A review of psychological risk factors in back and neck pain

Chronic non-specific low back pain disability and depressive symptoms in working men and women: a cross-sectional study

Chronic non-specific low back pain (LBP) is a serious public health issue that impairs the functional abilities of working men and women. The burden and experience of chronic non-specific LBP are largely influenced by psychological and psychosocial aspects. The objective was to investigate the association between the severity of chronic non-specific LBP disability and depressive symptoms in a sample of Croatian working active men and women with an age distribution from 35 to 65 years. The Roland Morris Disability Questionnaire (RMDQ) assessed disability, whereas the Beck Depression Inventory-II assessed depressive symptoms. During the routine outpatient visit self-reported RMDQ and BDI-II were completed from 203 recruited patients, divided into categories concerning disability scores. The median (IQR) age of 48.59 ± 6.48 was in the lower and the median (IQR) age of 50.65 ± 7.68 in the higher disability category. Disability was significantly associated (p < 0.05) with higher age (r = 0.177), working experience (r = 0.161), LBP duration (r = 0.195), greater pain intensity (r = 0.474 during activity, r = 0.227 at rest), and BDI-II score (r = 0.466). Higher BDI-II scores were associated with confirmatory answers on the 15th, 19th, and 22nd questions in RMDQ (p < 0.05). In patients with chronic non-specific LBP, higher degrees of disability were linked to severe depressive symptoms, aging, longer working experience, and increased pain intensity. These findings support pretreatment screening for depressive symptoms in order to develop individually customized and efficient multidisciplinary therapies.

[Avoidance-endurance fast screen : AEFS validation with one- and two-level response scaling in healthy subjects]

BACKGROUND AND OBJECTIVES

Chronic pain affects an enormous number of patients in Germany. Therefore, early detection is important using easy, quick and reasonable screening methods. The avoidance-endurance fast screen is currently available in two different versions: one asking for pain-related behaviour in light and severe pain and the other assessing overall severe pain-related behaviour. In this study we aim to examine the agreement between both scales and for the first time describe the role of protective psychological features such as resilience and self-compassion in this model.

MATERIALS AND METHODS

Epidemiological cross-sectional study (n = 278) of a healthy cohort occasionally experiencing pain (< 3 months). The analysis was done using standard descriptive statistics, correlations (Spearman's rho) and deductive statistics (t-tests and one-factor ANOVA with post hoc Bonferroni correction) and effect sizes (Cohen's d). Matching of the instruments was calculated with Cohen's kappa.

RESULTS

The results showed a moderate agreement for the two versions. A validity check of the subgroups resulted in comparable findings. The one-level version scored higher in terms of pain persistence which caused subgroup changes from adaptive to eustress-endurance responses and from fear-avoidance to distress-endurance responses. The distress-endurance subgroup had significantly lower values of the trait self-compassion.

CONCLUSIONS

Based on the results of this study, the quality of agreement between the two AEFS versions is considered strong. Without the comparison between mild and strong pain, endurance behaviour was reported more often. According to these findings, overestimation of pain persistence behaviour using the one-level version might result. Therefore, future studies should re-evaluate the cut-offs. As reported in previous studies, protective psychological features showed the highest scores in the eustress-endurance subgroup.

Systemic Inflammation, Sleep, and Psychological Factors Determine Recovery Trajectories for People With Neck Pain: An Exploratory Study

We conducted an explorative prospective cohort study with 6 months follow-up to 1) identify different pain and disability trajectories following an episode of acute neck pain, and 2) assess whether neuroimmune/endocrine, psychological, behavioral, nociceptive processing, clinical outcome, demographic and management-related factors differ between these trajectories. Fifty people with acute neck pain (ie, within 2 weeks of onset) were included. At baseline, and at 2, 4, 6, 12, and 26 weeks follow-up, various neuroimmune/endocrine (eg, inflammatory cytokines and endocrine factors), psychological (eg, stress symptoms), behavioral (eg, sleep disturbances), nociceptive processing (eg, condition pain modulation), clinical outcome (eg, trauma), demographic factors (eg, age), and management-related factors (eg, treatment received) were assessed. Latent class models were performed to identify outcome trajectories for neck pain and disability. Linear mixed models or the Pearson chi-square test were used to evaluate differences in these factors between the trajectories at baseline and at each follow-up assessment and over the entire 6 months period. For pain, 3 trajectories were identified. The majority of patients were assigned to the "Moderate pain - Favourable recovery" trajectory (n = 25; 50%) with smaller proportions assigned to the "Severe pain - Favourable recovery" (n = 16; 32%) and the "Severe pain - Unfavourable recovery" (n = 9; 18%) trajectories. For disability, 2 trajectories were identified: "Mild disability - Favourable recovery" (n = 43; 82%) and "Severe disability - Unfavourable recovery" (n = 7; 18%). Ongoing systemic inflammation (increased high-sensitive C-reactive protein), sleep disturbances, and elevated psychological factors (such as depression, stress and anxiety symptoms) were mainly present in the unfavorable outcome trajectories compared to the favorable outcome trajectories. PERSPECTIVE: Using exploratory analyses, different recovery trajectories for acute neck pain were identified based on disability and pain intensity. These trajectories were influenced by systemic inflammation, sleep disturbances, and psychological factors.

Biobehavioral Predictors of Pain Intensity, Pain Interference, and Chronic Pain Episodes: A Prospective Cohort Study of African-American Adults

Racial disparities in pain experiences are well-established, with African-American (AA) adults reporting higher rates of daily pain, increased pain severity, and greater pain-related interference compared to non-Hispanic Whites. However, the biobehavioral factors that predict the transition to chronic pain among AA adults are not well understood. This prospective cohort study provided a unique opportunity to evaluate predictors of chronic pain onset among 130 AA adults (81 women), ages 18 to 44, who did not report chronic pain at their baseline assessment and subsequently completed follow-up assessments at 6- and 12-months. Outcome measures included pain intensity, pain-related interference, and chronic pain status. Comprehensive assessments of sociodemographic and biobehavioral factors were used to evaluate demographics, socioeconomic status, stress exposure, psychosocial factors, prolonged hypothalamic-pituitary-adrenal secretion, and quantitative sensory testing responses. At baseline, 30 adults (23.1%) reported a history of prior chronic pain. Over the 12-month follow-up period, 13 adults (10.0%) developed a new chronic pain episode, and 18 adults (13.8%) developed a recurrent chronic pain episode. Whereas socioeconomic status measures (ie, annual income, education) predicted changes in pain intensity over the follow-up period, quantitative sensory testing measures (ie, pain threshold, temporal summation of pain) predicted changes in pain interference. A history of chronic pain and higher depressive symptoms at baseline independently predicted the onset of a new chronic pain episode. The present findings highlight distinct subsets of biobehavioral factors that are differentially associated with trajectories of pain intensity, pain-related interference, and onset of chronic pain episodes in AA adults. PERSPECTIVE: This prospective study sought to advance understanding of biobehavioral factors that predicted pain outcomes over a 12-month follow-up period among AA adults without chronic pain at their initial assessment. Findings revealed distinct subsets of factors that were differentially associated with pain intensity, pain-related interference, and onset of chronic pain episodes.

Epidemiology of Work-Related Neck Pain Among Spine Surgeons

STUDY DESIGN

Cross-sectional survey.

OBJECTIVES

This study aimed to investigate work-related neck pain among AO spine surgeons in different regions by estimating its prevalence, predictors, consequences, and management methods.

METHODS

A cross-sectional survey of 411 spine surgeon members of AO spine was conducted during March-May 2021, using the Modified Nordic Questionnaire and the Neck Disability Index. Data on neck pain experience during the last 12 months and its consequences and risk factors were collected. Logistic regression analysis was done to identify significant predictors of neck pain. Significance was set at P < .05.

RESULTS

The 1-year neck pain was experienced by 66.7% of surgeons. According to the Neck Disability Index, more than one-half (52.8%) experienced disability due to neck pain of mild (45.5%), moderate (6.5%), and severe (.8%) grades. Neck pain was responsible for stopping work in 17.5% of surgeons, with a median of 3.5 (IQR, 2-7.8) days off work. One-half of the participants (56.3%) were treated by medical care, 31.5% by physiotherapy, and 16.5% requested rest days and sick leave. Physical stress (P < .001) and non-exercising (P = .04) were the significant predictors of neck pain.

CONCLUSION

The 12-month prevalence of neck pain was high among spine surgeons, with an impact on activities of daily living, mainly of a mild degree, reported by one-half of surgeons. Physical stress was the only significant predictor, while sports practice was a protective factor against neck pain. Medication was the primary management adopted-an increased focus on pain prevention through improved workplace ergonomics and sports activity programs is recommended.

