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Objective: Parent responses can have a major impact on their child's pain. The purpose of this systematic review is to (a) identify and describe measures assessing pain-related cognitive, affective, and behavioral responses in parents of children with chronic pain and (b) meta-analyze reported correlations between parent constructs and child outcomes (i.e., pain intensity, functional disability, and school functioning). Prospero protocol registration ID: CRD42019125496., Methods: We conducted a systematic search of studies including a measure of parent/caregiver responses to their child's chronic pain. Study characteristics and correlations between parent measures and child outcomes were extracted. Data were summarized and meta-analyzed., Results: Seventy-nine met inclusion criteria using 18 different measures of cognitive/affective (n = 3), behavioral (n = 5), and multidimensional responses (n = 10). Measures were used a median of three times (range 1-48), predominantly completed by mothers (88%), and primarily in mixed pain samples. Psychometrics of measures were generally adequate. Meta-analyses were based on 42 papers across five measures. Results showed that each of the cognitive, affective, and behavioral parent constructs we examined was significantly associated with pain-related functional disability. A small number of measures assessing parent cognitions and affective functioning were associated with higher child pain intensity; however, the majority were not., Conclusion: Findings demonstrate that there is a wealth of measures available, with adequate reliability overall but a lack of psychometrics on temporal stability. Synthesizing data across studies revealed small effects between parent responses and child functioning, and even smaller and/or absent effects on child pain intensity., (© The Author(s) 2020. Published by Oxford University Press on behalf of the Society of Pediatric Psychology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Pain-related fear is typically associated with avoidance behavior and pain-related disability in youth with chronic pain. Youth with elevated pain-related fear have attenuated treatment responses; thus, targeted treatment is highly warranted. Evidence supporting graded in vivo exposure treatment (GET) for adults with chronic pain is considerable, but just emerging for youth. The current investigation represents the first sequential replicated and randomized single-case experimental phase design with multiple measures evaluating GET for youth with chronic pain, entitled GET Living. A cohort of 27 youth (81% female) with mixed chronic pain completed GET Living. For each participant, a no-treatment randomized baseline period was compared with GET Living and 3- and 6-month follow-ups. Daily changes in primary outcomes fear and avoidance and secondary outcomes pain catastrophizing, pain intensity, and pain acceptance were assessed using electronic diaries and subjected to descriptive and model-based inference analyses. Based on individual effect size calculations, a third of participants significantly improved by the end of treatment on fear, avoidance, and pain acceptance. By follow-up, over 80% of participants had improved across all primary and secondary outcomes. Model-based inference analysis results to examine the series of replicated cases were generally consistent. Improvements during GET Living was superior to the no-treatment randomized baseline period for avoidance, pain acceptance, and pain intensity, whereas fear and pain catastrophizing did not improve. All 5 outcomes emerged as significantly improved at 3- and 6-month follow-ups. The results of this replicated single-case experimental phase design support the effectiveness of graded exposure for youth with chronic pain and elevated pain-related fear avoidance.

Pain-related fear and avoidance are increasingly demonstrated to play an important role in adult and childhood chronic pain. The Fear of Pain Questionnaire for Children (FOPQC) is a 24-item measure of pain-related fear-avoidance in youth that has demonstrated good indices of reliability and validity, treatment responsiveness, and associations with brain circuitry alterations. This study describes the development and psychometric examination of the FOPQC-SF, a short form of the original measure. We selected 10 items for the short form that best represented the content and 2-factor (fear and avoidance) structure of the original measure from a cohort of 613 youth (Mage = 14.7 years) with chronic pain. Next, confirmatory factor analyses from a second sample of 526 youth (Mage = 14.7 years) with chronic pain who completed the FOPQC-SF supported the original 2-factor model but indicated that one item should be moved to the avoidance subscale. The FOPQC-SF demonstrates strong internal consistency and moderate-to-strong construct and criterion validity. The 3-month test-retest reliability estimates (N = 94) were strong, and there was preliminary evidence of responsivity to change. To aid integration into intervention trials and clinical practice, we provide clinical reference points and a criterion to assess reliable change. The short form could be used for rapid identification of pain-related fear and avoidance in youth during clinic evaluations, and is optimized for clinical registries.

