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Dsm 5 criteria for severe ptsd4/13/2024 ![]() In fact, the prevalence rate for ca-PTSD has been documented to be considerably lower when utilizing the latter approach, ranging from 0 to 22% ( 3). The majority of research has been based on self-report questionnaires which has tended to inflate the rates of ca-PTSD (with prevalence rates as high as 55%) compared to studies that have used the gold-standard assessment method of structured, clinical diagnostic interviews ( 4). Since 1994, there has been a proliferation of studies investigating the prevalence and characteristics of cancer-related PTSD (ca-PTSD). ![]() Therefore, in the Fourth Edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), being diagnosed with a life-threatening illness such as cancer was included for the first time as a potential traumatic event that could induce posttraumatic stress disorder (PTSD) ( 2). Indeed, cancer-related distress is common at pivotal periods in the prototypical trajectory of a cancer patients’ experience (including the diagnostic, treatment, recovery, and recurrence phases) and ranges on a continuum from normal, acute responses which may comprise initial fear post-diagnosis, to more severe, potentially chronic stress reactions that adversely impact functionality and general well-being. To this end, in 2009, the International Psycho-Oncology Society endorsed distress as the sixth vital sign in cancer care ( 1). It is well documented that being diagnosed and treated for cancer is understandably, a challenging experience associated with heightened distress.
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