Sex Differences in the Serum Proteomic Profile During Acute Low Back Pain-A Preliminary Study of the Relationship to Future Low Back Pain

The molecular processes driving the transition from acute to chronic low back pain (LBP) remain poorly understood and are likely to be sexually dimorphic. This study aimed to explore sex differences in the serum proteomic profile of people experiencing an acute LBP episode and determine if serum protein concentrations were associated with three-month outcome. Serum samples were collected through venepuncture from 30 female and 29 male participants experiencing an acute LBP episode. Serum samples underwent trypsin digestion and fractionation using hydrophobic interaction chromatography and were then analysed using mass-spectrometry. Mass-spectrometry spectra were searched in the Swissprot database for protein identification. Sex differences in protein abundance changes were evident upon inspection of fold changes. Multivariable data analysis identified 21 serum proteins during the acute episode that correctly classified 93% of males and 23 serum proteins that correctly classified 90% of females with ongoing LBP at 3 months. Pathway analysis suggested the differentially expressed proteins during acute LBP were frequently involved in immune, inflammatory, complement, or coagulation responses. This data provides preliminary evidence that biological processes during an acute LBP episode may contribute to the resolution, or persistence, of LBP symptoms at 3 months, however, these processes differ between males and females. PERSPECTIVE: Differential expression of serum proteins was observed between male and female participants during an acute LBP episode. This preliminary work provides a foundation for future research targeting distinct immune system processes in males and females that may interfere with the transition from acute to chronic LBP.

Neck Pain, Mental Status, and Associated Factors Among Hospital Secretaries: A Cross-Sectional Study From Turkey

Introduction

Neck disorders occur in the presence of various risk factors. Determining the cause-effect relationship is highly important in treating existing health problems. Our study aimed to determine the relationship between neck pain and mental status and the factors affecting them in hospital secretaries.

Materials and Methods

The study was cross-sectional. A total of 427 people who had been working as hospital secretaries at Gazi University Medical Faculty Hospital for at least one year were included in the study. Sociodemographic characteristics, working conditions, psychopathology levels, and the presence of neck pain were questioned. The study was conducted with 354 (82.9%) people.

Results

34.3% of the hospital secretaries had neck pain, and 26.3% required psychiatric evaluation. There was a statistically significant (p<0.001) difference in neck pain according to gender, adjustability of the chair, accessibility of the tools, and the need for psychiatric evaluation. Data was collected during November 2022. Those who did neck exercises during the study period had lower mean scores on the General Health Questionnaire-12 than those who did not, and the difference was statistically significant (p<0.001). According to the General Health Questionnaire-12 scores and the Bournemouth Neck Pain Questionnaire Scale, there is a significant (p<0.001), positive, and moderate (r=0.481) correlation between the frequency of mental problems and neck pain disability levels.

Conclusion

The relationship between the need for psychiatric status evaluation and neck pain is striking. A significant proportion of hospital secretaries complain of neck pain, work in non-ergonomic conditions, and need psychiatric evaluation. The study's results underline the necessity of targeted workplace interventions and wellness procedures, highlighting the need to implement ergonomic improvements, promote regular exercise regimes, and provide psychosocial support services to improve the general well-being of hospital secretaries and develop a better working environment.

Impact of Musculoskeletal Pain on Health-Related Quality of Life Among Adults in Saudi Arabia

Background Musculoskeletal pain (MSP) is widely recognized as a prevalent public health issue that affects individuals of various genders and age groups. The aim of this study is to assess the influence of musculoskeletal pain on the quality of life (QoL) of adult individuals living in Saudi Arabia. Method This is a cross-sectional study using an online-administered questionnaire that was distributed via online platforms in Saudi Arabia for the duration between January and August 2023. Three questionnaire instruments were used in this study. The 36-item Short Form Health Survey questionnaire (SF-36), The 5-level EQ-5D version (EQ-5D-5L), and Roland-Morris Disability Questionnaire. Binary logistic regression analysis was used to identify predictors of better QoL and having mild to moderate disability. Results A total of 8359 participants were involved in this study. The most commonly reported sites of musculoskeletal pain were the lower back, neck, and shoulder, accounting for 36.8% (n= 3072), 30.5% (n= 2549), and 30.1% (n= 2514), respectively. The mean pain score for the study participants was 4.3 (SD: 2.3), which indicates mild degree of pain. The median EQ-5D-5L index value for the study participants was 0.827 (0.756-1.00), which demonstrates a high quality of life. The mean SF-36 score for the study participants was 63.11 (17.4), which demonstrates moderate quality of life. The median Roland-Morris Disability score for the study participants was 1.00 (0.00-7.00), which demonstrates a low level of pain-related disability. Male gender, younger age (30-39 years), having higher education attainment, having higher monthly income (more than SAR 20000), and having lower BMI (less than 25.8 kg/cm2) were predictors of better QoL (p<0.05). Conclusion Musculoskeletal pain is a multifactorial condition influenced by structural, physical, psychological, social, lifestyle, and comorbid health elements. It ranges from acute to chronic pain and, despite rarely being fatal, has a significant impact on QoL. Musculoskeletal discomfort varies in terms of intensity, affected regions, and demographic and lifestyle factors. This study sheds light on the multifaceted nature of MSP, its impact on QoL, and the significance of early intervention and individualized management strategies to improve the QoL of those affected.

The relationship of behavioral and psychological traits with pain sensitivity in females with patellofemoral pain: A cross-sectional study

OBJECTIVE

The purpose of this study was to describe the relationship between behavioral and psychological traits with indicators of central sensitization in female runners with patellofemoral pain (PFP), and to determine if behavioral and psychological traits improve with strength training.

DESIGN

Cross-sectional study.

SETTING

University laboratory.

PARTICIPANTS

Twenty-eight active females (mean age 32 ± 8.1 years) with PFP completed testing at baseline, 8 weeks (post intervention), and 12 weeks.

MAIN OUTCOME MEASURES

Behavioral and psychological questionnaires included the General Anxiety Disorder-7, Patient Health Questionairre-9, Pain Catastrophizing Scale, Tampa Scale of Kinesiophobia-11, and Central Sensitization Inventory. Quantitative sensory testing (QST) measures were also collected. After baseline testing, subjects were instructed in a hip and knee strengthening intervention to be completed twice daily over 8 weeks.

RESULTS

A statistically significant improvement was found at 12 weeks for anxiety (p = .015; ηp (Boling et al., 2010) = 0.099) and kinesiophobia (p = .041; ηp (Boling et al., 2010) = 0.076). There was no significant improvement for depression, catastrophizing, or subjective central sensitization. No significant correlations were found between any of the behavioral and psychological questionnaires with baseline QST variables.

CONCLUSIONS

No relationship was found for behavioral and psychological characteristics with QST measures in female runners with persistent PFP.

The top 100 highly cited articles on neck pain: A bibliometric analysis

Objective

Neck pain has emerged as a significant public health concern. This study is to unveil the present state of neck pain research, thereby furnishing invaluable insights for prospective research endeavours and clinical applications.

Methods

The study was initiated by searching the Web of Science Core Collection database, focusing on "neck pain". From the amassed results, the top 100 most cited references were imported into CiteSpace and VOSviewer, enabling a rigorous bibliometric analysis. To ensure precision, synonymous terms conveying similar meanings were harmonized. The bibliometric study encompassed countries, research institutions, authors, journals, and keyword analysis.

Results

The investigation centered on a curated compilation of 100 articles, disseminated across a diverse array of 36 scholarly journals. These seminal articles originated from 24 distinct countries, reflecting contributions from a wide spectrum of 188 research institutions. Impressively, a collaborative effort involving 385 authors emerged. Noteworthy core research countries included the United States and Australia, with the University of Queensland and the University of Toronto asserting notable influence. Prolific authors such as J. David Cassidy and Pierre Cote garnered attention. Present research endeavours pivot around the incidence of neck pain, the identification of risk factors, the efficacy evaluation of treatment modalities, and a pronounced focus on high-quality randomized controlled trials and systematic reviews.

Conclusion

The study shines a light on key research countries, influential institutions, prominent authors, and prevalent trends, effectively contributing to comprehending the knowledge landscape and research dynamics in the field of neck pain.

Prevention of neck pain in adults with a Back School-Based intervention: a randomized controlled trial

BACKGROUND

Neck pain is a health problem worldwide. To prevent it, experts recommend exercise and education.

OBJECTIVE

To evaluate the effects of a Back School-based intervention for the prevention of nonspecific neck pain in a healthy adult population.

