Ethnic similarities and differences in the chronic pain experience: a comparison of african american, Hispanic, and white patients

Use of Intervention Mapping to Adapt a Psychologically Informed Physical Therapy Telerehabilitation Intervention for Latino Persons with Chronic Spine Pain

The need for culturally tailored pain care is well recognized yet few studies report how existing interventions can be adapted to the needs of culturally and linguistically diverse (CALD) populations. This report describes a formative mixed methods approach using Intervention Mapping-Adapt (IM-Adapt) and the expanded Framework for Reporting Adaptations and Modifications to Evidence based interventions (FRAME) to adapt and report modifications of an existing physical therapy intervention for Latino persons with chronic spine pain in Federally Qualified Health clinics in the southwestern United States (US). Mixed methods included literature reviews, patient surveys, an Adaptation Advisory Panel, and sequential case series with semi-structured interviews. Six steps of IM-Adapt guided the adaptation process and adaptations were prospectively documented with FRAME. A needs assessment revealed an absence of culturally tailored physical therapy interventions for Latino persons with chronic spine pain in the US. An intervention logic model and review of the sociocultural context guided selection of essential interventions, determinants of behavior change, and outcomes. An existing Cognitive Behavioral based Physical Therapy (CBPT) telerehabilitation intervention was selected for adaptation based on accessibility and strong congruency with the logic model. An Adaptation Advisory Panel planned and evaluated iterative adaptations of the CBPT intervention content, activities, delivery, materials, and design. The adapted Goal Oriented Activity for Latino persons with Spine pain (GOALS/Metas) intervention aimed to reduce pain intensity and disability through patient-centered goal setting in physical and cognitive treatment domains. Sequential case series supported feasibility and acceptability of the adapted intervention in the target population. PERSPECTIVE: We describe the systematic adaptation and reporting of an evidence-based physical therapy intervention for culturally and linguistically diverse populations. Greater rigor and transparency in adapting evidence-based interventions using tools such as IM-Adapt and FRAME in future studies will accelerate efforts to reduce ethnic and racial disparities in pain rehabilitation.

Psychologically Informed Physical Therapy Management of Chronic Musculoskeletal Pain in Culturally Diverse Populations: An Intervention Logic Model

Culturally and linguistically diverse (CALD) individuals are underrepresented in pain research, including studies of psychologically informed physical therapy (PIPT) for musculoskeletal pain. This perspective describes a conceptual framework for PIPT management of chronic musculoskeletal pain that identifies essential elements which can be culturally tailored to meet the needs of different CALD populations. Essential interventions, determinants of behavior change, and clinical outcomes were identified from studies of existing PIPT interventions for chronic pain. PIPT approaches shared the following essential interventions: (1) cognitive skill training, (2) general aerobic activity, (3) impairment-based therapeutic exercises, and (4) graded functional movement training. An intervention logic model was developed to conceptualize how these interventions might promote active coping behaviors and greater engagement in physical activity, therapeutic exercise, and functional mobility. The model included physical and cognitive-emotional processes that may contribute to behavioral changes which ultimately reduce pain-related disability. To illustrate cultural tailoring of model constructs, we describe how intervention delivery and assessments were customized for Latino persons with chronic spine pain at a health center located near the United States (US)-Mexico border. A literature review of sociocultural influences on the pain experience of Latino persons was conducted, and essential elements of the model were operationalized to ensure that therapeutic goals, language, content, and processes were compatible with Latino cultural beliefs, values, and behaviors. Future research using the proposed model to adapt and test PIPT interventions for other CALD populations may help identify shared and divergent mechanisms of treatment response for culturally tailored pain management programs. PERSPECTIVE: A novel conceptual framework may help inform cultural tailoring of psychologically informed physical therapy management approaches for chronic musculoskeletal pain by maintaining fidelity to essential treatment elements while also leveraging the unique sociocultural context of different culturally and linguistically diverse communities to improve health outcomes.

Health Care Discrimination Affects Patient Activation, Communication Self-Efficacy, and Pain for Black Americans

This study examines whether a key psychosocial factor-perceiving racial discrimination in health care-is associated with worse patient activation, communication self-efficacy, and physical health outcomes for Black veterans with chronic pain. Moreover, we explore the role of physician-patient working alliance as a moderator that may alleviate the potential consequences of perceiving racial discrimination. This work is a secondary analysis of baseline data from a clinical trial with 250 U.S. Black veterans with chronic musculoskeletal pain. Participants were recruited from primary care clinics at a Midwestern VA hospital between 2018 and 2021. Perceiving racial discrimination in health care was associated with lower patient activation, lower self-efficacy in communicating with one's physician, higher pain intensity, and lower pain management self-efficacy (ps < .049) but was unrelated to reports of pain interference or use of pain coping strategies (ps > .157). Although the relationship between perceived discrimination and patient activation was moderated by working alliance (P = .014), having a stronger working alliance improved patient activation to varying degrees across levels of perceived discrimination (rather than buffering against negative outcomes when perceiving higher levels of discrimination). Moderation was not significant on any other measures. This study deepens our understanding of the broad range of health outcomes that are (not) associated with perceiving racial discrimination in health care. Contrary to prior theorizing, this work also indicates that having a strong working alliance does not attenuate the consequences of perceiving discrimination among Black individuals living with pain. These results highlight the need for system-level interventions to address perceptions of racial mistreatment in health care. PERSPECTIVE: This work has important public health implications by identifying the broad range of outcomes associated with perceived discrimination in health care among Black Americans. Importantly, a strong physician-patient relationship did not buffer Black individuals from the consequences of perceiving discrimination. These findings inform intervention targets to mitigate racial health disparities.

Associations Between Psychological Stress and Hand Pain Among Rural and Urban Adults: Findings From the KoGES Community Cohort Study

Despite known health disparities in chronic pain conditions between rural and urban adults, few studies have examined whether longitudinal associations between psychological stress and hand pain differ. Utilizing community-based cohort data, this study examined whether rural and urban adults differed in the extent to which psychological distress was associated with hand osteoarthritis (OA) symptoms and later functional limitations related to hand pain. Community-dwelling adults (mean age = 51.97, 52.3% women) in a rural (n = 2,971) and urban area (n = 2,782) provided demographic data at baseline and, at a 4-year follow-up, responded to questionnaires about psychological distress and clinical symptoms of hand OA. Levels of functional limitations in hands were assessed at an 8-year follow-up. Ordinal logistic and linear regression were conducted to examine the effects of psychological distress on hand OA symptoms and functional limitations, and whether associations between psychological distress and these pain outcomes were moderated by residential area. The results showed that psychological distress was associated with a higher risk for hand OA symptoms and functional limitations, even after adjusting for demographic and health covariates. There was significant moderation by residential area, such that the association between psychological distress and hand OA was significant only among rural adults and the association with functional limitations was stronger in rural adults than urban adults. Findings suggest greater vulnerability to hand arthritis and hand-related functional limitations among rural adults and the potential for tailored intervention programs to help resolve health disparities among rural communities. PERSPECTIVE: This study compares the association between psychological distress and hand pain outcomes between rural and urban adults using community-based cohort data and suggests that rural adults are more vulnerable to experiencing negative effects of psychological distress on concurrent hand OA symptoms and longitudinal functional limitations in hands.

Pharmacological Prescribing and Satisfaction with Pain Treatment Among Non-Hispanic Black Men with Chronic Pain

Introduction

Pharmacological strategies are often central to chronic pain management; however, pain treatment among non-Hispanic Black men may differ because of their disease profiles and healthcare interactions. However, less is known about pain medication prescribing and patients' satisfaction with pain treatment and management among non-Hispanic Black men with self-reported chronic pain.

Purpose

This study assessed factors associated with non-Hispanic Black men being prescribed/recommended narcotics/opioids for chronic pain and their satisfaction with pain treatment/management.

Methods

Data were analyzed from 286 non-Hispanic Black men with chronic pain who completed an internet-delivered questionnaire. Participants were recruited nationwide using a Qualtrics web-based panel. Logistic regression was used to identify factors associated with being prescribed/recommended narcotics/opioids for pain management treatment. Then, ordinary least squares regression was used to identify factors associated with their satisfaction level with the pain treatment/management received.

