation on Fatigue Severity Scale In Patients with Lung Disease

Talwar

Sahni

John

et al. 2014

Advances in Respiratory Medicine

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“…A psychological factor that attracts relatively a good deal attention in this respect is depression [2,6,16,18]. Although less frequently reported than fatigue, feelings of depression are common in cancer patients.…”

Section: Introductionmentioning

confidence: 99%

“…Most studies report a prevalence of about 20-25% [11,13,15]. However, these figures do vary, depending on, for instance, the kind of assessment that is used [15,18,21]. Several risk factors predispose patients with cancer to depressive disorder.…”

Section: Introductionmentioning

confidence: 99%

Fatigue, depression and quality of life in cancer patients: how are they related?

Visser¹,

Smets²

1998

Support Care Cancer

315

203

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In a study concerning a group of cancer patients undergoing radiotherapy three research questions were addressed. (1) Is fatigue a valid criterion for depression in these somatically ill patients? (2) What is the 'cause-andeffect' relation between fatigue and depression? (3) To what extent are fatigue and depression related to patients' quality of life. A heterogeneous sample of cancer patients (n p 250) were interviewed before treatment, 2 weeks after treatment and 9 months later. Fatigue was measured using the MFI, a self-report instrument covering five dimensions of fatigue. Depression was assessed with the non-somatic items of the CES-D. Quality of life had to be indicated on a Cantrill ladder. Fatigue and depression do not follow the same course over time. Just after radiotherapy, fatigue had either increased or remained stable, depending on the dimension under consideration. Depression, in contrast, decreased. Nine months later fatigue had decreased, whereas levels of depression remained stable. Concurrent relations between fatigue and depression were mostly moderate. There was no strong evidence for a cause-and-effect relationship between depression and fatigue. Depression showed highest concurrent relationships with quality of life, especially before treatment. Prospectively, depression and the dimension of physical fatigue were the main predictors for quality of life. Fatigue is not a valid criterion for depression in these patients. Nor is there a strong cause-and-effect relationship. Both depression and physical fatigue are relevant to patients' quality of life.

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“…sustains feelinas of fatigue (Wessely et al 1990). Chronic fatigue is also commonly found to be related to feelings of depression or anxiety (Wessely et al 1990: Ray. 1991: Belza.…”

mentioning

confidence: 99%

Fatigue and radiotherapy: (B) experience in patients 9 months following treatment

Visser²,

et al. 1998

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Summary Little is known regarding the prevalence and course of fatigue in cancer patients after treatment has ended and no recurrence found. The present study examines fatigue in disease-free cancer patients after being treated with radiotherapy (n = 154). The (Breij and Visser. 1990). 61%7 of the subjects reported fatigue that w-as described as 'moderate to quite bad'. Treatment had ended more than 2 vears before the sunrey in 60%e of the sample. Lastly.

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Chronic fatigue syndrome and depression: conceptual and methodological ambiguities

Cited by 97 publications

References 67 publications

Effects of Pulmonary Rehabilitation on Fatigue Severity Scale In Patients with Lung Disease

Effects of Pulmonary Rehabilitation on Fatigue Severity Scale In Patients with Lung Disease

Fatigue, depression and quality of life in cancer patients: how are they related?

Fatigue and radiotherapy: (B) experience in patients 9 months following treatment

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