METHODS

A randomized controlled trial with 58 participants with no history of neck pain within the past six months. The experimental group performed an 8-week Back School-based program. The control group maintained their usual lifestyle. Primary outcomes, which include the number of episodes, days and intensity of neck pain, and the number of medical visits, were recorded in a 1-year follow-up diary and analyzed using the Mann-Whitney test. Secondary outcomes, such as neck flexor, neck extensor, and scapular muscles endurance, were analyzed using the ANOVA test.

RESULTS

In the analysis of the primary outcomes, no significant differences were found in the number of episodes (p = 0.068,d = -0.49), number of days (p = 0.059,d = -0.54), or the average intensity of neck pain (p = 0.061,d = -0.53). There were significant changes in the number of medical visits (p = 0.033,d = -0.57). Moving to secondary outcomes, significant interactions were observed in neck flexor (p = 0.045, ηp2 = 0.036) and neck extensor endurance (p = 0.049, ηp2 = 0.035), but not in scapular muscle endurance (p = 0.536, ηp2 = 0.003).

CONCLUSIONS

The Back School-based program reduced the number of medical visits and increased the endurance of the cervical musculature. Trial registration in ClinicalTrials.gov: NCT05260645.

Interpretation bias and the transition from acute to chronic pain

ABSTRACT

Most theories of pain emphasize cognitive factors in the development of chronicity, but they have rarely been studied in the context of the transition from acute to chronic pain. The aim of the present study was to assess the role of interpretation bias, pain anxiety, and pain avoidance in acute and chronic pain and the transition from acute to chronic pain. Study 1 recruited a sample of N = 85 adults with chronic pain. Study 2 recruited a sample of N = 254 adults with acute pain and followed them up 3 months later. Both studies assessed interpretation bias with the word association task, as well as measuring pain-related anxiety, pain avoidance, pain severity, and pain interference. In study 2, pain outcomes at 3 months were also assessed. Across both acute and chronic pain samples, interpretation bias was associated with pain interference, but not pain severity. Path analysis mediation models for study 2 showed that interpretation bias was associated with increased pain anxiety, which predicted both pain severity and pain interference 3 months later. Pain anxiety was also associated with pain avoidance, but pain avoidance did not predict pain outcomes. This research provides further insight into the transition from acute to chronic pain, suggesting that interpretation bias in acute pain may play a role in pain-related anxiety that drives pain interference, thus maintaining chronic pain. These findings hold promise for further research into potential large-scale preventative interventions targeting interpretation bias and pain anxiety in acute pain.

Pain-Associated Psychological Distress Is of High Prevalence in Patients With Hip Pain: Characterizing Psychological Distress and Phenotypes

Purpose

To identify common pain-related psychological factors among patients seeking care for athletic hip pain, as well as characterize psychological distress phenotypes and compare hip-specific quality-of-life measures across those phenotypes.

Methods

A total of 721 patients were recruited from hip preservation clinics. The Optimal Screening for Prediction of Referral and Outcome-Yellow Flag Assessment Tool (OSPRO-YF) was used to identify the presence or absence of 11 different pain-associated psychological distress characteristics (yellow flags), while the International Hip Outcome Tool-12 (iHOT-12) was used to assess hip-related quality of life. Latent class analysis identified patient subgroups (phenotypes) based on naturally occurring combinations of distress characteristics. An analysis of variance was used to compare demographics, number of yellow flags, and iHOT-12 scores across phenotypes.

Results

The median (interquartile range) number of yellow flags was 6 (3-9), with 13.5% of the sample reporting 11 yellow flags. Latent class analysis (L2 = 543.3, classification errors = 0.082) resulted in 4 phenotypes: high distress (n = 299, 41.5%), low distress (n = 172, 23.9%), low self-efficacy and acceptance (n = 74, 10.3%), and negative pain coping (n = 276, 24.4%). Significant differences in mean yellow flags existed between all phenotypes except low self-efficacy and negative pain coping. There were no differences in demographics between phenotypes. The high distress class had the lowest mean iHOT-12 score (mean [SD], 23.5 [17.6]), with significant differences found between each phenotypic class.

Conclusions

There was a high prevalence of pain-associated psychological distress in patients presenting to tertiary hip arthroscopy clinics with hip pain. Furthermore, hip quality-of-life outcome scores were uniformly lower in patients with higher levels of psychological distress.

Level of Evidence

Level III, retrospective cohort study.

In-person cognitive behavioural therapy vs. usual care after surgical management of extremity fractures: an unsuccessful feasibility trial

BACKGROUND

Extremity fractures are common, and most are managed operatively; however, despite successful reduction, up to half of patients report persistent post-surgical pain. Furthermore, psychological factors such as stress, distress, anxiety, depression, catastrophizing, and fear-avoidance behaviors have been associated with the development of chronic pain. The purpose of this pilot study was to examine the feasibility of a randomized controlled trial to determine the effect of in-person cognitive behavioral therapy (CBT) vs. usual care on persistent post-surgical pain among patients with a surgically managed extremity fracture.

METHODS

Eligible patients were randomized to either in-person CBT or usual care. We used four criteria to judge the composite measure of feasibility: 1) successful implementation of CBT at each clinical site, 2) 40 patients recruited within 6 months, 3) treatment compliance in a minimum 36 of 40 participants (90%), and 4) 32 of 40 participants (80%) achieving follow-up at one year. The primary clinical outcome was persistent post-surgical pain at one year after surgery.

RESULTS

Only two of the four participating sites were able to implement the CBT regimen due to difficulties with identifying certified therapists who had the capacity to accommodate additional patients into their schedule within the required timeframe (i.e., 8 weeks of their fracture). Given the challenges associated with CBT implementation, only one site was able to actively recruit patients. This site screened 86 patients and enrolled 3 patients (3.5%) over a period of three months. Participants were unable to comply with the in-person CBT, with no participants attending an in-person CBT session. Follow-up at one year could not be assessed as the pilot study was stopped early, three months into the study, due to failure to achieve the other three feasibility criteria.

CONCLUSION

Our pilot trial failed to demonstrate the feasibility of a trial of in-person CBT versus usual care to prevent persistent pain after surgical repair of traumatic long-bone fractures and re-enforces the importance of establishing feasibility before embarking on definitive trials. Protocol modifications to address the identified barriers include the delivery of our intervention as a therapist-guided, remote CBT program.

TRIAL REGISTRATION

ClinicalTrials.gov (Identifier NCT03196258); Registered June 22, 2017, https://clinicaltrials.gov/ct2/show/NCT03196258.

Specific Neurodynamic Exercises on Pain and Disability in Old Women with Chronic Mechanical Neck Pain: A Randomized Controlled Trial

Neurodynamic exercise is a specific type of exercise used as a neural treatment that focuses on restoring altered homeostasis in the neuroimmune system by mobilising the nervous system and other structures. A prospective, randomized clinical trial was performed to evaluate the effect of neurodynamic exercises on disability and neck pain in elderly women over four weeks. Participants were randomized into two groups: a neurodynamic (NM) group (n = 28) and a non-specific exercise (NSE) group (n = 28). Inclusion criteria were women over 65 years of age who subjectively admitted to having mechanical neck pain for more than six months. Results showed that specific neurodynamic exercises can improve pain and disability in older women with chronic mechanical neck pain. Improvements were observed in all variables (p < 0.05). Significant between-group differences in favour of the NM group were only found for neck pressure pain thresholds and both tibialis anterior muscles. Larger effect sizes were obtained in favour of the NM group, especially for pain, disability, neck extension and inclination and pressure pain thresholds. Neurodynamic exercises have been shown to be more clinically relevant in disability and neck pain in older women.

Effectiveness of Self-Care Education for Chronic Neck Pain: A Systematic Review and Meta-Analysis

Self-care programs for chronic neck pain are relevant to everyday life and can lead to long- term improvement. More studies on their effectiveness, key components and appropriate duration are needed. The aim of this study was to determine the effectiveness of self-care programs for patients with chronic neck pain. A systematic review and meta-analysis of randomized controlled trials was conducted according to the PRISMA guidelines. After searching in PubMed, Web of Science, Scopus and ScienceDirect, eleven studies met the inclusion criteria. Self-care education interventions typically consisted of education (i.e., pain neuro-science education or general educational concepts) accompanied by exercise or manual therapy. The most frequent components were addressing physical and psychological symptoms and engaging in self-care strategies. The least frequent ones were monitoring and recording symptoms and discussing with providers of medical care. The duration of the interventions ranged from three sessions to six months. Finally, individual and supervised modalities were the most frequent. After pooling the data, a meta-analysis was carried out according to four variables (i.e., pain, disability, kinesiophobia and catastrophization) and showed significant results (p < 0.05) in favor of self-care interventions. This systematic review and meta-analysis suggests that self-education interventions improve pain, psychological pain-related variables and disability in patients with chronic neck pain. The most frequently used components were addressing physical and psychological symptoms and engaging in self-care strategies. Future trials should focus on including other components, such as discussing symptoms with providers of medical care or self-monitoring symptoms. Additional areas of focus include more homogeneous doses and comparator treatments, as well as studies with better evidence to reach more solid conclusions.

