• Tiffany Kichline, Christopher C Cushing, Mark Connelly, William R Black, Laura E Simons, Craig Friesen, and Jennifer V Schurman.
• Clinical Child Psychology Program, University of Kansas, Lawrence, KS.
• Clin J Pain. 2022 Sep 1; 38 (9): 562-567.

ObjectivesCurrent literature in pediatric pain evaluates the Fear Avoidance model (FAM) pathways at the trait (or macrotemporal) level, but it is unknown if these pathways also occur at the state (or microtemporal) level. Identifying microtemporal processes can improve our understanding of how the relationships within the Fear Avoidance constructs vary when specific Fear Avoidance variables wax and wane. We hypothesized that changes in FAM constructs would be associated with changes in the next variable in the sequence on a microtemporal level, including: (1) higher pain when there is more pain-related fear, (2) higher pain-related fear when there is more avoidance, and (3) higher avoidance when there is more reported disability.Methods71 pediatric patients with chronic abdominal pain ( M =13.34 y, SD=2.67 y) reported pain severity, pain-related fear, and avoidance via ecological momentary assessments over 14 days.ResultsOur results indicated significant microtemporal relationships between Fear Avoidance constructs for pain predicting pain-related fear, pain-related fear predicting avoidance, and avoidance predicting disability.DiscussionThe current study suggests that the ways in which the FAM is related to various aspects of pain functioning differs on a state-level, which adds new clinical and research opportunities.Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.

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