Results

On average, participants were 56.2 years old and 48.3% were prescribed/recommended narcotics/opioids for chronic pain. Men with more chronic conditions (Odds Ratio [OR] = 0.57, P = 0.043) and depression/anxiety disorders (OR = 0.53, P = 0.029) were less likely to be prescribed/recommended narcotics/opioids. Men who were more educated (OR = 2.09, P = 0.044), reported more frequent chronic pain (OR = 1.28, P = 0.007), and were allowed to participate more in decisions about their pain treatment/management (OR = 1.11, P = 0.029) were more likely to be prescribed/recommended narcotics/opioids. On average, men with more frequent chronic pain (B = -0.25, P = 0.015) and pain problems (B = -0.16, P = 0.009) were less satisfied with their pain treatment/management. Men who were allowed to participate more in decisions about their pain treatment/management reported higher satisfaction with their pain treatment/management (B = 0.55, P < 0.001).

Conclusion

Playing an active role in pain management can improve non-Hispanic Black men's satisfaction with pain treatment/management. This study illustrates the importance of patient-centered approaches and inclusive patient-provider interactions to improve chronic pain management.

Differences in Pain Severity and Interference between Latinx Combustible Cigarette Smokers and Dual Users with Current Pain

Latinx individuals who smoke represent a tobacco health disparities group. Yet, limited research has focused on examining dual combustible and electronic cigarette use among Latinx populations. Importantly, Latinx persons who smoke also evince elevated rates of pain problems and symptoms and prior research has consistently linked pain problems and severity to smoking prevalence, maintenance, and behavior. Accordingly, the current study sought to build from the limited work that exists among dual combustible cigarette and electronic cigarette Latinx users comparing levels of pain severity and interference. The current sample consists of 196 adult Latinx daily cigarette smokers (35.48 years old; 39.4% female), of which 72 reported current daily dual use of an e-cigarette. Results indicated that Latinx dual users reported greater levels of pain severity (ηp2 = .12) and pain interference (ηp2 = .10) than exclusive combustible cigarette users. The study adds uniquely to the limited literature on the clinical importance of dual cigarette use in relation to pain severity and interference in that pain may serve as an important risk factor for the initiation and maintenance of dual use for increased analgesic nicotine effects.

Racial Disparities in Pain Among Women with Fibromyalgia: Secondary Data Analysis of Severity, Interference with Function, and Response to Guided Imagery

Background: Fibromyalgia syndrome (FMS) is characterized by widespread persistent musculoskeletal pain. Mostly prevalent among White women, little is known about FMS in other population cohorts. This study examined secondary data of a racially diverse sample of women with FMS that were collected as part of a randomized controlled clinical trial that examined the effect of a complementary therapy intervention over the course of a 10-week guided imagery intervention to identify demographic, social, or economic differences in self-reported pain. Materials and Methods: The Brief Pain Inventory (BPI), which measures pain severity and interference, was administered to 72 women (21 Black and 51 Whites) at baseline, 6 and 10 weeks. Student's t tests and time series regression models examined racial difference in pain dimensions and treatment response. Regression models accounted for age, race, income, duration of symptoms, treatment group, pain at baseline, smoking, alcohol use, comorbid conditions, and time. Results: Black women experienced significantly higher pain severity (β = 5.52, standard deviation [SD] = 2.13) and interference (β = 5.54, SD = 2.74) than Whites (severity β = 4.56, SD = 2.08; interference β = 4.72, SD = 2.76) (interference: t = 1.92, p = 0.05; severity: t = 2.95, p = 0.00). Disparities persisted over time. Controlling for differences in age, income, and previous pain levels, Black women had 0.26 (standard error [SE] = 0.065) higher pain severity and 0.36 (SE = 0.078) higher interference than Whites. Low-income earners also experienced 2.02 (SE = 0.38) and 2.19 (SE = 0.46) higher pain severity and interference, respectively, than other earners. Results were robust to inclusion of comorbidities. Conclusions: Black women and low-income earners experienced significantly higher levels of pain severity and interference and a lower dose response to the intervention. Differentials were robust to inclusion of demographic, health, and behavioral characteristics. Findings suggest that external factors may contribute to pain perception among women with FMS.

Race differences in pain and pain-related risk factors among former professional American-style football players

ABSTRACT

The burden of pain is unequal across demographic groups, with broad and persisting race differences in pain-related outcomes in the United States. Members of racial and ethnic minorities frequently report more pervasive and severe pain compared with those in the majority, with at least some disparity attributable to differences in socioeconomic status. Whether race disparities in pain-related health outcomes exist among former professional football players is unknown. We examined the association of race with pain outcomes among 3995 former professional American-style football players who self-identified as either Black or White. Black players reported more intense pain and higher levels of pain interference relative to White players, even after controlling for age, football history, comorbidities, and psychosocial factors. Race moderated associations between several biopsychosocial factors and pain; higher body mass index was associated with more pain among White but not among Black players. Fatigue and psychosocial factors were more strongly related to pain among Black players relative to White players. Collectively, the substantial social and economic advantages of working as a professional athlete did not seem to erase race-related disparities in pain. We highlight an increased burden of pain among elite Black professional football players and identify race-specific patterns of association between pain and biopsychosocial pain risk factors. These findings illuminate potential future targets of interventions that may serve to reduce persistent disparities in the experience and impact of pain.

Disparities in Pain Management

Health disparities in pain management remain a pervasive public health crisis. Racial and ethnic disparities have been identified in all aspects of pain management from acute, chronic, pediatric, obstetric, and advanced pain procedures. Disparities in pain management are not limited to race and ethnicity, and have been identified in multiple other vulnerable populations. This review targets health care disparities in the management of pain, focusing on steps health care providers and organizations can take to promote health care equity. A multifaceted plan of action with a focus on research, advocacy, policy changes, structural changes, and targeted interventions is recommended.

Psychosocial Predictors of Chronic Musculoskeletal Pain Outcomes and their Contextual Determinants Among Black Individuals: A Narrative Review

Black communities are disproportionally affected by Chronic Musculoskeletal Pain (CMP), but little is known about the psychological predictors of CMP outcomes and their contextual determinants among Black individuals. To address this gap, we conducted a narrative review of extant literature to (1) report the major conceptual models mentioned in prior work explaining the link between contextual determinants and psychological responses to pain among Black individuals with CMP; and (2) describe psychological factors related to CMP outcomes in this population that are highlighted in the literature. We searched 4 databases (APA PsycNet, PubMed/MEDLINE, Scopus, and Google Scholar) using the following search terms: musculoskeletal pain, chronic pain, mental health, psychological, coping, health disparities, contextual factors, conceptual models, psychosocial, Black, African American, pain, disability, and outcomes. We illustrate 3 relevant conceptual models - socioecological, cumulative stress, and biopsychosocial - related to contextual determinants and several psychological factors that influence CMP outcomes among Black individuals: (1) disproportionate burden of mental health and psychiatric diagnoses, (2) distinct coping strategies, (3) pain-related perceived injustice and perceived racial/ethnic discrimination, and (4) preferences and expectations related to seeking and receiving pain care. The detailed clinical and research implications could serve as a blueprint for the providers and clinical researchers to address health disparities and improve care for Black individuals with CMP. PERSPECTIVE: This narrative review illustrates conceptual models explaining the link between contextual determinants and psychological responses to pain among Black individuals with chronic musculoskeletal pain. We discuss 3 relevant conceptual models - socioecological, cumulative stress, biopsychosocial -, and 4 psychological factors: disproportionate burden of mental health, distinct coping strategies, perceived injustice/discrimination, preferences/expectations.

Loneliness Exacerbates the Association Between Bodily Pain and Depressive Symptoms Among Middle-Aged and Older Latinx Adults

Objectives: To investigate the associations between three bodily pain dimensions (intensity, frequency, severity) and depressive symptoms among middle-aged and older Latinxs ages 40-94 and to determine whether loneliness conditioned the pain-depressive symptoms associations. Methods: Data are from a community-based study of community-dwelling residents in Florida (N = 527). Multivariable linear regression models assessed the impact of each pain dimension on depressive symptoms, controlling for sociodemographic factors. Interactions determined whether loneliness moderated the pain-depressive symptoms relationships. Results: Each pain dimension was positively associated with depressive symptoms (p < .01). Loneliness modified the impact of pain frequency and pain severity on depressive symptoms. Those with moderate and high loneliness levels experienced an amplified pain-depressive symptoms association. Discussion: Findings underscore the synergistic effects of pain and loneliness in exacerbating depressive symptomatology among middle-aged and older Latinx adults. Loneliness is an important point of intervention to improve mental health among aging Latinxs.