The effect of psychological factors on pain outcomes: lessons learned for the next generation of research

Big data and machine learning techniques offer opportunities to investigate the effects of psychological factors on pain outcomes. Nevertheless, these advances can only deliver when the quality of the data is high and the underpinning causal assumptions are considered. We argue that there is room for improvement and identify some challenges in the evidence base concerning the effect of psychological factors on the development and maintenance of chronic pain. As a starting point, 3 basic tenets of causality are taken: (1) cause and effect differ from each other, (2) the cause precedes the effect within reasonable time, and (3) alternative explanations are ruled out. Building on these tenets, potential problems and some lessons learned are provided that the next generation of research should take into account. In particular, there is a need to be more explicit and transparent about causal assumptions in research. This will lead to better research designs, more appropriate statistical analyses, and constructive discussions and productive tensions that improve our science.

The Efficacy and Feasibility of an Interoceptive Exposure Technique for Preventing the Transition From Subacute to Chronic Back Pain by Altering the Emotional Response to Pain: Protocol for a Pilot Randomized Controlled Trial

BACKGROUND

Psychological factors such as stress, anxiety, mood, emotions, cognitive functioning, and pain behavior are relevant to the onset of pain and its continuation in the transition to chronic conditions. Subacute low back pain (LBP), a precursor to chronic LBP, is particularly poorly understood, and its relationships with psychological factors are understudied.

OBJECTIVE

We will conduct a study aiming to prevent the chronicity of subacute LBP by altering the emotional response to pain using an interoceptive exposure technique (IET). Considering the recent increase in knowledge about psychological risk factors, as well as recent findings in cognitive neuroscience regarding emotional and cognitive background factors in the LBP chronicity process, efforts should be made to discover effective preventive methods.

METHODS

We present a novel method aiming to prevent the transition from subacute to chronic back pain by altering the emotional response to pain using an IET. In this pilot randomized controlled trial, participants who are at a higher risk of LBP chronification due to the presence of a biomarker (ie, functional connectivity between the medial prefrontal cortex and nucleus accumbens) will be randomly assigned to the IET intervention group or control group A (treatment as usual). Participants who do not present with the biomarker will be assigned to control group B (treatment as usual) to assess how well this biomarker predicts the chronification of subacute LBP in this study population. Questionnaires measuring the pain experience and psychological distress will be used before the intervention, after the intervention (at 3 months), and at the 12-month follow-up.

RESULTS

This research project will combine 2 novel methods: a biomarker as the inclusion criterion and an IET as the intervention. The comparative study design enables evaluation of the efficacy of the IET, as well as replication of the biomarker's validity as a possible clinical screening method.

CONCLUSIONS

If found to be useful, the IET would offer a cost-effective and reasonable way to develop treatment for acute and subacute back pain conditions. Potential benefits include increased pain management and quality of life for the individual patient with the addition of a potentially useful functional pain management method at the societal level.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05450263; https://clinicaltrials.gov/ct2/show/NCT05450263.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

PRR1-10.2196/45701.

Pain Control Beliefs Predict Premature Withdrawal From the Labor Market in Workers With Persistent Pain: Prospective Cohort Study With 11-Year Register Follow-up

While a range of work-related psychosocial factors has been associated with various pain disorders and early retirement, less is known about pain cognitions and their influence on premature exit from the labor market. Therefore, as a primary objective, this study investigates associations between pain control beliefs and risk of disability pension among Danish eldercare workers. In 2005, 2257 female eldercare workers with low-back and/or neck/shoulder pain>90 days within the previous 12 months, replied to a survey and were followed for 11 years in a national register of social transfer payments. Using Cox regression, we estimated the risk of disability pension during follow-up from experiencing different levels of "pain control" and "pain influence," controlling for pain intensity and other relevant confounders. In the fully adjusted model for pain control with "high" as reference, hazard ratios of 1.30 (95% CI 1.03-1.64) and 2.09 (95% CI 1.45-3.01) are observed for "moderate" and "low," respectively, while the metric of pain influence shows hazard ratios of 1.43 (95% CI 1.11-1.87) and 2.10 (1.53-2.89), respectively. Pain control beliefs are associated with disability pension among eldercare workers with persistent pain. These results highlight the importance of evaluating not only bodily manifestations of pain, but also individual pain-related cognitions that may influence the experience of pain. PERSPECTIVE: This article addresses the complex experience of pain within an organizational context. We introduce the metrics of "pain control" and "pain influence" among workers with persistent pain, showing that the psychometric properties of these measures are prospectively associated with premature exit from the labor market.

Does Multisession Cathodal Transcranial Direct Current Stimulation of the Left Dorsolateral Prefrontal Cortex Prime the Effects of Cognitive Behavioral Therapy on Fear of Pain, Fear of Movement, and Disability in Patients with Nonspecific Low Back Pain? A Randomized Clinical Trial Study

Many studies have shown that low back pain (LBP) is associated with psychosomatic symptoms which may lead to brain changes. This study aimed to investigate the effect of the concurrent application of cognitive behavioral therapy (CBT) and transcranial direct electrical stimulation (tDCS) over the left dorsolateral prefrontal cortex (DLPFC) on fear of pain, fear of movement, and disability in patients with nonspecific LBP. This study was performed on 45 LBP patients (23 women, 22 men; mean age 33.00 ± 1.77 years) in three groups: experimental (2 mA cathodal tDCS (c-tDCS)), sham (c-tDCS turned off after 30 s), and control (only received CBT). In all groups, CBT was conducted for 20 min per session, with two sessions per week for four weeks. Fear of pain, fear of movement, and disability were evaluated using questionnaires at baseline, immediately after, and one month after completion of interventions. Results indicated that all three different types of intervention could significantly reduce fear and disability immediately after intervention (p > 0.05). However, improvement in the experimental group was significantly higher than in the other groups immediately after and at the one-month follow-up after interventions (p < 0.05). DLPFC c-tDCS can prime the immediate effects of CBT and also the lasting effects on the reduction in the fear of pain, fear of movement, and disability in LBP patients.

Catastrophizing and acceptance are mediators between insomnia and pain intensity-an SQRP study of more than 6,400 patients with non-malignant chronic pain conditions

Background

Sleep problems (insomnia) and chronic pain are associated. Chronic pain and insomnia/insufficient sleep quality share similar symptoms and features. Although they have a bidirectional relationship, more research is needed to understand how they interact via mediators and how moderators influence this relationship.

Aims

In this large clinical registry-based cohort study (N = 6,497), we investigate important mediators between insomnia and pain intensity in a cross-sectional sample of chronic pain patients using advanced path analysis. In addition, we investigate whether some background variables were moderators of the identified important paths or not and the correlation patterns between insomnia and pain intensity in relation to the mediators.

Methods

This study includes a cohort of adult patients with chronic non-cancer pain from the Swedish Quality Registry for Pain Rehabilitation (SQRP) with data on patient-reported outcome measures (PROMs) (2008-2016). The PROMs cover the background, pain aspects, psychological distress, pain-related cognitions, activity/participation, and health-related quality of life variables of the patients. Partial least squares structural equation modeling was used to explore the direct and indirect (via mediators) relationships between insomnia and pain intensity at baseline.

Results

In this cohort study, insomnia was prevalent at 62.3%, and both direct and indirect mediating paths were present for the insomnia-pain intensity relationship. All of the mediating effects combined were weaker than the direct effect between insomnia and pain intensity. The mediating effects via catastrophizing and acceptance showed the strongest and equal mediating paths, and mediating effects via fear avoidance were the second strongest. Insomnia showed stronger direct significant correlations with psychological distress, catastrophizing, and acceptance compared with those of pain intensity. Sex, age, education level, spatial extent of pain, or body mass index did not moderate the mediating paths.

Discussion and conclusion

This study confirms the existence of significant direct and mediating paths between reported insomnia and pain intensity. Future studies should focus on illuminating how sleep interventions influence pain intensity and other important key factors that contribute to the distress of chronic pain patients.

