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2 Case Definitions
Pages 23-30

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From page 23...
... . Population-based studies have found a higher prevalence of symptom reporting in Gulf War veterans than in nondeployed Gulf War era veterans or other control groups (Goss Gilroy Inc., 1998; Iowa Persian Gulf Study Group, 1997; Unwin et al., 1999)
From page 24...
... . TABLE 2.1 Postwar Illnesses War Syndrome or Illness US Civil War Da Costa syndrome, irritable heart syndrome World War I Soldier's heart or the effort syndrome World War II Acute combat stress reaction, battle fatigue, combat exhaustion Korean Conflict Acute combat stress reaction Vietnam War Post-Vietnam syndrome, posttraumatic stress disorder With regard to specific symptoms reported by the veterans of the 1990–1991 Gulf War, numerous studies have been conducted and details of the symptoms reported.
From page 25...
... TABLE 2.2 Elements of a Case Definition Element Descriptive Feature Person Age Sex Occupation Exclusion criteria Race Place Geographic location Time Illness onset Clinical features Depend on the condition to be defined Laboratory criteria Blood tests, imaging, and so on SOURCE: Adapted from CDC, 2008. A case definition may include criteria that can be used effectively to identify a patient population and distinguish it from patient populations that have similar recognized diagnoses.
From page 26...
... Despite the progress, however, there is still no accurate diagnostic test or proven treatment. Like chronic multisymptom illness, the term chronic fatigue syndrome has been criticized as being vague and trivializing the illness.
From page 27...
... In the numerous symptom studies reviewed by the committee, the array of symptoms reported makes it difficult to identify hallmark characteristics of the illness. In addition, the symptoms detailed in Gulf War veterans are shared by other symptom-based disorders, such as CFS and FM, and are seen in the general adult population.
From page 28...
... 1998. Chronic multisymptom illness affecting Air Force veterans of the Gulf War.
From page 29...
... 2011. Longitudinal health study of US 1991 Gulf War veterans: Changes in health status at 10-year follow-up.


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