Functional Gastrointestinal Disorders in Neonates and Toddlers According to the Rome IV Criteria: A Systematic Review and Meta-Analysis

Functional gastrointestinal disorders (FGIDs) are classified as a combination of persistent gastrointestinal symptoms. The Rome IV criteria can elucidate several factors in the pathogenesis of FGIDs. The frequency of FGIDs can differ between clinical and nonclinical settings and between geographic regions. To determine the global prevalence of FGIDs in neonates and toddlers according to the Rome IV criteria. We included cohort and descriptive observational studies reporting the prevalence of FGIDs according to the Rome IV criteria in children aged 0-48 months. We searched the Medline, Embase, Lilacs, and CENTRAL databases from May 2016 to the present day. Furthermore, unpublished literature was searched to supplement this information. The Strengthening the Reporting of Observational Studies in Epidemiology statement was used to evaluate the risk of bias. A meta-analysis of the proportions was performed using MetaProp in R. The results are reported in forest plots. We identified and analyzed 15 studies comprising 48,325 participants. Six studies were conducted in Europe, three in Latin America, two in North America, and four in Asia. Most participants were 12-48 months old (61.0%) and were recruited from the community. The global prevalence of FGIDs was 22.0% (95% confidence interval, 15-31%). The most common disorder was functional constipation (9.0%), followed by infant regurgitation syndrome (8.0%). Its prevalence was higher in the Americas (28.0%). FGIDs, as defined by the Rome IV criteria, are present in 22% of children, and the most common primary disorder is functional constipation. A higher prevalence of FGIDs has been reported in America.

Comparison of pain and psychosocial correlates among Hispanic and Non-Hispanic White youth with chronic pain

Introduction:

Despite well-documented pain disparities among adults from non-White and Hispanic groups, less is known about pain disparities in non-White and Hispanic pediatric populations.

Objectives:

We compare pain and related psychosocial factors at the individual (pain intensity, pain interference, pain catastrophizing, co-occurring symptoms), social (peer relations), and systemic (health insurance) levels among Hispanic and Non-Hispanic White (NHW) youth with chronic pain.

Methods:

Eight hundred thirty-seven (71.4% female) Hispanic (n = 268, 32%) and NHW (n = 569, 68%) youth ages 8 to 17 years (M = 14.00; SD = 2.54) completed a survey at their initial visit to a pain clinic. Independent sample t tests investigated mean differences in psychosocial factors at the individual and social levels. Chi-squared tests investigated differences at the systemic level. Bivariate correlations for each group were compared using Fisher r-to-z transformations.

Results:.

Hispanic youth reported higher levels of pain intensity (t[811] = −2.75, P = 0.006). Groups did not differ in reports of other individual or social factors. Non-Hispanic White youth were more likely to have private insurance (OR, 5.66). All examined variables were significantly correlated among NHW youth. Correlations were weaker or nonsignificant among Hispanic youth. Fisher r-to-z transformations revealed these group differences to be significant.

Conclusion:

Hispanic youth report higher pain levels than NHW counterparts and lower likelihood of having private insurance. Pain and psychosocial factors correlate differently among the 2 groups highlighting a need to better understand the chronic pain experiences of diverse youth because models derived primarily from NHW populations may not generalize across ethnic and racial groups.

Exploring pain experience and anxiety sensitivity among Latinx adults in a federally qualified health center

The Latinx population is the largest minority group in the United States (U.S.) and is expected to continue to grow through at least 2050. Although there is growing recognition of the importance of pain among Latinx individuals, few studies have examined individualized psychological processes governing pain severity and disability in Latinx populations. One psychological factor that has shown promise in relation to pain experience specifically and clinical conditions more generally is anxiety sensitivity. The present investigation sought to (1) characterize the severity of pain among an unselected sample of adult Latinx individuals attending a Federally Qualified Health Center (FQHC); (2) evaluate the severity of anxiety sensitivity as a function of pain severity; and (3) test the potential explanatory relevance of anxiety sensitivity as an individual difference factor for pain intensity, pain disability, psychological inflexibility for emotional distress, and global life impairment. Participants included 406 adult Spanish-speaking Latinx persons (87.2% female; M_age = 40.26 years, SD = 11.20, and 98.3% used Spanish as their first language) who attended an FQHC in Houston, Texas. Analyses revealed that 62.6% of the sample had at least some pain, and 21.9% of the same had high intensity, moderate interference, or severe interference chronic pain. Further, results provided evidence for anxiety sensitivity as a function of pain grade, such that individuals with grade 2 (high-intensity pain), grade 3 (moderate pain interference), and grade 4 (severe pain interference) chronic pain reported significantly higher levels of anxiety sensitivity than those with grade 0 pain (no chronic pain). Additionally, after controlling for age, gender, marital status, years of education, years living in the U.S., and generalized anxiety, anxiety sensitivity significantly accounted for significant variance in pain intensity, inflexibility in relation to emotional distress, and life impairment. Overall, the current study builds upon what is currently understood about anxiety sensitivity among the Latinx population and uniquely extends past work by linking individual differences in this construct to clinically relevant aspects of pain experience and life impairment among adults attending FQHC's. Additional clinical attention should be focused on anxiety sensitivity to offset pain disparities among this established health disparities group.

Does Religiosity/Spirituality Play a Role in Function, Pain-Related Beliefs, and Coping in Patients with Chronic Pain? A Systematic Review

This systematic review examined the extent to which measures of religiosity/spirituality (R/S): (1) are associated with pain, function, pain-related beliefs (beliefs), coping responses, and catastrophizing in people with chronic pain; and (2) moderate the association between beliefs, coping and catastrophizing, and pain and function. Experimental and observational studies examining at least one of these research questions in adults with chronic pain were eligible. Two reviewers independently performed eligibility screening, data extraction, and quality assessment. Twenty studies were included. Most studies focused on the association between R/S and pain or function. When significant associations emerged, those between R/S and psychological function were weak to strong and positive; those between religious/spiritual well-being and pain and physical dysfunction were negative, but weak. Few studies examined the associations between R/S and beliefs/coping/catastrophizing; none examined the moderation role of R/S. The findings suggest that R/S is associated with pain and psychological function in people with chronic pain, and that viewing oneself as being "spiritual," regardless of religion, may contribute to positive psychological adjustment. More research is needed to determine the reliability of this finding. PROSPERO registry CRD42018088803.

Pain management practices for outpatients with breast cancer

Objectives

Methods

Results

Conclusions

•

One in four women office visits for breast cancer received pain medication prescriptions.

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Among the patients receiving pain medications, one in seven women received opioids.

•

Both patient and provider characteristics contribute to variations in pain management in breast cancer patients.

The impact of pain neuroscience education in a Hispanic-American population: A mixed-methods exploratory study

BACKGROUND

Chronic pain and pain catastrophization are growing problems across the United States, within the Hispanic-American population. Pain neuroscience education (PNE) changes pain knowledge and beliefs in many populations, but its impact on reconceptualization in people of Hispanic-American origin is unknown.

PURPOSE

Explore the changes in pain knowledge in Hispanic-American individuals and the process involved in reconceptualization following a PNE lecture.

METHODS

Eight Hispanic-American adults participated in a mixed-methods exploratory study. The Revised Neurophysiology of Pain Questionnaire (R-NPQ) was completed before, immediately after, and eight months after an adapted PNE lecture. A focus group involving four participants discussed the impact of PNE. Transcripts were translated and theme coded, and a concept map was developed by consensus.

RESULTS

R-NPQ scores improved from 25.3% to 43.5% post-lecture, and the number of unsure responses decreased from 41.5% to 18.4%. At eight months, R-NPQ scores remained stable (44.2%) but unsure responses increased (28.9%). Themes that contributed to the process of change included cognitive dissonance, relevance of instruction, idea exchange through peer interaction, reflection, confidence, changed behaviors, and educational utility.

CONCLUSION

While small improvements in knowledge and perception of pain appeared to occur with the PNE, knowledge remained low. Consideration of adult learning principles such as applicability, peer-interaction, the confrontation of beliefs, and reflection throughout PNE may enhance its impact. Future investigation should explore the efficacy of this intervention, when compared or combined with other techniques in the treatment of Hispanic-Americans experiencing persistent pain.

Language Use and Generation Status are Associated with Chronic Pain Differences in Mexican Americans

Little is known about the pain experience of the Mexican American (MA) population. We investigated the associations between language use and generation status with chronic pain prevalence, health insurance coverage, and analgesic medication use. We examined 3373 MA respondents from the National Health and Nutrition Examination Survey. We found higher levels of English use and generation status were associated with higher odds of reporting chronic pain. For respondents reporting chronic pain, higher levels of English use and generation status were associated with higher odds of being covered by health insurance, lower odds of having a period of time last year without health insurance, and higher odds of being prescribed any analgesic medication, especially opioid medications. We found language use and generation status play a role in MAs' experience, access, and treatment of chronic pain. Patient-, provider-, and systems-level interventions may be needed to reduce these disparities.