A Novel Classification of Endometriosis Based on Clusters of Comorbidities

Endometriosis is a heterogeneous, complex, and still challenging disease, due to its epidemiological, etiological and pathogenic, diagnostic, therapeutic, and prognosis characteristics. The classification of endometriosis is contentious, and existing therapies show significant variability in their effectiveness. This study aims to capture and describe clusters of women with endometriosis based on their comorbidity. With data extracted from electronic records of primary care, this study performs a hierarchical clustering with the Ward method of women with endometriosis with a subsequent analysis of the distribution of comorbidities. Data were available for 4055 women with endometriosis, and six clusters of women were identified: cluster 1 (less comorbidity), cluster 2 (anxiety and musculoskeletal disorders), cluster 3 (type 1 allergy or immediate hypersensitivity); cluster 4 (multiple morbidities); cluster 5 (anemia and infertility); and cluster 6 (headache and migraine). Clustering aggregates similar units into similar clusters, partitioning dissimilar objects into other clusters at a progressively finer granularity-in this case, groups of women with similarities in their comorbidities. Clusters may provide a deeper insight into the multidimensionality of endometriosis and may represent diverse "endometriosis trajectories" which may be associated with specific molecular and biochemical mechanisms. Comorbidity-based clusters may be important to the scientific study of endometriosis, contributing to the clarification of its clinical complexity and variability. An awareness of those comorbidities may help elucidate the etiopathogenesis and facilitate the accurate earlier diagnosis and initiation of treatments targeted toward particular subgroups.

Predicting chronic postsurgical pain: current evidence and a novel program to develop predictive biomarker signatures

ABSTRACT

Chronic pain affects more than 50 million Americans. Treatments remain inadequate, in large part, because the pathophysiological mechanisms underlying the development of chronic pain remain poorly understood. Pain biomarkers could potentially identify and measure biological pathways and phenotypical expressions that are altered by pain, provide insight into biological treatment targets, and help identify at-risk patients who might benefit from early intervention. Biomarkers are used to diagnose, track, and treat other diseases, but no validated clinical biomarkers exist yet for chronic pain. To address this problem, the National Institutes of Health Common Fund launched the Acute to Chronic Pain Signatures (A2CPS) program to evaluate candidate biomarkers, develop them into biosignatures, and discover novel biomarkers for chronification of pain after surgery. This article discusses candidate biomarkers identified by A2CPS for evaluation, including genomic, proteomic, metabolomic, lipidomic, neuroimaging, psychophysical, psychological, and behavioral measures. Acute to Chronic Pain Signatures will provide the most comprehensive investigation of biomarkers for the transition to chronic postsurgical pain undertaken to date. Data and analytic resources generatedby A2CPS will be shared with the scientific community in hopes that other investigators will extract valuable insights beyond A2CPS's initial findings. This article will review the identified biomarkers and rationale for including them, the current state of the science on biomarkers of the transition from acute to chronic pain, gaps in the literature, and how A2CPS will address these gaps.

Virtual Human-Delivered Interviews for Patients With Chronic Pain: Feasibility, Acceptability, and a Pilot Randomized Trial of Standard Medical, Psychosocial, and Educational Interviews

OBJECTIVE

Seminal advances in virtual human (VH) technology have introduced highly interactive, computer-animated VH interviewers. Their utility for aiding in chronic pain care is unknown. We developed three interactive telehealth VH interviews-a standard pain-focused, a psychosocial risk factor, and a pain psychology and neuroscience educational interview. We then conducted a preliminary investigation of their feasibility, acceptability, and efficacy. We also experimentally compared a human and a computer-generated VH voice.

METHODS

Patients ( N = 94, age = 22-78 years) with chronic musculoskeletal pain were randomly assigned to the standard ( n = 31), psychosocial ( n = 34), or educational ( n = 29) VH interview and one of the two VH voices. Acceptability ratings included patient satisfaction and expectations/evaluations of the VH interview. Outcomes assessed at baseline and about 1-month postinterview were pain intensity, interference, emotional distress, pain catastrophizing, and readiness for pain self-management. Linear mixed-effects models were used to test between- and within-condition effects.

RESULTS

Acceptability ratings showed that satisfaction with the VH and telehealth format was generally high, with no condition differences. Study attrition was low ( n = 5). Intent-to-treat-analyses showed that, compared with the standard interview, the psychosocial interview yielded a significantly greater reduction in pain interference ( p = .049, d = 0.43) and a marginally greater reduction in pain intensity ( p = .054, d = 0.36), whereas the educational interview led to a marginally greater yet nonsignificant increase in readiness for change ( p = .095, d = 0.24), as well as several significant improvements within-condition. Results did not differ by VH voice.

CONCLUSIONS

Interactive VH interviewers hold promise for improving chronic pain care, including probing for psychosocial risk factors and providing pain-related education.

Protocol for a Parallel Group Randomized Clinical Trial Comparing a Culturally Adapted Cognitive Behavioral Telerehabilitation Intervention to Usual Physical Therapy for Latino Patients With Chronic Spine Pain

OBJECTIVE

Disparities exist in health care access, diagnosis, and treatment of chronic pain in Latino populations and other minority populations. Cognitive behavioral-based physical therapy (CBPT) interventions have been shown to be effective in predominantly non-Hispanic white populations with chronic spine pain. However, there is a need for culturally adapted CBPT interventions that focus on the conservative management of chronic spine pain. The primary purpose of the study described in this protocol is to test the efficacy of an adapted cognitive behavioral-based hybrid telerehabilitation intervention for Latino patients with chronic spine pain.

METHODS

A single-blind, 2-arm parallel group, superiority randomized clinical trial is planned to compare an adapted CBPT intervention to Usual Care physical therapy. Goal Oriented Activity for Latinos with chronic Spine pain (GOALS/Metas) is an 8-week hybrid telerehabilitation intervention that integrates guideline-based physical therapy and pain management interventions using cognitive behavioral approaches and has been adapted for Latino patients with chronic spine pain. Usual Care physical therapy will be administered based on institutional standards at the referring health center. Outcome measures will be evaluated preintervention and at 1-week, 3-months, and 6-months postintervention. The primary outcome is pain-related disability 1-week postintervention using the Brief Pain Inventory Pain Interference subscale. Secondary outcome measures include behavioral measures of functional activity, social participation, physical activity, and sleep. Determinants of treatment effect, including pain-related psychological measures, posture and movement, self-efficacy, treatment expectancy, and therapeutic alliance, will be included in the secondary moderation and mediation analyses.

IMPACT

This clinical trial will provide information on the extent to which an adapted CBPT hybrid telerehabilitation intervention is effective in reducing pain-related disability for Latino patients with chronic spine pain. This information will be useful for clinicians to integrate in their practice, given the growing population of Latino patients who experience disparities in health care management of chronic pain.

Evidence- and data-driven classification of low back pain via artificial intelligence: Protocol of the PREDICT-LBP study

In patients presenting with low back pain (LBP), once specific causes are excluded (fracture, infection, inflammatory arthritis, cancer, cauda equina and radiculopathy) many clinicians pose a diagnosis of non-specific LBP. Accordingly, current management of non-specific LBP is generic. There is a need for a classification of non-specific LBP that is both data- and evidence-based assessing multi-dimensional pain-related factors in a large sample size. The "PRedictive Evidence Driven Intelligent Classification Tool for Low Back Pain" (PREDICT-LBP) project is a prospective cross-sectional study which will compare 300 women and men with non-specific LBP (aged 18-55 years) with 100 matched referents without a history of LBP. Participants will be recruited from the general public and local medical facilities. Data will be collected on spinal tissue (intervertebral disc composition and morphology, vertebral fat fraction and paraspinal muscle size and composition via magnetic resonance imaging [MRI]), central nervous system adaptation (pain thresholds, temporal summation of pain, brain resting state functional connectivity, structural connectivity and regional volumes via MRI), psychosocial factors (e.g. depression, anxiety) and other musculoskeletal pain symptoms. Dimensionality reduction, cluster validation and fuzzy c-means clustering methods, classification models, and relevant sensitivity analyses, will classify non-specific LBP patients into sub-groups. This project represents a first personalised diagnostic approach to non-specific LBP, with potential for widespread uptake in clinical practice. This project will provide evidence to support clinical trials assessing specific treatments approaches for potential subgroups of patients with non-specific LBP. The classification tool may lead to better patient outcomes and reduction in economic costs.

Bibliometric analysis of the 100 most cited articles in nonspecific neck pain research: A STROBE-compliant study

The purpose of this study was to identify and analyze the top 100 cited articles in nonspecific neck pain (NSNP) research. A set of search terms was entered into the Web of Science database, and the articles with the highest citation counts in the field of NSNP were chosen. The top 100 articles were examined for total citation count, annual citations count, first author, year of publication, journal, study design, and country of origin. The citation count for the list final articles ranged from 181 to 2067, with an average of 291.9. The journal Spine contributed the most articles (25), followed by pain (16). Between 2001 and 2010, the most prolific years, 66 articles were published. In terms of country of origin, the majority of articles were from Australia (22). Vernon H., published the most cited article in the Journal of Manipulative & Physiological Therapeutics in 1991, reporting the first instrument developed to assess self-reported disability in patients with neck pain. The bibliographic analysis to identify the top 100 most cited articles related to NSNP acknowledges the field historical advances and provides insight into the types of articles that have provided these advances.

