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Abstract
Background: Childhood adversities and emotional dysregulation are connected with chronic pain, alexithymia, and depression. Longitudinal studies exploring the impact of their co-occurrence on the pain situation are rare.
Aims: The influence of alexithymia, depression, baseline pain situation, and treatment options on the course of chronic pain in a clinical sample was studied.
Methods: The baseline data was collected from chronic pain patients (n = 154) before their first pain clinic visit, and the follow-up data after 1 year by self-report questionnaires. Study variables consisted of pain intensity, pain disability, alexithymia (TAS-20), depression (BDI-II), and treatment interventions. Statistical analyses were performed to find out differences between baseline and follow-up, as well as between alexithymic and non-alexithymic patients, and to estimate the effect of the treatment provided.
Results: At follow-up, the majority of the patients had pain intensity and disability severe enough to disrupt with their daily living. None of treatment interventions was related to better outcome. Alexithymic patients reported more pain disability and depression at both baseline and at follow-up. The effect of alexithymia on pain disability was mediated by depression. The use of opioids was connected to alexithymia and depressiveness. Alexithymia and depression made a substantial contribution to poorer outcome.
Conclusions: Severe pain intensity and disability with depression and alexithymia predicted difficulties in achieving improvement. Depression and alexithymia probably impair compliance with treatment and adherence to interventions. Their co-occurrence with a more severe pain situation and with the use of opioids indicates psychological problems underlying the pain experience.
Disclosure statement
The study was supported by a grant from the Signe and Ane Gyllenberg Foundation. The funding foundation had no role in study design, in the collection and analysis of data, in the writing of the manuscript, and in the decision to submit it for publication. The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.