Opioid Use Disorder and Racial/Ethnic Health Disparities: Prevention and Management

PURPOSE OF REVIEW

This review aims to summarize risks and disparities associated with the prevalence and treatment of opioid use disorder in the perioperative and long-term setting, as well as evidence-based treatment and prevention targeted toward specific vulnerable populations.

RECENT FINDING

There are significant demographic disparities in pain management and development and management of OUD in the chronic and surgical setting. While White patients traditionally receive more pain management, they are also at higher risk of developing OUD. Hispanic and Latin populations have the largest proportion of youth with OUD and often lack culturally appropriate translation services that allow for effective treatment. Native Americans have the second highest rate of OUD and often receive care in communities and healthcare settings that lack funding and resources to combat OUD. African Americans tend to suffer from the criminalization of OUD and are less able to seek treatment due to this, and furthermore, often lack community services that would benefit them. Additional vulnerable populations include homeless individuals that lack access to healthcare or health insurance. In addition, incarcerated individuals often lack access to naloxone and suffer from high rates of fatal overdose soon after being released to the community. People in rural settings lack needle-exchange programs and community-based interventions/support groups. Patients in the perioperative setting lack standard screening and pain management protocols. Interventions targeted toward each appropriate group can help decrease the rate of OUD and improve its treatment, and overarching interventions such as protocols, targeted funding, education and regulation can combat OUD for all populations.

Only two subscales of the Coping Strategies Questionnaire are culturally relevant for people with chronic low back pain in Nigerian Igbo populations: a cross-cultural adaptation and validation study

BACKGROUND

Pain coping strategies are important in the chronicity of low back pain and the associated disability. However, their exact influence is unknown in many African contexts such as rural Nigeria due to lack of outcome instruments with which to measure them. This study aimed to cross-culturally adapt and psychometrically test the Coping Strategies Questionnaire (CSQ) in Igbo populations in Nigeria.

METHODS

The CSQ was forward and back translated by clinical and non-clinical translators; evaluated by an expert review committee. The translated measure was piloted amongst twelve rural Nigerian dwellers with chronic low back pain (CLBP) using the think-aloud cognitive interviewing style. Internal consistency (Cronbach's alpha), test-retest reliability (intra-class correlation coefficient-ICC and Bland-Altman plot), and minimal detectable change were examined amongst 50 people with CLBP in rural and urban Nigerian populations. Construct validity was determined by assessing the correlations between the adapted CSQ and measures of disability, pain intensity, fear avoidance beliefs, and illness perceptions using Spearman's correlation analyses with 200 adults with CLBP in rural Nigeria. Exploratory factor analyses using Kaiser criterion (eigenvalue) and parallel analysis as methods for determining dimensionality were conducted with the same sample.

RESULTS

Fourteen out of 42 items were routinely adopted in this population including all items of catastrophising subscale, and all but one item of praying and hoping subscale. Catastrophising and praying and hoping subscales had the highest Cronbach's alpha. All subscales had high ICCs with Bland-Altman plots that showed good agreement. All coping strategies were positively correlated with self-reported disability and pain intensity with catastrophising subscale having the highest values. Seven-factor and three-factor structures were produced with the Kaiser criterion and parallel analysis, with different items from the original CSQ, except for catastrophising.

CONCLUSIONS

Catastrophising and praying and hoping may be the relevant coping strategies in this population. More culturally relevant measures of pain coping strategies that include adaptive coping strategies may need to be developed for African contexts such as rural Nigeria.

Patient and Provider Attitudes, Beliefs, and Biases That Contribute to a Marginalized Process of Care and Outcomes in Chronic Musculoskeletal Pain. A Systematic Review. Part I: Clinical Care

OBJECTIVE

Chronic musculoskeletal pain (CMP) outcomes are affected by numerous variables including the clinical conversation. When good therapeutic/working alliances are formed, congruent clinical conversations can lead to improved CMP outcomes. Identifying patient/provider attitudes, beliefs, and biases in CMP that can influence the clinical conversation, and thus clinical management decisions, is foundationally important.

DESIGN

The aims of this systematic review were to 1) summarize the evidence of the attitudes and beliefs of patients and healthcare providers (HCPs) involved in the clinical conversation of CMP; 2) examine if/how these perceptions impacted the process of care.

METHODS

A systematic search of CINAHL, PubMed, Scopus, Sociology Database in ProQuest, and Web of Science used PRISMA guidelines. Included studies: vulnerable adult populations with chronic pain. Study bias was examined using the Downs and Black tool.

RESULTS

Seven retrospective studies were included. HCPs demonstrated negative implicit biases toward minorities and women when making pharmaceutical management decisions. HCPs demonstrated negative implicit biases toward lower educated women when making referrals to multidisciplinary care. Unmet patient expectations resulted in higher drop-out rates at multidisciplinary pain management programs. Patients' trust was influenced by healthcare setting and patients often had limited options secondary to health insurance type/status.

CONCLUSION

These findings suggest that patients with CMP may experience a marginalized process of care due to HCPs' negative implicit biases, unmet patient expectations, and healthcare setting. Results suggest several factors may contribute to inequitable care and the recalcitrant nature of CMP, particularly in vulnerable populations with limited healthcare choices.

Applying the NIA Health Disparities Research Framework to Identify Needs and Opportunities in Chronic Musculoskeletal Pain Research

Disparities in the experience of chronic musculoskeletal pain in the United States stem from a confluence of a broad array of factors. Organized within the National Institute on Aging Health Disparity Research Framework, a literature review was completed to evaluate what is known and what is needed to move chronic musculoskeletal pain research forward specific to disproportionately affected populations. Peer-reviewed studies published in English, on human adults, from 2000 to 2019, and conducted in the United States were extracted from PubMed and Web of Science. Articles were reviewed for key words that focused on underrepresented ethnic/race groups with chronic musculoskeletal pain applying health factor terms identified in the NIAHealth Disparity Research Framework four levels of analysis: 1) environmental, 2) sociocultural, 3) behavioral, and 4) biological. A total of 52 articles met inclusion criteria. There were limited publications specific to underrepresented ethnic/race groups with chronic musculoskeletal pain across all levels with particular research gaps under sociocultural and biological categories. Current limitations in evidence may be supplemented by a foundation of findings specific to the broader topic of "chronic pain" which provides guidance for future investigations. Study designs including a focus on protective factors and multiple levels of analyses would be particularly meritorious. PERSPECTIVE: Chronic musculoskeletal pain unequally burdens underrepresented ethnic/race groups. In order to move research forward and to systematically investigate the complex array of factors contributing toward health disparities, an organized approach is necessary. Applying the NIA Health Disparities Research Framework, an overview of the current state of evidence specific to chronic musculoskeletal pain and underrepresented ethnic/race groups is provided with future directions identified.

Acupuncture as a Nonpharmacologic Treatment for Pain in a Pediatric Emergency Department

OBJECTIVES

With epidemic opioid deaths and abuse in the United States, government agencies recommend nonpharmacological treatments for pain. However nonopioid treatment options for moderate to severe pain in the pediatric emergency department (PED) are limited. Acupuncture has been shown to be effective for pain. The objective of this study was to evaluate the feasibility of using traditional acupuncture (TA) and battlefield acupuncture (BFA) in the treatment of pain in the PED.

METHODS

A pediatric cohort treated with acupuncture for pain in an urban PED was assessed. All subjects received TA or BFA as treatment, and pre/postacupuncture pain scores, feedback, and adverse events were assessed. The primary outcome was a change in pain score.

RESULTS

Twelve patients received BFA, and 13 received TA for these pain conditions: headaches, sciatica, paraphimosis, torticollis, joint pains (knee, shoulder, jaw), sprains (foot, wrist, thumb), dysmenorrhea, otitis externa, sickle cell, and muscle knot. The mean ± SD pain score change, 5.8 ± 2.5 (P < 0.05; 95% confidence interval, 4.9-7.0), was clinically and statistically significant. Over 90% of subjects reported significant improvement or resolution of pain; 96% were satisfied with pain relief and would receive acupuncture again. Two adverse events were noted: one patient reported dizziness, and another, a tinge of blood at 1 of 90 needled points.

CONCLUSIONS

This study suggests that acupuncture is a potential nonpharmacologic therapeutic option for acute pain management in the PED.