Risk factors for neck pain in college students: a systematic review and meta-analysis

BACKGROUND

During the COVID-19 epidemic, the prevalence of neck pain among college students has increased due to the shift from offline to online learning and increasing academic and employment pressures. Therefore, this systematic review aimed to identify the personal, occupational, and psychological factors associated with the development of neck pain to promote the development of preventive strategies and early intervention treatment.

METHODS

Seven electronic databases were searched from inception to December 2022 for cross-sectional studies, cohort studies, case----control studies, and randomized controlled trials (RCTs) on neck pain. The quality of the selected studies were assessed by American Agency for Healthcare Research and Quality (AHRQ) or the Newcastle-Ottawa Scale (NOS). Pooled odds ratios (ORs) with corresponding 95% confidence intervals (CIs) were calculated to evaluate the effects of the included risk factors on neck pain.

RESULTS

Thirty studies were included, including 18,395 participants. And a total of 33 potentially associated risk factors were identified. Ultimately, 11 risk factors were included in the meta-analysis after assessing, and all results were statistically significant (P < 0.05). The factors supported by strong evidence mainly include the improper use of the pillow (OR = 2.20, 95% CI: 1.39 to 3.48), lack of exercise (OR = 1.88, 95% CI: 1.53 to 2.30), improper sitting posture (OR = 1.97, 95% CI: 1.39 to 2.78), history of neck and shoulder trauma (OR = 2.32, 95% CI: 1.79 to 3.01), senior grade (OR = 2.86, 95% CI: 2.07 to 3.95), staying up late (OR = 1.80, 95% CI: 1.35 to 2.41), long-time electronic product usage daily (OR = 1.53, 95% CI: 1.33 to 1.76), long-time to bow head (OR = 2.04, 95% CI: 1.58 to 2.64), and emotional problems (OR = 2.09; 95% CI: 1.66  to 2.63). Risk factors supported by moderate evidence were high stress (OR = 1.61, 95% CI: 1.02 to 2.52) and female gender (OR = 1.69, 95% CI: 1.52 to 1.87).

CONCLUSION

This study obtained 11 main risk factors affecting college students neck pain, including improper use of the pillow, lack of exercise, improper sitting posture, history of neck and shoulder trauma, senior grade, staying up late, long-term electronic product usage daily, long time to bow head, high stress, emotional problems and female gender.

Effects of a back school-based intervention on non-specific low back pain in adults: a randomized controlled trial

BACKGROUND

Non-specific low back pain is a common condition with significant global prevalence and socio-economic impact. Back School programs, which combine exercise and educational interventions, have been used to address back pain. This study aimed to investigate the effects of a Back School-based intervention on non-specific low back pain in adults. Secondary objectives included evaluating the impact of the program on disability, quality of life, and kinesiophobia.

METHODS

A randomized controlled trial was conducted involving 40 participants with non-specific low back pain, who were divided into two groups. The experimental group underwent an 8-week Back School-based program. The program comprised 14 practical sessions focusing on strengthening and flexibility exercises, along with two theoretical sessions covering anatomy and concepts related to a healthy lifestyle. The control group maintained their usual lifestyle. Assessment instruments included the Visual Analogue Scale, Roland Morris disability questionnaire, Short-Form Health Survey-36, and Tampa Scale of Kinesiophobia.

RESULTS

The experimental group showed significant improvements in the Visual Analogue Scale, Roland Morris disability questionnaire, physical components of the Short-Form Health Survey-36, and Tampa Scale of Kinesiophobia. However, there were no significant improvements in the psychosocial components of the Short-Form Health Survey-36. In contrast, the control group did not show significant results in any of the study variables.

CONCLUSIONS

The Back School-based program has positive effects on pain, low back disability, physical components of quality of life, and kinesiophobia in adults with non-specific low back pain. However, it does not appear to improve the participants' psychosocial components of quality of life. Healthcare professionals can consider implementing this program to help reduce the significant socio-economic impact of non-specific low back pain worldwide.

TRIAL REGISTRATION

NCT05391165 (registered prospectively in ClinicalTrials.gov: 25/05/2022).

A prognostic risk score for development and spread of chronic pain

Chronic pain is a complex condition influenced by a combination of biological, psychological and social factors. Using data from the UK Biobank (n = 493,211), we showed that pain spreads from proximal to distal sites and developed a biopsychosocial model that predicted the number of coexisting pain sites. This data-driven model was used to identify a risk score that classified various chronic pain conditions (area under the curve (AUC) 0.70-0.88) and pain-related medical conditions (AUC 0.67-0.86). In longitudinal analyses, the risk score predicted the development of widespread chronic pain, the spreading of chronic pain across body sites and high-impact pain about 9 years later (AUC 0.68-0.78). Key risk factors included sleeplessness, feeling 'fed-up', tiredness, stressful life events and a body mass index >30. A simplified version of this score, named the risk of pain spreading, obtained similar predictive performance based on six simple questions with binarized answers. The risk of pain spreading was then validated in the Northern Finland Birth Cohort (n = 5,525) and the PREVENT-AD cohort (n = 178), obtaining comparable predictive performance. Our findings show that chronic pain conditions can be predicted from a common set of biopsychosocial factors, which can aid in tailoring research protocols, optimizing patient randomization in clinical trials and improving pain management.

Locomotion behavior of chronic Non-Specific Low Back Pain (cNSLBP) participants while walking through apertures

BACKGROUND

Chronic Non-Specific Low Back Pain (cNSLBP) has been identified as one of the leading global causes of disability and is characterized by symptoms without clear patho-anatomical origin. The majority of clinical trials assess cNSLBP using scales or questionnaires, reporting an influence of cognitive, emotional and behavioral factors. However, few studies have explored the effect of chronic pain in daily life tasks such as walking and avoiding obstacles, which involves perceptual-motor processes to interact with the environment.

RESEARCH QUESTION

Are action strategies in a horizontal aperture crossing paradigm affected by cNSLBP and which factors influence these decisions ?

METHODS

15 asymptomatic adults (AA) and 15 cNSLBP participants walked along a 14 m long path, crossing through apertures ranging from 0.9 to 1.8 times their shoulder width. Their movement was measured using the Qualisys system, and pain perception was evaluated by self-administered questionnaires.

RESULTS

The cNSLBP participants stopped rotating their shoulders for a smaller aperture relative to their shoulder width (1.18) than the AA participants (1.33). In addition, these participants walked slower, which gave them more time to make the movement adaptations necessary to cross the aperture. No correlation was found between the variables related to pain perception and the critical point but the levels of pain were low with a small variability.

SIGNIFICANCE

This study shows that during a horizontal aperture crossing task requiring shoulder rotation to pass through small apertures, cNSLBP participants appear to exhibit a riskier adaptive strategy than AA participants by minimizing rotations that could induce pain. This task thus makes it possible to discriminate between cNSLBP participants and pain-free participants without measuring the level of pain. The identification number registered in the clinical trials is NCT05337995.

Do lifestyle factors influence pain prognosis? A 1-year follow-up study

Objective

The aim of this observational longitudinal study was to investigate the impact of lifestyle factors on the prognosis of patients with pain.

Methods

This study was part of a large prospective longitudinal study conducted in general practice (GP). Participants completed questionnaires at baseline (T0) and one year later (T1). Outcomes analysed were the EQ-5D index, presence of pain and the ability to perform a light work for 1 hour without difficulty.

Results

Among 377 individuals with pain at T0, 294 still reported pain at T1. This subgroup had a significantly higher BMI, more painful sites, higher pain intensity, more sleep problems, poorer general self-rated health (GSRH) and higher Örebro Musculoskeletal Pain Screening Questionnaire (ÖMPSQ) score at T0 than pain-free individuals at T1. There were no differences in age, sex, physical activity and smoking. In multivariable analyses, the number of painful sites, GSRH, sleep problems, pain duration, pain intensity and 2 short-form 10-item Örebro musculoskeletal pain questionnaire (SF-ÖMPSQ) items were independently associated with at least one outcome 1 year later. Only GSRH was strongly associated with all outcomes. The accuracy of GSRH at T0 to classify participants according to dichotomous outcomes was overall moderate (0.7 < AUC <0.8).

