4.3 Article

Lessons Learned from an Attempted Pragmatic Randomized Controlled Trial for Improvement of Chronic Pain-Associated Disability in Green Professions: Long-Term Effectiveness of a Guided Online-Based Acceptance and Commitment Therapy (PACT-A)

Publisher

MDPI
DOI: 10.3390/ijerph192113858

Keywords

internet intervention; acceptance and commitment therapy; ACT; chronic pain; farmers; gardeners; foresters; 6-month follow-up; 12-month follow-up; randomized controlled trial

Funding

  1. German social insurance company for agriculture, forestry and horticulture (Sozialversicherung fur Landwirtschaft, Forsten und Gartenbau, SVLFG)
  2. University of Ulm
  3. central DFG funds

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Musculoskeletal symptoms are more common in farmers, but the prevalence of chronic pain in this group is unknown. Online interventions based on acceptance and commitment therapy (ACT) may be a promising approach for reducing pain interference in green professions.
Musculoskeletal symptoms are increased in farmers, whereas the prevalence of chronified pain is unknown. Online interventions based on acceptance and commitment therapy (ACT) have shown encouraging results in the general population, representing a promising approach for reducing pain interference in green professions (i.e., farmers, foresters, gardeners). We conducted a pragmatic RCT comparing a guided ACT-based online intervention to enhanced treatment-as-usual in entrepreneurs, contributing spouses, family members and pensioners in green professions with chronic pain (CPG: >= grade II, >= 6 months). Recruitment was terminated prematurely after 2.5 years at N = 89 (of planned N = 286). Assessments were conducted at 9 weeks (T1), 6 months (T2) and 12 months (T3) post-randomization. The primary outcome was pain interference (T1). The secondary outcomes encompassed pain-, health- and intervention-related variables. No treatment effect for reduction of pain interference was found at T1 (beta = -0.16, 95%CI: -0.64-0.32, p = 0.256). Improvements in cognitive fusion, pain acceptance, anxiety, perceived stress and quality of life were found only at T3. Intervention satisfaction as well as therapeutic and technological alliances were moderate, and uptake and adherence were low. Results are restricted by low statistical power due to recruitment issues, high study attrition and low intervention adherence, standing in contrast to previous studies. Further research is warranted regarding the use of ACT-based online interventions for chronic pain in this occupational group. Trial registration: German Clinical Trial Registration: DRKS00014619. Registered: 16 April 2018.

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