Introduction: Earlier detection and improved treatment of neuroendocrine tumors (NETs) have prolonged survivorship in NET patients. We undertook this study to understand the prevalence of NET-related posttraumatic stress disorder (PTSD) and the factors and cancer-related illness beliefs associated with PTSD.
Methods: We recruited patients with a diagnosis of NET from a large NET center in New York City. Cancer-related PTSD was assessed using the Revised Impact of Events scale (IES), with probable PTSD as ≥ 33. We used the Brief Illness Perception Questionnaire (BIPQ) to assess NET-related beliefs. Data on baseline patient characteristics were collected. Comparisons used chi-squares and Fisher exact tests, as appropriate.
Results: Of the 73 participants, 48 (66%) were female and the mean age was 60 years (standard deviation (SD) 11.7, see Table 1). Twelve patients (16%) met criteria for probable NET-related PTSD. Women were more likely to meet criteria for probable PTSD (15% vs. 1%, p = 0.04). Those who met criteria for probable PTSD were more likely to have higher overall scores on the BIPQ (64 vs. 57, p = 0.03), report constantly feeling unwell due to their cancer (4 vs. 1, p = 0.04), as well as report more physical and emotional symptoms from their cancer (5 vs. 1, p = 0.03, and 7 vs. 4, p = 0.02, respectively).
Conclusion: NET patients with probable PTSD were more likely to be women with greater physical and emotional burden due to their cancer. Our findings suggest that specific threatening cancer-related beliefs, not disease characteristics, predict a higher risk of PTSD among NET survivors.
Keywords: Cancer; Cancer beliefs; Neuroendocrine tumors; Posttraumatic stress disorder; Survivorship.