Conclusions

Lifestyle factors appear to have little influence on the outcome of patients with pain in GP. Conversely, poorer GSRH - which probably integrates the subjects' perception of several factors - could be considered a negative prognostic factor in patients with pain.

How Do Physiotherapists Explain Influencing Factors to Chronic Low Back Pain? A Qualitative Study Using a Fictive Case of Chronic Non-Specific Low Back Pain

BACKGROUND

While pain is influenced by multiple factors including psychosocial factors, previous research has shown that physiotherapists still favour a biomedical approach.

PURPOSE

To evaluate: (1) how physiotherapists explain the patient's chronic non-specific low back pain (LBP); (2) whether physiotherapists use one or multiple influencing factors, and (3) whether these factors are framed in a biopsychosocial or biomedical approach.

MATERIALS AND METHODS

This exploratory qualitative study uses a vignette depicting chronic non-specific LBP and employs a flexible framework analysis. Physiotherapists were asked to mention contributing factors to the pain based on this vignette. Five themes were predefined ("Beliefs", "Previous experiences", "Emotions", "Patients behaviour", "Contextual factors") and explored.

RESULTS

Physiotherapists use very brief explanations when reporting contributing factors to chronic pain (median 13 words). Out of 670 physiotherapists, only 40% mentioned more than two different themes and 2/3rds did not see any link between the patients' misbeliefs and pain. Only a quarter of the participants mentioned the patient's worries about pain and movement, which is considered to be an important influencing factor.

CONCLUSION

The lack of a multifactorial approach and the persistent biomedical beliefs suggest that it remains a challenge for physiotherapists to fully integrate the biopsychosocial framework into their management of chronic LBP.

Musculoskeletal pain among desk-based officials of Bangladesh: Association with mental health and individual factors

Musculoskeletal (MS) pain is widely prevalent and is an important health issue for desk-based employees which has a negative impact on both personal and work life. This study aimed to determine the MS pain status and its association with mental health and other individual factors among desk-based officials of Dhaka, Bangladesh. This cross-sectional study comprised a sample of 526 desk-based officials from Dhaka, Bangladesh. Data were collected between November 2020 to March 2021. MS pain was determined by the visual analog scale (VAS) and depression and anxiety were screened by Hospital Anxiety and Depression Scale (HADS). Logistic regression analyses were employed to estimate the adjusted effect of independent factors on MS pain. The overall prevalence of MS pain was 64% among desk-based officials. The corresponding prevalence were 19% severe, 21% moderate and 24% mild MS pain. In the adjusted model, gender (AOR: 0.19, 95% CI: 0.07-0.46), BMI (AOR: 0.28, 95% CI: 0.14-0.59), monthly income (AOR: 5.17, 95% CI: 2.18-12.25), organization type (AOR: 4.3, 95% CI:1.8-10.1), floor living (AOR: 4.7, 95% CI:2.1-10.8), physical activity (AOR: 0.16, 95% CI: 0.06-0.45), and lift facility in the house (AOR: 4.11, 95% CI: 2.06-8.23) were associated with MS pain. In addition, the prevalence of anxiety and depression was 17.7% and 16.4%, respectively. Depression was identified as a significant predictor for severe MS pain (AOR: 2.44, 95%CI:1.29-4.63). This study has revealed a relatively high prevalence of MS pain and mental health problems among Bangladeshi desk-based officials. Preventive measures need to be taken from both organizational and personal sides to delimitate MS pain and mental health problems.

Effects of back school-based intervention on non-specific neck pain in adults: a randomized controlled trial

BACKGROUND

Neck pain has a high prevalence and socioeconomic impact worldwide. The Back School consists of programs that include exercises and educational interventions to treat back pain. Accordingly, the main objective was to evaluate the effects of an intervention based on Back School on non-specific neck pain in an adult population. The secondary objectives were to analyze the effects on disability, quality of life and kinesiophobia.

METHODS

A randomized controlled trial was conducted with 58 participants with non-specific neck pain divided into two groups. The experimental group (EG) carried out the 8-week programme based on the Back School, (two sessions per week, for a total of 16 sessions, lasting 45 min). Of all the classes, 14 had a practical focus (strengthening and flexibility exercises) and the other two had a theoretical focus (concepts of anatomy and healthy lifestyle). The control group (CG) stated that they did not vary their lifestyle. The assessment instruments were: Visual Analogue Scale, Neck Disability Index, Short-Form Health Survey-36 and Tampa Scale of Kinesiophobia.

RESULTS

The EG reduced pain (-40 points, CI95% [-42 to -37], g = -1.03, p < 0.001), EG had less disability (-9.3 points, CI95% [-10.8 to -7.8], g = -1.22, p < 0.001), EG improved the physical dimension of the survey Short-Form Health Survey-36 (4.8 points, CI95% [4.1 to 5.5], g = 0.55, p = 0.01) but had not significant change in psychosocial dimension of the survey Short-Form Health Survey-36 and EG reduced Kinesiophobia (-10.8 points, CI95% [-12.3 to -9.3], g = -1.84, p < 0.001). The CG did not obtain significant results in any variable of the study. Significant differences in change between both groups were found on pain (-11 points, CI95% [5.6 to 16.6], p < 0.001, g = 1.04), disability (-4 points, CI95% [2.5 to 6.2], p < 0.001, g = 1.23), physical dimension of the survey Short-Form Health Survey-36 (3 points, CI95% [-4-4 to -2-5], p = 0.01, g = -1.88), and kinesiophobia ( 7 points, CI95%[-8.3 to -5.4], p < 0.001, g = 2.04), while no significant differences were found on psychosocial dimension of the survey Short-Form Health Survey-36 (-0.02, CI95% [-1.7 to 1.8], g = 0.01, p = 0.98).

CONCLUSIONS

The back school-based programme has beneficial effects on pain, neck disability, the physical dimension of quality of life and kinesiophobia in an adult population with non-specific neck pain. However, it did not lead to improvements in the psychosocial dimension of the participants' quality of life. This programme could be applied by health care providers with the aim of reducing the severe socio-economic impact of non-specific neck pain worldwide. TRIAL REGISTRATION IN CLINICALTRIALS.GOV: NCT05244876 (registered prospectively, date of registration: 17/02/2022).

The Mediation Effect of Pain on the Relationship between Kinesiophobia and Lumbar Joint Position Sense in Chronic Low Back Pain Individuals: A Cross-Sectional Study

(1) Background: Fear of movement (kinesiophobia) and impaired lumbar joint position sense (LJPS) play a vital role in developing and maintaining non-specific chronic low back pain (CLBP). However, how kinesiophobia impacts LJPS is still being determined. The aims of this study are to (1) assess the correlation between kinesiophobia and LJPS in individuals with chronic low back pain; (2) compare LJPS between individuals with CLBP and those who are asymptomatic; and (3) evaluate if pain can mediate the relationship between kinesiophobia and LJPS in CLBP individuals. (2) Methods: Eighty-three individuals (mean age = 48.9 ± 7.5 years) with a diagnosis of CLBP and 95 asymptomatic individuals (mean age = 49.4 ± 7.0 years) were recruited into this cross-sectional study. Fear of movement in CLBP individuals was assessed using the Tampa Scale for Kinesiophobia (TSK). LJPS was determined using the active target repositioning technique using a dual-digital inclinometer. LJPS was evaluated in lumbar flexion, extension, and side-bending left and right directions, and the repositioning accuracy was determined in degrees using a dual digital inclinometer. (3) Results: Kinesiophobia showed a significant (p < 0.001) moderate positive correlation with LJPS (flexion: r = 0.51, extension: r = 0.41, side-bending left: r = 0.37 and side-bending right: r = 0.34). LJPS errors were larger in CLBP individuals compared to asymptomatic individuals (p < 0.05). Mediation analyses showed that pain significantly mediated the relationship between kinesiophobia and LJPS (p < 0.05) in CLBP individuals. (4) Conclusions: Kinesiophobia and LJPS were positively associated. LJPS is impaired in CLBP individuals compared to asymptomatic individuals. Pain may mediate adverse effects on LJPS. These factors must be taken into account when assessing and developing treatment plans for those with CLBP.

Biological and psychological early prognostic factors in complex regional pain syndrome: A systematic review

BACKGROUND AND OBJECTIVE

Several risk factors for the onset of CRPS have been found, but evidence for prognostic factors associated with the progression of this condition remains sparse. However, the detection and management of these factors are necessary to design secondary prevention strategies. The objective of this systematic review was to identify prognostic factors in adult individuals with early CRPS.

