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. 2018 Sep-Oct;59(5):481-489.
doi: 10.1016/j.psym.2018.02.004. Epub 2018 Mar 1.

Depressive Symptoms and Suicidal Ideation Among Symptomatic Patients With a History of Lyme Disease vs Two Comparison Groups

Shreya Doshi  1 , John G Keilp  2 , Barbara Strobino  3 , Martin McElhiney  3 , Judith Rabkin  3 , Brian A Fallon  3
Affiliations

Depressive Symptoms and Suicidal Ideation Among Symptomatic Patients With a History of Lyme Disease vs Two Comparison Groups

Shreya Doshi et al. Psychosomatics. 2018 Sep-Oct.

Abstract

Background: Depression has been reported in 8-45% of patients with posttreatment Lyme symptoms (PTLS), but little is known about suicidal ideation in these patients.

Method: Depression and suicidal ideation were assessed using the Beck Depression Inventory (BDI-II). Scores from the PTLS group (n = 81) were compared to those from 2 other groups: HIV+ patients being treated for fatigue (n = 70), and a nonpatient comparison group (NPCG; n = 44). ANOVA and t-tests were used to compare groups; logistic regression was used to identify the strongest correlates of suicidal ideation.

Results: Mean BDI-II scores fell in the mildly depressed range for PTLS and HIV+ patients, with both groups having higher depression scores than the NPCG. Suicidal ideation was reported by 19.8% of the PTLS patients and 27.1% of the HIV+ patients, a nonsignificant difference. Among those with mild or no depression, suicidal ideation was uncommon (6.5% PTLS and 11.9% HIV+). Among the patients with moderate-to-severe depression, suicidal ideation was more common (63.2% of 19 PTLS and 50% of 28 HIV+); among these, 2 with PTLS and 1 with HIV+ expressed suicidal intent. Further, 4.5% (n = 2) of the NPCG had suicidal ideation, each had scores in the moderate-to-severe depression range. Higher scores on the cognitive symptoms subscale of the BDI-II predicted greater likelihood of suicidal ideation across patient groups.

Conclusion: As expected, suicidal ideation is increased among patients who are depressed. The fact that 1 in 5 patients with PTLS reported suicidal ideation highlights the importance of screening for depression and suicidality to optimize patient care.

Keywords: Lyme disease.; chronic illness; depression; suicide.

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Conflict of interest statement

Disclosure: The authors report no proprietary or commercial interest in any product mentioned or concept discussed in this article.

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