Moderate to severe chronic pain is a problem for 1.7 million children, costing $19.5 billion dollars annually in the United States alone. Risk-stratified care is known to improve outcomes in adults with chronic pain. However, no tool exists to stratify youth who present with pain complaints to appropriate interventions. The Pediatric Pain Screening Tool (PPST) presented here assesses prognostic factors associated with adverse outcomes among youth and defines risk groups to inform efficient treatment decision making. Youth (n = 321, ages 8-18, 90.0% Caucasian, 74.8% female) presenting for multidisciplinary pain clinic evaluation at a tertiary care center participated. Of these, 195 (61.1%) participated at 4-month follow-up. Participants completed the 9-item PPST in addition to measures of functional disability, pain catastrophizing, fear of pain, anxiety, and depressive symptoms. Sensitivity and specificity for the PPST ranged from adequate to excellent, with regard to significant disability (78%, 68%) and high emotional distress (81%, 63%). Participants were classified into low- (11%), medium- (32%), and high- (57%) risk groups. Risk groups did not significantly differ by pain diagnosis, location, or duration. Only 2% to 7% of patients who met reference standard case status for disability and emotional distress at 4-month follow-up were classified as low risk at baseline, whereas 71% to 79% of patients who met reference standard case status at follow-up were classified as high risk at baseline. A 9-item screening tool identifying factors associated with adverse outcomes among youth who present with pain complaints seems valid and provides risk stratification that can potentially guide effective pain treatment recommendations in the clinic setting.

The current study aimed to validate the child and parent pain catastrophizing scale in a large chronic pain sample and to identify child pain catastrophizing clinical reference points. Patients and parents (n=697) evaluated at a pediatric pain program completed the Pain Catastrophizing Scale, child (PCS-C) and parent (PCS-P) reports, along with additional measures of psychological functioning. The measure's psychometric properties were examined, as were relations across demographic, pain, and psychological characteristics and pain catastrophizing. Clinical reference points were identified for the PCS-C from differences in pain catastrophizing across levels of disability, depressive symptoms, and anxiety. Overall, we did not find support for the hypothesized 3-dimension structure, and we recommend potentially removing items 7 and 8 for both the PCS-P and PCS-C as a result of floor/ceiling effects. The 11-item PCS-C is most parsimonious as a unitary construct, while the 11-item PCS-P comprises 2 factors. Although parent catastrophizing was significantly associated with child outcomes after controlling for pain level, it was no longer significant when accounting for child catastrophizing. When comparing PCS-C scores based on child outcomes, significant differences emerged for low, moderate, and high catastrophizing levels. It appears that the influence of parent catastrophizing on outcomes can be explained through its impact on child catastrophizing levels. PCS-C reference points derived from this large sample can aid clinicians in assessment and treatment planning, in turn increasing the utility of the PCS-C for both clinical and research purposes., (Copyright © 2014 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.)

Unlabelled: Factors contributing to pain following surgery are poorly understood, with previous research largely focused on adults. With approximately 6 million children undergoing surgery each year, there is a need to study pediatric persistent postsurgical pain. The present study includes patients with adolescent idiopathic scoliosis undergoing spinal fusion surgery enrolled in a prospective, multicentered registry examining postsurgical outcomes. The Scoliosis Research Society Questionnaire-Version 30, which includes pain, activity, mental health, and self-image subscales, was administered to 190 patients prior to surgery and at 1 and 2 years postsurgery. A subset (n = 77) completed 5-year postsurgery data. Pain prevalence at each time point and longitudinal trajectories of pain outcomes derived from SAS PROC TRAJ were examined using analyses of variance and post hoc pairwise analyses across groups. Thirty-five percent of patients reported pain in the moderate to severe range presurgery. One year postoperation, 11% reported pain in this range, whereas 15% reported pain at 2 years postsurgery. At 5 years postsurgery, 15% of patients reported pain in the moderate to severe range. Among the 5 empirically derived pain trajectories, there were significant differences on self-image, mental health, and age. Identifying predictors of poor long-term outcomes in children with postsurgical pain may prevent the development of chronic pain into adulthood., Perspective: This investigation explores the prevalence of pediatric pain following surgery, up to 5 years after spinal fusion surgery. Five pain trajectories were identified and were distinguishable on presurgical characteristics of age, mental health, and self-image. This is the largest study to examine longitudinal pediatric pain trajectories after surgery., (Copyright © 2013 American Pain Society. Published by Elsevier Inc. All rights reserved.)