Disparities in outcomes after spine surgery: a Michigan Spine Surgery Improvement Collaborative study

OBJECTIVE

Most studies on racial disparities in spine surgery lack data granularity to control for both comorbidities and self-assessment metrics. Analyses from large, multicenter surgical registries can provide an enhanced platform for understanding different factors that influence outcome. In this study, the authors aimed to determine the effects of race on outcomes after lumbar surgery, using patient-reported outcomes (PROs) in 3 areas: the North American Spine Society patient satisfaction index, the minimal clinically important difference (MCID) on the Oswestry Disability Index (ODI) for low-back pain, and return to work.

METHODS

The Michigan Spine Surgery Improvement Collaborative was queried for all elective lumbar operations. Patient race/ethnicity was categorized as Caucasian, African American, and "other." Measures of association between race and PROs were calculated with generalized estimating equations (GEEs) to report adjusted risk ratios.

RESULTS

The African American cohort consisted of a greater proportion of women with the highest comorbidity burden. Among the 7980 and 4222 patients followed up at 1 and 2 years postoperatively, respectively, African American patients experienced the lowest rates of satisfaction, MCID on ODI, and return to work. Following a GEE, African American race decreased the probability of satisfaction at both 1 and 2 years postoperatively. Race did not affect return to work or achieving MCID on the ODI. The variable of greatest association with all 3 PROs at both follow-up times was postoperative depression.

CONCLUSIONS

While a complex myriad of socioeconomic factors interplay between race and surgical success, the authors identified modifiable risk factors, specifically depression, that may improve PROs among African American patients after elective lumbar spine surgery.

An exploration of experiences and beliefs about low back pain with Arab Muslim patients

PURPOSE

Pain has psychological, social, physical and spiritual dimensions and therefore this experience is influenced by culture. The aim of this study was to explore the experiences and beliefs of Arab Muslim patients with low back pain (LBP) in Bahrain.

METHODS

We recruited Arab Muslim patients attending physiotherapy with LBP ≥3 months, and ≥18 years of age. Socio-demographic information and a Visual Analogue Scale (VAS) score for pain intensity were collected. Focus groups were conducted between 2013-2014, using pre-determined semi-structured interview questions. Qualitative content analysis was applied with single counting and inclusion of negative instances.

RESULTS

18 participants attended three focus groups (14 females and 4 males) with a mean VAS(SD) = 5.28(±1.97). Five themes were identified; (1) loss of independence, (2)change in identity causes distress, (3) beliefs and attitudes towards low back pain, (4)trying to cope with LBP, and (5)experiences within the healthcare system.

CONCLUSIONS

Religious and cultural beliefs influenced pain-related beliefs, fear-avoidance beliefs and catastrophizing. We recommend addressing cultural gender roles and using "active" forms of religious coping to inform treatment. Participants' experiences within and experiences of the healthcare system were similar to Western cultures. This encourages the application of Western findings into practice to facilitate the management of these patients.IMPLICATIONS FOR REHABILITATIONA qualitative exploration was undertaken to explore the experiences of Muslim and/or Arab patients with LBP.Our findings show that females have prioritised family needs over their own, primarily due to perceived gender roles.Contrary to previous findings labelling religious coping as a passive strategy, our findings suggest that religious coping strategies can be both positive and active strategies; such as participation in religious occasions and frequenting mosques.We support recommendations from Western literature to manage LBP; such as prioritising patient education and joint decision-making.

Racial and Ethnic Disparities in the Treatment of Chronic Pain

OBJECTIVE

To summarize the current literature on disparities in the treatment of chronic pain.

METHODS

We focused on studies conducted in the United States and published from 2000 and onward. Studies of cross-sectional, longitudinal, and interventional designs were included.

RESULTS

A review of the current literature revealed that an adverse association between non-White race and treatment of chronic pain is well supported. Studies have also shown that racial differences exist in the long-term monitoring for opioid misuse among patients suffering from chronic pain. In addition, a patient's sociodemographic profile appears to influence the relationship between chronic pain and quality of life. Results from interventional studies were mixed.

CONCLUSIONS

Disparities exist within the treatment of chronic pain. Currently, it is unclear how to best combat these disparities. Further work is needed to understand why disparities exist and to identify points in patients' treatment when they are most vulnerable to unequal care. Such work will help guide the development and implementation of effective interventions.

Keeping hope alive: Racial-ethnic disparities in distress tolerance are mitigated by religious/spiritual hope among Black Americans

Racial and ethnic minorities, including Blacks/African-Americans and Hispanics/Latinos,indicate lower tolerance to psychological distress (DT) and secular hope yet endorse more religious and spiritual hope than their non-Hispanic White (NHW) counterparts. Whether racial-ethnic minorities derive greater benefit from non-secular hope on the tolerance of psychological distress remains unclear. Self-reported endorsement of religious/spiritual (R/S) hope, secular hope, DT, and a number of other psychosocial, R/S and sociodemographic variables were analyzed from a nationwide survey of persons aged over 18 years (N = 2875) identifying as Black (14.2%), Hispanic (15.4%), or NHW (67.3%) using multiple regression. Overall, higher levels of both R/S and secular hope predicted greater DT. In turn, greater DT was associated with lower psychosomatic distress. Compared to NHW, the ethnic-minority groups reported lower overall levels of DT. An interaction for race-ethnicity further revealed that compared to distress intolerant NHW, Blacks/African-Americans at lower levels of DT report higher R/S and secular hope. Hispanics/Latinos were also higher on R/S and secular hope, but endorsed lower hope at higher levels of DT than the reference group. Although hope is considered a more passive form of coping, it is more frequently endorsed in marginalized ethnic-minority groups. However, compared to NHW, differences do exist in the extent to which R/S hope mitigates DT in Blacks/African-Americans compared to Hispanics/Latinos.

Chronic Pain and Mood Disorders in Asian Americans

Purpose: Pain and mood disorder frequently coexist. Yet, for Asian Americans (AAs), scant information about pain and mood disorder is available. Our aims were to compare (1) the rates of pain and mood disorders and (2) the magnitude of associations between pain and mood disorders between AAs and European Americans (EAs), and across different Asian subgroups. Methods: An analytical data was constructed from the Collaborative Psychiatric Epidemiology Studies (CPES), a representative sample of community-residing U.S. adults (n = 9,871). Pain morbidity was assessed by self-report. Mood disorders, including major depression and anxiety disorders, were assessed using the diagnostic interview. Analysis included descriptive statistics and multivariate logistic regression modeling. All analyses were weighted to approximate the U.S. populations, and controlled for sociodemographic and immigration characteristics. Results: Greater proportion of EAs, compared to AAs, endorsed lifetime pain (56.8% vs. 35.8%). Having life pain disorders elevated the likelihood of lifetime mood disorder by more than 2-folds (weight adjusted odds ratio (WAOR): 2.12, 95% CI: 1.77, 2.55). Having pain disorders over the past 12 months elevated the likelihood of mood disorder in the same time period by more than 3-folds (WAOR: 3.29, 95% CI: 2.02, 5.37) among AAs. The magnitude of the association between pain and psychiatric morbidity were greater in Vietnamese Americans compared to other AAs and EAs. Discussion: The conventional belief that rates of pain and mood disorders are greater in AAs than EAs may need to be further examined. Vietnamese Americans may be particularly vulnerable for experience of comorbid pain and mood disorders.

Race Differences in Resilience Among Older Adults with Chronic Low Back Pain

Introduction

Racial minorities are disproportionally affected by pain. Compared to non-Hispanic Whites (NHWs), non-Hispanic Blacks (NHBs) report higher pain intensity, greater pain-related disability, and higher levels of mood disturbance. While risk factors contribute to these disparities, little is known regarding how sources of resilience influence these differences, despite the growing body of research supporting the protective role of resilience in pain and disability among older adults with chronic pain. The current study examined the association between psychological resilience and pain, and the moderating role of race across these relationships in older adults with chronic low back pain (cLBP).

Methods

This is a secondary analysis of the Adaptability and Resilience in Aging Adults (ARIAA). Participants completed measures of resilience (ie, gratitude, trait resilience, emotional support), as well as a performance-based measure assessing lower-extremity function and movement-evoked pain.

Results

There were 45 participants that identified as non-Hispanic White (NHW) and 15 participants that identified as non-Hispanic Black (NHB). Race was a significant correlate of pain outcomes with NHBs reporting greater movement-evoked pain (r = 0.27) than NHWs. After controlling for relevant sociodemographic characteristics, measures of movement-evoked pain were similar across both racial groups, F (1, 48) = 0.31, p = 0.57. Moderation analyses revealed that higher levels of gratitude (b = −1.23, p = 0.02) and trait resilience (b = −10.99, p = 0.02) were protective against movement-evoked pain in NHWs. In contrast, higher levels of gratitude were associated with lower functional performance in NHBs (b = −0.13, p =0.02).

