Jason – Page 21 – American ME and CFS Society

Sexual abuse, physical abuse, chronic fatigue, and chronic fatigue syndrome: a community-based study

Abstract:

Using a randomly selected community-based sample, this investigation examined whether histories of childhood sexual, physical, and death threat abuse predicted adulthood outcomes of specific medical and psychiatric conditions involving chronic fatigue. This study also tested prior suggestions that most individuals with chronic fatigue syndrome report a past history of interpersonal abuse.

Multinomial logistic regression was used to examine the relationship between abuse history and chronic fatigue group outcomes while controlling for the effects of sociodemographics. Compared with healthy controls, childhood sexual abuse was significantly more likely to be associated with outcomes of idiopathic chronic fatigue, chronic fatigue explained by a psychiatric condition, and chronic fatigue explained by a medical condition. None of the abuse history types were significant predictors of chronic fatigue syndrome.

A closer examination of individuals in the chronic fatigue syndrome group revealed that significantly fewer individuals with CFS reported abuse as compared with those who did not. The implications of these findings are discussed.

Source: Taylor RR, Jason LA. Sexual abuse, physical abuse, chronic fatigue, and chronic fatigue syndrome: a community-based study. J Nerv Ment Dis. 2001 Oct;189(10):709-15. http://www.ncbi.nlm.nih.gov/pubmed/11708672

A community-based study of seasonal variation in the onset of chronic fatigue syndrome and idiopathic chronic fatigue

Abstract:

One proposed hypothesis regarding the etiology of chronic fatigue syndrome (CFS) is that there is a subgroup of patients in which symptom onset is precipitated by a viral infection. If this is indeed true, then one would anticipate a greater incidence of the emergence of CFS symptoms during months when viral infections occur with the greatest frequency. The current community-based epidemiology study examined the month of symptom onset for 31 patients with CFS and 44 others with idiopathic chronic fatigue (ICF). It was determined that the distribution of the month of illness onset for the CFS and ICF groups was nonrandom, with greater numbers of participants than expected reporting an onset of CFS and ICF during January.

Source: Jason LA, Taylor RR, Carrico AW. A community-based study of seasonal variation in the onset of chronic fatigue syndrome and idiopathic chronic fatigue. Chronobiol Int. 2001 Mar;18(2):315-9. http://www.ncbi.nlm.nih.gov/pubmed/11379670

Chronic fatigue syndrome and fibromyalgia: clinical assessment and treatment

Abstract:

Chronic fatigue syndrome (CFS) and fibromyalgia (FM) are closely related illnesses of uncertain etiology. This article reviews the research literature on these biobehavioral conditions, with an emphasis on explanatory models, clinical evaluation of comorbid psychiatric disorders, assessment of stress factors, pharmacologic and alternative therapies, and cognitive-behavioral treatment studies. Furthermore, clinical protocols suitable for professional practice are presented based on an integration of the authors’ clinical observations with published data. The article concludes with the recognition that mental health professionals can offer substantial help to these patients.

Source: Friedberg F, Jason LA. Chronic fatigue syndrome and fibromyalgia: clinical assessment and treatment. Clin Psychol. 2001 Apr;57(4):433-55. http://www.ncbi.nlm.nih.gov/pubmed/11255201

Chronic fatigue syndrome: an examination of the phases

Abstract:

The present study examined the Fennell Phase Inventory, an instrument designed to measure the phases typically experienced by individuals with chronic fatigue syndrome (CFS). This inventory yields three factor scores of Crisis, Stabilization, and Integration. These factor scores have been employed in a cluster analysis, yielding four clusters that matched the four phases predicted by Fennell: Crisis, Stabilization, Resolution, and Integration. The present study represents a partial replication study of a prior investigation of the Fennell Phase Inventory by Jason et al. (in press), but that earlier study did not have an independent physician examination to diagnose patients with CFS.

In the present study, 65 patients diagnosed with chronic fatigue syndrome by a physician were recruited and administered the Fennell Phase Inventory and other measures assessing CFS-related symptoms, disability, and coping. Each of the 65 patients was classified into one of four predefined clusters measuring a Crisis phase, a Stabilization phase, a Resolution phase, and an Integration phase. Relationships were explored between three of these cluster groupings and measures of symptoms, disability, and coping.