Unlabelled: Recent research has implicated pain-related fear in relation to functional outcomes in children with chronic pain. The current study examined fear of pain, disability, and depression within the context of an intensive pain rehabilitation program. One hundred forty-five children and adolescents who participated in an intensive interdisciplinary pediatric pain rehabilitation day program were assessed in this study. Patients completed measures of pain intensity, pain-related fears, functional disability, and depressive symptoms at admission, discharge, and on average, 2 months postdischarge. After controlling for pain intensity, pain-related fear was significantly related to disability and depressive symptoms at all time points. As predicted, a decline in pain-related fear was significantly associated with a decrease in disability and depressive symptoms. Interestingly, high levels of pain-related fears at admission predicted less reduction in functional disability and depression at discharge, suggesting that high levels of pain-related fear may be a risk factor in relation to treatment outcomes. Overall, results indicate that the relationship between fear of pain and changes in disability and depressive symptoms are closely linked, with fear of pain playing an important role in treatment., Perspective: This paper presents results underscoring the importance of pain-related fear in relation to treatment response for children and adolescents with chronic pain. These findings support the need to develop and implement interventions that target reductions in pain-related fear., (Copyright © 2012 American Pain Society. Published by Elsevier Inc. All rights reserved.)

Despite the clinical importance of readiness to change in predicting treatment outcomes among adults, no studies have examined this construct among pediatric pain patients. Because parents play a key role in adolescent pain management, both adolescent and parent readiness to adopt a self-management approach to pain merit further study. The primary goal of the current study was to validate adolescent and parent-report adaptations of the adult Pain Stages of Change Questionnaire (PSOCQ). Participants included 259 adolescent patients with chronic pain syndromes and their parents presenting to 2 pediatric pain management clinics. Using confirmatory factor analytic techniques, a 4-factor solution was supported for the parent version (PSOCQ-P) that included Precontemplation, Contemplation, Action, and Maintenance factors, whereas the adolescent version (PSOCQ-A) version supported a three-factor model that combines the Action and Maintenance scales. Within both versions, each of the factors was found to be internally consistent. The PSOCQ-A and PSOCQ-P showed evidence of criterion validity through significant correlations with coping strategies and pain catastrophizing. Stability findings at 4 and 8 weeks after a multidisciplinary pain clinic evaluation are reported. Associations between pediatric PSOCQ scores and demographic, pain, and functional domains were explored to inform future research. Further validation of the PSOCQ-A and PSOCQ-P measures with new, separate samples of pediatric pain patients and parents are needed before use in clinical contexts., (Copyright © 2011 International Association for the Study of Pain. All rights reserved.)

This study sought to evaluate the extent to which the pain coping profiles observed by Walker and colleagues in a sample of patients with chronic abdominal pain also were evident in a sample of adolescent patients who presented to a tertiary care clinic for evaluation of a variety of diverse pain conditions. In addition, we aimed to evaluate the relation of these pain coping profiles to patients' emotional and physical functioning. Participants (n=254) were adolescent patients aged 12-17 years. Patients completed the Pain Response Inventory (PRI) as well as measures of pain, somatic symptoms, anxiety and depressive symptoms, and functional disability. Using the PRI classification algorithm developed by Walker and colleagues, we successfully classified all the patients in our sample. We also found that the pain coping profiles successfully differentiated among patients with different levels of symptoms, disability, and emotional distress, further demonstrating the external validity of these profiles. Results have implications for tailoring pain treatment interventions to patients' particular coping profiles.