Discussion

These findings highlight racial differences in the relationship between resilience and pain-related outcomes among older adults with cLBP. Future studies should examine the potential benefits of targeted interventions that improve resilience and ameliorate pain disparities among racial minorities.

Parent responses to pediatric pain: The differential effects of ethnicity on opioid consumption

OBJECTIVE

Within the context of the United States opioid epidemic, some parents often fear the use of opioids to help manage their children's postoperative pain. As a possible consequence, parents often do not dispense optimal analgesic medications to their children after surgery, putting their children at risk of suffering from postsurgical pain. The objective of this research was to assess ethnicity as a predictor of both pain and opioid consumption, and to examine how Hispanic/Latinx and Non-Hispanic White parents alter their child's opioid consumption in response to significant postsurgical pain.

METHODS

Participants were 254 children undergoing outpatient tonsillectomy and/or adenoidectomy surgery and their parents. Longitudinal multilevel modeling examined changes in both parent-reported pain and hydrocodone/APAP consumption (mg/kg) on days 1 to 7 after surgery.

RESULTS

Parent reports of postoperative pain were higher in Hispanic/Latinx patients compared to their Non-Hispanic White counterparts (β = -0.15; 95% CI: -0.28, -0.01). There was also a significant interaction of ethnicity and pain on opioid consumption (β = 0.07; 95% CI: 0.01, 0.13). The relationship between parent perceived pain and opioid use was stronger for Non-Hispanic White children, suggesting that this group was more likely to consume opioids to help manage clinically significant postsurgical pain.

CONCLUSIONS

Hispanic/Latinx children might be at risk for undertreatment of surgical pain. Findings highlight the importance of assessing parent background and cultural beliefs as predictors of at home pain management and the potential effectiveness of tailored interventions that educate parents about monitoring and treating child postoperative pain.

Organic Cation Transporters in Health and Disease

The organic cation transporters (OCTs) OCT1, OCT2, OCT3, novel OCT (OCTN)1, OCTN2, multidrug and toxin exclusion (MATE)1, and MATE kidney-specific 2 are polyspecific transporters exhibiting broadly overlapping substrate selectivities. They transport organic cations, zwitterions, and some uncharged compounds and operate as facilitated diffusion systems and/or antiporters. OCTs are critically involved in intestinal absorption, hepatic uptake, and renal excretion of hydrophilic drugs. They modulate the distribution of endogenous compounds such as thiamine, L-carnitine, and neurotransmitters. Sites of expression and functions of OCTs have important impact on energy metabolism, pharmacokinetics, and toxicity of drugs, and on drug-drug interactions. In this work, an overview about the human OCTs is presented. Functional properties of human OCTs, including identified substrates and inhibitors of the individual transporters, are described. Sites of expression are compiled, and data on regulation of OCTs are presented. In addition, genetic variations of OCTs are listed, and data on their impact on transport, drug treatment, and diseases are reported. Moreover, recent data are summarized that indicate complex drug-drug interaction at OCTs, such as allosteric high-affinity inhibition of transport and substrate dependence of inhibitor efficacies. A hypothesis about the molecular mechanism of polyspecific substrate recognition by OCTs is presented that is based on functional studies and mutagenesis experiments in OCT1 and OCT2. This hypothesis provides a framework to imagine how observed complex drug-drug interactions at OCTs arise. Finally, preclinical in vitro tests that are performed by pharmaceutical companies to identify interaction of novel drugs with OCTs are discussed. Optimized experimental procedures are proposed that allow a gapless detection of inhibitory and transported drugs.

Acceptability of telephone-based pain coping skills training among African Americans with osteoarthritis enrolled in a randomized controlled trial: a mixed methods analysis

BACKGROUND

Osteoarthritis (OA) disproportionately impacts African Americans compared to Caucasians, including greater pain severity. The Pain Coping Skills Training for African Americans with Osteoarthritis (STAART) study examined a culturally enhanced Pain Coping Skills Training (CST) program among African Americans with OA. This mixed methods study evaluated the acceptability of the Pain CST program among STAART participants.

METHODS

STAART was a randomized controlled trial evaluating the effectiveness of an 11-session, telephone-based pain CST program, compared to a usual care control group. Participants were from the University of North Carolina and Durham Veterans Affairs Healthcare Systems. The present analyses included 93 participants in the CST group who completed a questionnaire about experiences with the program. Descriptive statistics of the questionnaire responses were calculated using SAS software. Thematic analysis was applied to open-response data using Dedoose software.

RESULTS

Participants' mean rating of overall helpfulness of the pain CST program for managing arthritis symptoms was 8.0 (SD = 2.2) on a scale of 0-10. A majority of participants reported the program made a positive difference in their experience with arthritis (83.1%). Mean ratings of helpfulness of the specific skills ranged from 7.7 to 8.8 (all scales 0-10). Qualitative analysis of the open-response data identified four prominent themes: Improved Pain Coping, Mood and Emotional Benefits, Improved Physical Functioning, and experiences related to Intervention Delivery.

CONCLUSIONS

The high ratings of helpfulness demonstrate acceptability of this culturally enhanced pain CST program by African Americans with OA. Increasing access to cognitive-behavioral therapy-based programs may be a promising strategy to address racial disparities in OA-related pain and associated outcomes.

TRIAL REGISTRATION

NCT02560922 , registered September 25, 2015.

Placebo hypoalgesia: racial differences

No large-cohort studies that examine potential racial effects on placebo hypoalgesic effects exist. To fill this void, we studied placebo effects in healthy and chronic pain participants self-identified as either African American/black (AA/black) or white. We enrolled 372 study participants, 186 with a diagnosis of temporomandibular disorder (TMD) and 186 race-, sex-, and age-matched healthy participants to participate in a placebo experiment. Using a well-established paradigm of classical conditioning with verbal suggestions, each individual pain sensitivity was measured to calibrate the temperatures for high- and low-pain stimuli in the conditioning protocol. These 2 temperatures were then paired with a red and green screen, respectively, and participants were told that the analgesic intervention would activate during the green screens to reduce pain. Participants then rated the painfulness of each stimulus on a visual analog scale ranging from 0 to 100. Racial influences were tested on conditioning strength, reinforced expectations, and placebo hypoalgesia. We found that white participants reported greater conditioning effects, reinforced relief expectations, and placebo effects when compared with their AA/black counterparts. Racial effects on placebo were observed in TMD, although negligible, short-lasting, and mediated by conditioning strength. Secondary analyses on the effect of experimenter-participant race and sex concordance indicated that same experimenter-participant race induced greater placebo hypoalgesia in TMDs while different sex induced greater placebo hypoalgesia in healthy participants. This is the first and largest study to analyze racial effects on placebo hypoalgesia and has implications for both clinical research and treatment outcomes.

Psychotherapy in pain management: New viewpoints and treatment targets based on a brain theory

The current paper provides an explanation of neurophysiological pain processing based the Dimensional Systems Model (DSM), a theory of higher cortical functions in which the cortical column is considered the binary digit for all cortical functions. Within the discussion, novel views on the roles of the basal ganglia, cerebellum, and cingulate cortex are presented. Additionally, an applied Clinical Biopsychological Model (CBM) based on the DSM will be discussed as related to psychological treatment with chronic pain patients. Three specific areas that have not been adequately addressed in the psychological treatment of chronic pain patients will be discussed based on the CBM. The treatment approaches have been effectively used in a clinical setting. Conclusions focus on a call for researchers and clinicians to fully evaluate the value of both the DSM and CBM.

Pain intensity, pain-related anxiety, and somatic and mental health symptoms: a test among latinx young adults

Latinx individuals demonstrate significant pain-related health disparities compared to other racial/ethnic groups. Moreover, young adulthood (18-25 years of age) is a primary developmental window wherein pain-related health problems are first encountered and may be related to more severe somatic and mental health symptoms. Pain-related anxiety may be one mechanistic construct linking individual differences in the experience of pain intensity to poorer somatic experiences and mental health among Latinx young adults. Thus, the current study examined pain-related anxiety as an explanatory factor underlying the relationship between pain intensity and body vigilance, perceptions of health, worry, anxious arousal, and depressive symptoms among Latinx young adults. Participants included 401 Latinx young adults (M_age = 21 years; SD = 2.02; age range: 18-25 years; 83% female) at a large, southwestern university. Results revealed that individual differences in pain intensity had a significant indirect effect on the studied somatic and negative affect variables through pain-related anxiety. These novel findings suggest future work should continue to explore pain-related anxiety in the association between the experience of pain and somatic and mental health among Latinx young adults.