Results confirmed Fennell’s model, revealing significant differences between the three clusters in terms of levels of disability and modes of coping. Results suggest that the Fennell Phase Inventory accurately differentiates phases of adaptation to illness experienced by individuals with CFS.

Source: Jason LA, Fricano G, Taylor RR, Halpert J, Fennell PA, Klein S, Levine S. Chronic fatigue syndrome: an examination of the phases. J Clin Psychol. 2000 Dec;56(12):1497-508. http://www.ncbi.nlm.nih.gov/pubmed/11132566

Attitudes regarding chronic fatigue syndrome: the importance of a name

Abstract:

Undergraduates from diverse academic backgrounds and medical trainees were assessed regarding their attitudes about and familiarity with chronic fatigue syndrome (CFS). We explored whether different names given to chronic fatigue syndrome (CFS, myalgic encephalopathy, or Florence Nightingale disease) were associated with differences in attributions regarding its cause, nature, severity, contagion, prognosis, and treatment. Participants’ attributions toward the illness varied with the names used to characterize it.

Participants prompted with the myalgic encephalopathy name were more likely to attribute a biomedical cause to the illness, and less likely to consider patients as candidates for organ donation than those prompted with the CFS name. Although the medical trainees were less likely to consider the patient as malingering, and more likely to view the illness as leading to poorer quality of life and a poorer prognosis, they were also more likely to consider the illness a form of primary depression, more likely to think the patient would attempt suicide, and less likely to consider associated cognitive symptoms as severe. The implications are discussed.

Source: Jason LA, Taylor RR, Stepanek Z, Plioplys S. Attitudes regarding chronic fatigue syndrome: the importance of a name. J Health Psychol. 2001 Jan;6(1):61-71. Doi: 10.1177/135910530100600105. http://www.ncbi.nlm.nih.gov/pubmed/22049238

Feminist perspectives on the social construction of chronic fatigue syndrome

Abstract:

We contrast Western medical views of chronic fatigue syndrome (CFS) etiology, diagnosis, and treatment with views maintained by a predominantly female CFS population. We argue that the failure of Western medicine to demonstrate a viral etiology for CFS led to a paradigmatic shift in research perspectives, which then embraced psychiatric and sociocultural explanations for CFS. As a result, CFS was delegitimized as a biomedical phenomenon within medical, academic, governmental, and public arenas.

We compare alternative social constructions of CFS with issues pertaining to multiple sclerosis (MS), an illness that similarly predominates among women. Patient perspectives suggest that the history of medical attitudes toward CFS may eventually parallel the transformations that occurred in relation to MS. In particular, the discovery of biological markers for CFS may lay to rest the categorization of CFS as largely within the psychiatric realm.

Source: Richman JA, Jason LA, Taylor RR, Jahn SC. Feminist perspectives on the social construction of chronic fatigue syndrome. Health Care Women Int. 2000 Apr-May;21(3):173-85. http://www.ncbi.nlm.nih.gov/pubmed/11111464

Fatigue rating scales: an empirical comparison

Abstract:

BACKGROUND: There has been limited research comparing the efficacy of different fatigue rating scales for use with individuals with chronic fatigue syndrome (CFS). This investigation explored relationships between two commonly-used fatigue rating scales in CFS research, the Fatigue Scale and the Fatigue Severity Scale. Theoretically, these scales have been described as measuring different aspects of the fatigue construct. The Fatigue Scale was developed as a measure of the severity of specific fatigue-related symptoms, while the Fatigue Severity Scale was designed to assess functional outcomes related to fatigue.

METHODS: Associations of these scales with the eight definitional symptoms of CFS and with eight domains of functional disability were examined separately in: (1) an overall sample of individuals with a wide range of fatigue severity and symptomatology; (2) a subsample of individuals with CFS-like symptomatology, and, (3) a subsample of healthy controls.

RESULTS: Findings revealed that both scales are appropriate and useful measures of fatigue-related symptomatology and disability within a general population of individuals with varying levels of fatigue. However, the Fatigue Severity Scale appears to represent a more accurate and comprehensive measure of fatigue-related severity, symptomatology, and functional disability for individuals with CFS-like symptomatology.

