Disability in Chronic Fatigue Syndrome and Idiopathic Chronic Fatigue

Main Article Content

Adam W. Carrico
Leonard A. Jason
Elizabeth Witter
Susan Torres-Harding

Keywords

chronic fatigue syndrome, idiopathic chronic fatigue, disability classification, functional impairment

Abstract

The current investigation classified 31 people with chronic fatigue syndrome (CFS) and 44 people with idiopathic chronic fatigue (ICF) into mild, moderate, and severe/very severe categories of self reported functional impairment. Differences in sociodemographic characteristics, symptom frequency, symptom severity, and functional impairment were examined between individuals with CFS and ICF, and were examined among the three categories of functional impairment. Results indicated that there were no differences between the CFS and ICF groups in their functional impairment classification. People who were classified into the more disabled categories reported more severe symptoms, and were more likely to have scores indicating higher disability on other measures of functional status. Implications of these findings are discussed.
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References

Anderson, J. S., and Ferrans, C. E. (1997). The quality of life of persons with chronic fatigue syndrome. J. Nerv. Men. Dis., 185: 359 367.

Brazier, J. E., Harper, R., Jones, N. M. B., O'Cathain, A., Thomas, K. J., Usherwood, T., and Westlake, L. (1992). Validating the SF 36 health survey questionnaire: New outcome measure for primary care. B.M.J., 305: 160 164.

Buchwald, D., Pearlman, T., Umali, J., Schmaling, K., and Katon, W. (1996). Functional status in patients with chronic fatigue syndrome, other fatiguing illnesses, and healthy individuals. Am. J. Med., 101: 364 370.

Chalder, T., Berelowitz, G., Pawlikowska, T., Watts, L., Wessely, S., Wright, D., and Wallace, E. P. (1993). Development of a fatigue scale. J. Psychosom. Res., 37(2): 147 153.

Cox, D. L. and Findley, L. J. (2000). Severe and very severe patients with chronic fatigue syndrome: Perceived outcome following an inpatient program. J. Chronic Fatigue Syndrome, 7(3): 33 47.

Friedberg, F., and Jason, L. A. (1998). Understanding chronic fatigue syndrome: a guide to assessment and treatment, American Psychological Association, Washington DC.

Fukuda, K., Straus, S. E., Hickie, I., Sharpe, M. C., Dobbins, J. G., and Komaroff, A. (1994). The chronic fatigue syndrome: A comprehensive approach to its definition and study. Ann. Intern. Med., 121: 953 959.

Hartz, A. J., Kuhn, E. M., and Levine, P. H. (1998). Characteristics of fatigued persons associated with features of chronic fatigue syndrome. J Chronic Fatigue Syndrome. 4(3): 71 97.

Hollingshead, A. B. (1995). Four factor index of social status. Unpublished manuscript.

Holmes, G. P. (1991). Defining chronic fatigue syndrome. Rev. Infect. Dis., 13: 53 55.

Jason, L. A., King, C. P., Richman, J. A., Taylor, R. R., Torres, S. R., and Song, S. (1999). U.S. case definition of chronic fatigue syndrome: Diagnostic and theoretical issues. J. Chronic Fatigue Syndrome, 5(3/4): 3 33.

Jason, L. A., Richman, J. A., Rademaker, A. W., Jordan, K. M., Plioplys, A. V., Taylor, R. R., McCready, W., Huang, C. F., and Plioplys, S. (1999). A community based study of chronic fatigue syndrome. Arch. Intern. Med., 159(18): 2129 2137.

Jason, L. A., Ropacki, M. T., Santoro, N. B., Richman, J. A., Heatherly, W., Taylor, R. R., Ferrari, J. R., Haney Davis, T. M., Rademaker, A., Dupuis, J., Golding, J., Plioplys, A. V., and Plioplys, S. (1997). A screening scale for chronic fatigue syndrome: Reliability and validity. J. Chronic Fatigue Syndrome, 3: 39 59.

Jason, L. A., Wagner, L., Taylor, R. R., Ropacki, M. T., Shlaes, J., Ferrari, J. R., Slavich, S. P., and Stenzel, C. (1995). Chronic fatigue syndrome: A new challenge for health care professionals. J. Comm. Psychology, 23: 143 164.

Kish, L. (1965). Survey sampling, Wiley, New York.

Komaroff, A. L., Fagioli, L. R., Geiger, A. M., Doolitle, T. H., Lee, J., Kornish, J., Gleit, M. A., and Guerriero, R. T. (1996). An examination of the working case definition of chronic fatigue syndrome. Am. J. Med., 100: 56 64.

McHorney, C. A., Ware, J. E., Jr., Lu, J. F. R., and Sherbourne, C. D. (1994). The MOS 36 item short form health survey (SF 36): III. Tests of data quality, scaling assumptions, and reliability across diverse patient groups. Medical Care, 32(1): 40 66.

McHorney, C. A., Ware, J. E., Jr., and Raczek, A. E. (1993). The MOS 36 item short form health survey (SF 36): II. Psychometric and clinical test of validity in measuring physical and mental health constructs. Medical Care, 31(3): 247 263.

McHorney, C. A., Ware, J. E., Jr., Rogers, W., Raczek, A. E., and Lu, J. F.R. (1992). The validity and relative precision of MOS short and long form health status scales and Dartmouth COOP charts. Medical Care, 30(5): MS253 256.

Nisenbaum, R., Reyes, M., Mawle, A. C., and Reeves, W. (1998). Factor analysis of unexplained severe fatigue and interrelated symptoms. Am. J. Epidemiology, 148(1): 72 77.

Pawlikowska, T., Chalder, T., Hirsch, S. R., Wallace, P., Wright, D. J. M. and Wessely, S. C. (1994). Population based study of fatigue and psychological distress. B.M.J., 308: 763 766.

Rubinson, E. P., and Asnis, G. M. (1989). Use of structured interviews for diagnosis. In Wetzler, S. (ed.), Measuring mental illness: Psychometric assessment for clinicians, American Psychiatric Press, Inc., Washington, D. C., pp. 45 66.

Spitzer, R. L., Williams, J. B. W., Gibbon, M., and First, M. B. (1995). Structured Clinical Interview for the DSM IV: Non patient edition (SCID NP, Version 2.0), American Psychiatric Press, Washington, D. C.

Taylor, R. R., and Jason, L. A. (1998). Comparing the DIS with the SCID: Chronic fatigue syndrome and psychiatric comorbidity. Psychology and Health, 13: 1087 1104.

Ware, J. E., Jr., and Sherbourne, C. D. (1992). The MOS 36 item short form health survey (SF 36): I. Conceptual framework and item selection. Medical Care, 30(6): 473 483.

Wasser, T. E. (1991, August). Statistical correction of Hollingshead's Four Factor Index of Social Status. Paper presented at the American Psychological Association, San Francisco, CA.

Wessely, S., and Powell, R. (1989). Fatigue syndromes: A comparison of chronic "postviral" fatigue with neuromuscular and affective disorders. J. Neurol. Neurosurgery Psych., 52: 940 948.