Pain coping skills training for African Americans with osteoarthritis: results of a randomized controlled trial

African Americans bear a disproportionate burden of osteoarthritis (OA), but they have been underrepresented in trials of behavioral interventions for pain. This trial examined a culturally tailored pain coping skills training (CST) program, compared to a wait list control group, among 248 African Americans with knee or hip OA. The pain CST program involved 11 telephone-based sessions over 3 months. Outcomes were assessed at baseline, 3 months (primary), and 9 months, and included the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain subscale (primary outcome), WOMAC total score and function subscale, PROMIS Pain Interference, Short-Form 12 Mental and Physical Composite Subscales, Coping Strategies Questionnaire-Total Coping Attempts, Pain Catastrophizing Scale, Patient Health Questionnaire-8, Arthritis Self-Efficacy Scale, and Patient Global Impression of Arthritis Symptom Change. Linear mixed models were fit for all outcomes. There were no significant between-group differences in WOMAC pain score at 3 months (-0.63 [95% confidence interval -1.45, 0.18]; P = 0.128) or 9 months (-0.84 [95% confidence interval -1.73, 0.06]; P = 0.068). Among secondary outcomes, at 3 months, there were significant differences, in favor of the CST group, for Coping Strategies Questionnaire Total Coping Attempts, Pain Catastrophizing Scale, Arthritis Self-Efficacy, and Patient Global Impression of Arthritis Symptom Change (P < 0.01). Coping Strategies Questionnaire Total Coping Attempts, Arthritis Self-Efficacy, and Patient Global Assessment Change were also significantly improved at 9 months in the CST group, compared with wait list (P < 0.01). The culturally tailored pain CST program did not significantly reduce pain severity but did improve key measures of pain coping and perceived ability to manage pain among African Americans with OA.

Characteristics of frequent users of the emergency department with chronic pain

OBJECTIVES

To identify the proportion of high-frequency users of the emergency department (ED) who have chronic pain.

METHODS

We reviewed medical records of adult patients with ≥ 12 visits to a tertiary-care, academic hospital ED in Canada in 2012-2013. We collected the following demographics: 1) patient age and sex; 2) visit details - number of ED visits, inpatient admissions, length of inpatient admissions, diagnosis, and primary location of pain; 3) current and past substance abuse, mental health and medical conditions. Charts were reviewed independently by two reviewers. ED visits were classified as either "chronic pain" or "not chronic pain" related.

RESULTS

We analyzed 4,646 visits for 247 patients, mean age was 47.2 years (standard deviation = 17.8), and 50.2% were female. This chart review study found 38% of high-frequency users presented with chronic pain to the ED and that women were overrepresented in this group (64.5%). All high-frequency users presented with co-morbidities and/or mental health concerns. High-frequency users with chronic pain had more ED visits than those without and 52.7% were prescribed an opioid. Chronic abdominal pain was the primary concern for 54.8% of high-frequency users presenting with chronic pain.

CONCLUSIONS

Chronic pain, specifically chronic abdominal pain, is a significant driver of ED visits among patients who frequently use the ED. Interventions to support high-frequency users with chronic pain that take into account the complexity of patient's physical and mental health needs will likely achieve better clinical outcomes and reduce ED utilization.

Racial disparities in pre-operative pain, function and disease activity for patients with rheumatoid arthritis undergoing Total knee or Total hip Arthroplasty: a New York based study

Background

Black and Hispanic patients with osteoarthritis have more pain and worse function than Whites at the time of arthroplasty. Whether this is true for patients with rheumatoid arthritis (RA) is unknown.

Methods

This cross-sectional study used data on RA patients acquired between October 2013 and November 2018 prior to elective total knee (TKA) or hip arthroplasty (THA). Pain, function, and disease activity were assessed using the visual analogue scale (VAS), the Multidimensional Health Assessment Questionnaire (MDHAQ), and the Disease Activity Score (DAS28-ESR). We linked the cases to census tracts using geocoding to determine the community poverty level. Race, education, income, insurance and medications were collected via self-report. Using multivariable linear and logistic models we examined whether minority status predicted pain, function and RA disease activity at the time of arthroplasty.

Results

Thirty seven (23%) of the 164 patients were Black or Hispanic (minorities). The MDHAQ and DAS28-ESR were not significantly worse while VAS pain score was significantly worse in minority patients (p = 0.03). There was no significant difference in education between the groups. Insurance varied significantly; 29% of minority patients had Medicaid vs. 0% of Whites (p < 0.0001). In the multivariable analyses minority status was not significantly associated with DAS28-ESR [p = 0.66], MDHAQ [p = 0.26], or VAS pain [p = 0.18].

Conclusions

For Black and/or Hispanic patients with RA undergoing THA or TKA at a high-volume specialty hospital, unlike Black or Hispanic patients with osteoarthritis (OA), there was no association with worse pain, function, or RA disease activity at the time of elective arthroplasty.

The roles of race, sex and cognitions in response to experimental pain

BACKGROUND

This study reports a multivariate test of sex and race differences in experimental pain, and the degree to which these differences could be uniquely attributable to three levels of cognition: primary appraisals (threat, challenge), secondary appraisals (pain catastrophizing) and/or cognitive processes (mindful observing, non-reactivity). Both the predictive and mediator role of the cognitive variables was of interest.

METHODS

The study employed a cross-sectional experimental design, with the cold pressor task employed as the pain stimulus. The total sample included N = 355 healthy adults (67% female, 33% male; 70% Caucasian, 30% Asian).

RESULTS

Significant sex and race differences on pain tolerance were found, with females and racial minorities reporting less pain tolerance (ps < 0.001). Males reported significantly higher challenge appraisals and non-reactivity, and lower pain catastrophizing than females; Asians reported significantly higher threat appraisals and pain catastrophizing than Caucasians. In multivariate analyses, challenge appraisals and non-reactivity emerged as the strongest predictors of pain tolerance. Furthermore, challenge appraisals mediated the sex-pain tolerance association (p = .017).

CONCLUSIONS

This study showed that race and sex differences, at least in part, may be accounted for by differences in pain-related cognitions.

SIGNIFICANCE

The three levels of cognition investigated in this research represent changeable, important processes for potentially mitigating the impact of pain in vulnerable groups.

Assessing peripheral fibers, pain sensitivity, central sensitization, and descending inhibition in Native Americans: main findings from the Oklahoma Study of Native American Pain Risk

Native Americans (NAs) have a higher prevalence of chronic pain than other U.S. racial/ethnic groups, but there have been few attempts to understand the mechanisms of this pain disparity. This study used a comprehensive battery of laboratory tasks to assess peripheral fiber function (cool/warm detection thresholds), pain sensitivity (eg, thresholds/tolerances), central sensitization (eg, temporal summation), and pain inhibition (conditioned pain modulation) in healthy, pain-free adults (N = 155 NAs, N = 150 non-Hispanic Whites [NHWs]). Multiple pain stimulus modalities were used (eg, cold, heat, pressure, ischemic, and electric), and subjective (eg, pain ratings and pain tolerance) and physiological (eg, nociceptive flexion reflex) outcomes were measured. There were no group differences on any measure, except that NAs had lower cold-pressor pain thresholds and tolerances, indicating greater pain sensitivity than NHWs. These findings suggest that there are no group differences between healthy NAs and NHWs on peripheral fiber function, central sensitization, or central pain inhibition, but NAs may have greater sensitivity to cold pain. Future studies are needed to examine potential within-group factors that might contribute to NA pain risk.

Pain-related anxiety promotes pronociceptive processes in Native Americans: bootstrapped mediation analyses from the Oklahoma Study of Native American Pain Risk

INTRODUCTION

Evidence suggests Native Americans (NAs) experience higher rates of chronic pain than the general US population, but the mechanisms contributing to this disparity are poorly understood. Recently, we conducted a study of healthy, pain-free NAs (n = 155), and non-Hispanic whites (NHWs, n = 150) to address this issue and found little evidence that NAs and NHWs differ in pain processing (assessed from multiple quantitative sensory tests). However, NAs reported higher levels of pain-related anxiety during many of the tasks.

OBJECTIVE

The current study is a secondary analysis of those data to examine whether pain-related anxiety could promote pronociceptive processes in NAs to put them at chronic pain risk.