Source: Taylor RR, Jason LA, Torres A. Fatigue rating scales: an empirical comparison. Psychol Med. 2000 Jul;30(4):849-56. http://www.ncbi.nlm.nih.gov/pubmed/11037093

Chronic fatigue syndrome, fibromyalgia, and multiple chemical sensitivities in a community-based sample of persons with chronic fatigue syndrome-like symptoms

Abstract:

OBJECTIVE: The aim of this study was to determine illness comorbidity rates for individuals with chronic fatigue syndrome (CFS), fibromyalgia (FM), and multiple chemical sensitivities (MCS). An additional objective was to identify characteristics related to the severity of fatigue, disability, and psychiatric comorbidity in each of these illness groups.

METHODS: A random sample of 18,675 residents in Chicago, Illinois, was first interviewed by telephone. A control group and a group of individuals with chronic fatigue accompanied by at least four minor symptoms associated with CFS received medical and psychiatric examinations.

RESULTS: Of the 32 individuals with CFS, 40.6% met criteria for MCS and 15.6% met criteria for FM. Individuals with MCS or more than one diagnosis reported more physical fatigue than those with no diagnosis. Individuals with more than one diagnosis also reported greater mental fatigue and were less likely to be working than those with no diagnosis. Individuals with CFS, MCS, FM, or more than one diagnosis reported greater disability than those with no diagnosis.

CONCLUSIONS: Rates of coexisting disorders were lower than those reported in prior studies. Discrepancies may be in part attributable to differences in sampling procedures. People with CFS, MCS, or FM endure significant disability in terms of physical, occupational, and social functioning, and those with more than one of these diagnoses also report greater severity of physical and mental fatigue. The findings illustrate differences among the illness groups in the range of functional impairment experienced.

Source: Jason LA, Taylor RR, Kennedy CL. Chronic fatigue syndrome, fibromyalgia, and multiple chemical sensitivities in a community-based sample of persons with chronic fatigue syndrome-like symptoms. Psychosom Med. 2000 Sep-Oct;62(5):655-63. http://www.ncbi.nlm.nih.gov/pubmed/11020095

The development of the Chronic Fatigue Syndrome Attitudes Test. A psychometric analysis

Abstract:

Chronic Fatigue Syndrome (CFS) is characterized by debilitating symptoms including persistent or relapsing fatigue. As a result of CFS, some individuals experience significant stigma that is attached to this illness. Many medical professionals are skeptical of the validity of the illness, and employers often fail to appreciate the seriousness of the symptoms. Although negative attitudes greatly affect the lives of individuals with CFS, there is presently no measurement of attitudes toward this illness and people who have CFS. The purpose of the present studies was to create a scale that measures attitudes toward individuals with CFS–the Chronic Fatigue Attitudes Test (CAT)–and to assess the scale’s reliability and validity. The 13-item scale was created using several constructs outlined in the literature regarding negative attitudes toward people with CFS, disabilities, and AIDS. Theoretical implications of the findings and the utility of the CAT are discussed.

Source: Shlaes JL, Jason LA, Ferrari JR. The development of the Chronic Fatigue Syndrome Attitudes Test. A psychometric analysis. Eval Health Prof. 1999 Dec;22(4):442-65. http://www.ncbi.nlm.nih.gov/pubmed/10623400

Monitoring and assessing symptoms of chronic fatigue syndrome: use of time series regression

Abstract:

Chronic Fatigue Syndrome’s principal symptoms are severe and include prolonged fatigue and a number of other minor symptoms. Behavioral data collection methods were used in a case study to show some of the benefits that can be derived from monitoring symptoms hourly and daily. Using time series regression, several statistically significant correlates of fatigue were found both within days and between days. Perceived energy, physical exertion, and mental exertion were significantly related to fatigue in both analyses. Collection of such data may help resolve a number of theoretical and methodological problems in research on the Chronic Fatigue Syndrome.

Source: Jason LA, Tryon WW, Taylor RR, King C, Frankenberry EL, Jordan KM. Monitoring and assessing symptoms of chronic fatigue syndrome: use of time series regression. Psychol Rep. 1999 Aug;85(1):121-30. http://www.ncbi.nlm.nih.gov/pubmed/10575979