METHODS

Bootstrapped indirect effect tests were conducted to examine whether pain-related anxiety mediated the relationships between race (NHW vs NA) and measures of pain tolerance (electric, heat, ischemia, and cold pressor), temporal summation of pain and the nociceptive flexion reflex (NFR), and conditioned pain modulation of pain/NFR.

RESULTS

Pain-related anxiety mediated the relationships between NA race and pain tolerance and conditioned pain modulation of NFR. Exploratory analyses failed to show that race moderated relationships between pain-related anxiety and pain outcomes.

CONCLUSION

These findings imply that pain-related anxiety is not a unique mechanism of pain risk for NAs, but that the greater tendency to experience pain-related anxiety by NAs impairs their ability to engage descending inhibition of spinal nociception and decreases their pain tolerance (more so than NHWs). Thus, pain-related anxiety may promote pronociceptive processes in NAs to place them at risk for future chronic pain.

Prevalence and intensity of pain during diagnostic hysteroscopy in women attending an infertility clinic: analysis of 489 cases

Objective

To investigate the prevalence and intensity of pain perception during diagnostic hysteroscopy in women and potential related factors.

Methods

A total of 489 women were investigated at an infertility clinic. Fluid diagnostic hysteroscopy was performed without analgesia or anesthesia by gynecologists with different levels of experience in operative hysteroscopy, using a 2.9mm rigid scope. The Visual Analog Scale was used to score pain intensity after vaginal speculum insertion and after hysteroscopy. Data collected included age, ethnicity, body mass index, history of infertility and endometrial surgery (curettage and/or hysteroscopy), smoking habits, and hysteroscopy diagnosis. Only the state of anxiety was assessed by the State-Trait Anxiety Inventory given to each patient before the procedure.

Results

Hysteroscopy median (25^th to 75^th) Visual Analog Scale scored 3.3 (3 to 5), and 41.7% of the women referred Visual Analog Scale score ≥4. Median (25^th to 75^th) State-Trait Anxiety Inventory score was 42 (38 to 45), and 58.3% of the women referred State-Trait Anxiety Inventory score >40. Hysteroscopy Visual Analog Scale score was significantly correlated to surgeon experience and to vaginal speculum insertion but not to State-Trait Anxiety Inventory score, ethnicity or abnormal hysteroscopic findings.

Conclusion

Diagnostic hysteroscopy was mostly perceived as a mild discomfort procedure by most women. Nevertheless, in a considerable number of cases, women perceived hysteroscopy as painful. Pain perception was linked to individual pain threshold and surgeon experience, but not to pre-procedural anxiety state levels, ethnicity or abnormal hysteroscopic findings.

Explaining Chronic Illness and Self-Rated Health Among Immigrants of Five Hispanic Ethnicities

The largest racial/ethnic minority group in the United States, Hispanics, especially Hispanic immigrants, have been considered healthier than groups of other ethnicity (including Whites, the majority). However, chronic illnesses such as cancer and diabetes are often seen in this culturally, ethnically diverse group. The present study had two aims. First was to explain two health outcomes, which were presence of chronic illness (any of the five common conditions cardiovascular disease, stroke, hypertension, cancer, and/or diabetes/prediabetes) and self-rated health, in terms of links to certain factors in acculturation, social status, health, social support, and lifestyle. Second was to determine how uniform these links might be across five ethnic groups: Mexican, Puerto Rican, Cuban, Dominican, Central/South American. We combined data from 17 years of the National Health Interview Survey (1999-2015) and subjected these secondary measures to logistic and linear regression, separately by ethnicity, to explain both outcomes. With few exceptions, results generally linked illness/health to the tested independent variables. Additionally, results confirmed ethnicity to moderate the outcomes' associations with the independent variables. Ethnicity-specific analysis showed the two outcomes to exhibit dissimilar relationships with certain independent variables across ethnic groups. Research that (as has been common) lumps together respondents whose Hispanic ethnicities may differ disregards some meaningful variation rather than accounting for it. In future research-and in subsequent evidence-based policy/practice development-all essential sociocultural factors, including ethnicity, should be carefully outlined, advancing good health for the entire Hispanic immigrant population.

Injustice Appraisal, but not Pain Catastrophizing, Mediates the Relationship Between Perceived Ethnic Discrimination and Depression and Disability in Low Back Pain

Despite growing evidence of significant racial disparities in the experience and treatment of chronic pain, the mechanisms by which these disparities manifest have remained relatively understudied. The current study examined the relationship between past experiences of racial discrimination and pain-related outcomes (self-rated disability and depressive symptomatology) and tested the potential mediating roles of pain catastrophizing and perceived injustice related to pain. Analyses consisted of cross-sectional path modeling in a multiracial sample of 137 individuals with chronic low back pain (Hispanics: n = 43; blacks: n = 43; whites: n = 51). Results indicated a positive relationship between prior discriminatory experiences and severity of disability and depressive symptoms. In mediation analyses, pain-related appraisals of injustice, but not pain catastrophizing, were found to mediate these relationships. Notably, the association between discrimination history and perceived injustice was significantly stronger in black and Hispanic participants and was not statistically significant in white participants. The findings suggest that race-based discriminatory experiences may contribute to racial disparities in pain outcomes and highlight the specificity of pain-related, injustice-related appraisals as a mechanism by which these experiences may impair physical and psychosocial function. Future research is needed to investigate temporal and causal mechanisms suggested by the model through longitudinal and clinical intervention studies. PERSPECTIVE: More frequent prior experiences of racial discrimination are associated with greater depressive symptomatology and pain-related disability in individuals with chronic low back pain. These associations are explained by the degree of injustice perception related to pain, but not pain catastrophizing, and were stronger among black and Hispanic participants.

Genes known to escape X chromosome inactivation predict co-morbid chronic musculoskeletal pain and posttraumatic stress symptom development in women following trauma exposure

Co-morbid chronic musculoskeletal pain (CMSP) and posttraumatic stress symptoms (PTSS) are frequent sequelae of motor vehicle collision, are associated with greater disability than either outcome alone, and are more prevalent in women than men. In the current study we assessed for evidence that gene transcripts originating from the X chromosome contribute to sex differences in vulnerability to CMSP and PTSS after motor vehicle collision. Nested samples were drawn from a longitudinal study of African American individuals, and CMSP (0-10 numeric rating scale) and PTSS (impact of events scale, revised) outcomes were assessed 6 months following motor vehicle collision. Blood RNA were sequenced (n = 101) and the relationship between X chromosome mRNA expression levels and co-morbid CMSP and PTSS outcomes was evaluated using logistic regression analyses. A disproportionate number of peritraumatic X chromosome mRNA predicting CMSP and PTSS in women were genes previously found to escape X chromosome inactivation (11/40, z = -2.9, p = .004). Secondary analyses assessing gene ontology relationships between these genes identified an enrichment in genes known to influence neuronal plasticity. Further, the relationship of expression of two critical regulators of X chromosome inactivation, X-inactive specific transcript (XIST) and Yin Yang 1 (YY1), was different in women developing CMSP and PTSS. Together, these data suggest that X chromosome genes that escape inactivation may contribute to sex differences in vulnerability to CMSP and PTSS after motor vehicle collision.

Sensory, Affective, and Catastrophizing Reactions to Multiple Stimulus Modalities: Results from the Oklahoma Study of Native American Pain Risk

Native Americans (NAs) have a higher prevalence of chronic pain than any other U.S. racial/ethnic group; however, little is known about the mechanisms for this pain disparity. This study used quantitative sensory testing to assess pain experience in healthy, pain-free adults (n = 137 NAs (87 female), n = 145 non-Hispanic whites (NHW; 68 female)) after painful electric, heat, cold, ischemic, and pressure stimuli. After each stimulus, ratings of pain intensity, sensory pain, affective pain, pain-related anxiety, and situation-specific pain catastrophizing were assessed. The results suggested that NAs reported greater sensory pain in response to suprathreshold electric and heat stimuli, greater pain-related anxiety to heat and ischemic stimuli, and more catastrophic thoughts in response to electric and heat stimuli. Sex differences were also noted; however, with the exception of catastrophic thoughts to cold, these finding were not moderated by race/ethnicity. Together, findings suggest NAs experience heightened sensory, anxiety, and catastrophizing reactions to painful stimuli. This could place NAs at risk for future chronic pain and could ultimately lead to a vicious cycle that maintains pain (eg, pain → anxiety/catastrophizing → pain). PERSPECTIVE: NAs experienced heightened sensory, anxiety, and catastrophizing reactions in response to multiple pain stimuli. Given the potential for anxiety and catastrophic thoughts to amplify pain, this characteristic may place them at risk for pain disorders and could lead to a vicious cycle that maintains pain.