DATABASE AND DATA TREATMENT

PubMed, Embase, PsycINFO, Cochrane Library and Scopus, were published between January 1990 and November 2021. Two independent investigators selected cross-sectional and longitudinal studies looking at early (<12 weeks from onset) prognostic factors for pain, CRPS severity score, disability, return to work, or quality of life. The quality in prognostic studies (QUIPS) tool was used to assess the risk of bias. A qualitative meta-synthesis was performed.

RESULTS

Out of 4652 different articles, six studies met the inclusion criteria. We identified 21 early factors associated with a poorer prognosis in type I CRPS. We found moderate evidence to support six of them: higher pain intensity, self-rated disability, anxiety, pain-related fear, being a female and high-energy triggering event. Only two studies had an overall low risk of bias.

CONCLUSIONS

This study showed an important lack of information on early prognostic factors in CRPS. Only one article investigated the link with psychological characteristics. There is a crucial need for larger studies, with a well-defined population using validated measures.

SIGNIFICANCE

This systematic review highlights the lack of knowledge about early prognostic factors in CRPS. A few putative prognostic factors were identified. Most of the moderate evidence is related to a single cohort. Future research is required to find out which patients are vulnerable to chronification.

Pain and Depression Account for More Than One Half of the Neck Disability Variance Among Adult Women with Chiari I

OBJECTIVE

We sought to quantify the neck-related disability in adult women with Chiari malformation type I and identify the significantly related variables.

METHODS

A total of 70 variables were selected from the self-report history questionnaires (12 variables; n = 474), standardized scales (15 variables; n = 474), and morphometric data (43 variables; n = 293-474) of adult women with Chiari malformation type I. The variables were tested independently to identify those with a significant relationship to the Neck Disability Index (NDI; P < 0.00071) and those that might be associated with the NDI (P < 0.05). A forward selection regression model was constructed to identify the variables contributing unique variance to the NDI. In addition, a mediation analysis was performed to determine whether depression mediated the relationship between pain and disability.

RESULTS

Overall, 79.5% of the patients had scored at a moderate level of disability or higher. Independent testing identified 16 significant variables, including symptom duration, tonsillar position, and measures of psychological distress. The short-form McGill pain questionnaire-2 (r = 0.69; P < 0.00001) and CES-D scale for depression (r = 0.56; P < 0.00001) exhibited the highest correlations with the NDI. The forward selection regression model produced an R2 of 0.6178. Pain and depression accounted for more than one half of the NDI variance.

CONCLUSIONS

We found that high levels of disability are common among adult women with Chiari malformation type I, independent of surgical status. Pain and depression were the primary factors related to this disability. Depression mediated the relationship between pain intensity and disability at a modest level (5%). Patients who had experienced symptoms for >2 years before diagnosis had had, on average, 77% higher NDI scores, highlighting the importance of a timely diagnosis.

Emotion regulation mediates the relationship between family caregivers' pain-related beliefs and patients' coping strategies

Background: In order to tailor more effective interventions and minimize the burden of chronic pain, it is critical to identify the interaction and contribution of social and psychological factors in pain. One of the important psychological factors in pain management is related to the choice of pain coping strategies in chronic pain patients. Social resources, including family caregivers' pain attitudes-beliefs, can influence pain coping strategies in chronic pain patients. Moreover, one key factor that may intervene in the relationship between caregivers' pain attitudes-beliefs and the patients' coping strategies is the emotion regulation strategies. Therefore, the present study aimed to investigate the mediating role of emotion regulation strategies of chronic pain patients and their family caregivers on the association between caregivers' pain attitudes-beliefs and pain coping strategies of chronic pain patients. Methods: We recruited 200 chronic musculoskeletal pain patients and their family caregivers. Chronic pain patients responded to measures of pain coping and emotion regulation strategies while family caregivers completed questionnaires related to their attitude toward pain and emotion regulation of themselves. Results: There is an association between caregivers' pain attitudes-beliefs and pain coping strategies in patients with chronic musculoskeletal. Moreover, the structural equation modeling revealed that the emotion regulation of both patients and family caregivers mediate the relationship between the caregivers' pain attitudes-beliefs and pain coping strategies of patients with chronic musculoskeletal. Conclusions: The social context of pain, including the effect of family caregivers' responses to the patient's pain, is a critical pain source that is suggested to affect coping strategies in patients. These findings suggest an association between pain attitudes-beliefs in family caregivers and pain coping strategies in patients. Moreover, these results showed that the emotion regulation of both patients and their family caregivers mediates this association.

The impact of physical and psychological pain management training on pain intensity, anxiety and disability in patients undergoing lumbar surgeries

BACKGROUND/CONTEXT

Lumbar surgery is one of the interventions performed for patients with degenerative conditions.

PURPOSE

This study aimed to investigate the effect of pain management education on pain intensity, anxiety, and disability after the lumbar surgery.

STUDY DESIGN/SETTING

This randomized controlled trial was performed on seventy 30 to 65-year-old patients with lumbar canal stenosis and lumbar disc herniation from 2018 to 2019.

PATIENT SAMPLE

Seventy participants were randomly divided into a control and an intervention group by a randomized block design. Participants in the intervention group received in-person pain management training twice a week for seven 60 to 90-minute sessions.

OUTCOME MEASURES

All participants in the two groups completed the study instruments (numeric rating scale [NRS], Oswestery disability index [ODI], and pain anxiety symptoms scale [PASS]) before, immediately after, and 3 months after the study.

METHODS

Participants in the intervention group received in-person pain management training twice a week for seven 60 to 90-minute sessions. To analyze the treatment effects, repeated-measures multivariate analysis of variance (MANOVA) and effect sizes were used where appropriate and calculated by Partial ɳ². Clinical outcome (MDC) for pain intensity and PASS was also reported. For participants lost to follow-up, we also used an "intention-to-treat" (ITT) approach.

RESULTS

The results of MANOVA indicated that there were significant differences between the two groups on ratings of pain intensity, anxiety, and disability. According to the MDC, the mean differences of pain intensity for the intervention group was also clinically improved. Meanwhile, the mean differences in pain anxiety between three different times in the two groups were not above the MDC (20.14), suggesting that the clinical improvements were not significant. The results were confirmed for all outcome measures; a statistically significant difference was found between the groups in ITT analyses (p<.001).

CONCLUSIONS

Physical and psychological pain management education was shown to be effective in decreasing pain intensity, anxiety, and disability. This strategy may be beneficial for such patients. Variables such as smoking behavior, past history of psychological disorders, and previous surgeries should be considered in future studies.

Musculoskeletal Pain in the Neck and Lower Back Regions among PHC Workers: Association between Workload, Mental Disorders, and Strategies to Manage Pain

Scientific evidence indicates that workers in the health sector are commonly exposed to work-related musculoskeletal pain.

OBJECTIVES

We aimed to identify the relationship between the presence and intensity of musculoskeletal pain in the neck and lumbar regions reported by Primary Health Care (PHC) workers with workloads and occupational risks, analyze musculoskeletal pain in the presence and absence of self-reported mental disorders based on a medical diagnosis, and identify workers' strategies to manage pain.

METHOD

This cross-sectional study addressed 338 health professionals working in PHC outpatient services in the extreme South of Brazil. One questionnaire addressed sociodemographic questions concerning occupation, occupational risks, and mental disorders. The Nordic Musculoskeletal Questionnaire was used to assess self-reported musculoskeletal pain. The National Aeronautics and Space Administration Task Load Index (NASA-TLX) measured the workload. A descriptive and inferential analysis was performed using SPSS version 21.0.

RESULTS

Most (55.3%) participants reported neck and (64.5%) lower back pain in the previous 12 months, and 22.5% and 30.5% reported intense neck and lower back pain, respectively, in the previous 12 months. The results showed different independent associations with increased musculoskeletal pain among health workers. Dentists presented the highest prevalence of neck pain, while female workers presented the highest prevalence of lower back pain. Furthermore, the perception of ergonomic risk and virtually all self-reported mental disorders (except panic syndrome for neck pain) were associated with pain in the neck and lower back regions and a higher frustration level (mental demand). Additionally, professionals with graduate degrees, nurses, and professionals working the longest in PHC services reported seeking complementary therapies more frequently, while physicians and those with self-reported mental disorders self-medicated more frequently.

Investigating the Relationship between Empowerment and Chronic Pain Acceptance and the Resulting Limitations in the Elderly with Diabetes living Southwest of Iran

BACKGROUND AIM

Considering the importance of pain acceptance in adjusting to chronic pain among diabetic patients, this study was conducted to determine the relationship between the empowerment scale and the level of chronic pain acceptance among the elderly with diabetes and the resulting limitations.

METHOD

This is a descriptive-analytical study on 250 older patients (65 years and older) with diabetes. The samples were selected through random convenience sampling, performed during 2019 to 2020 in the health centers of Ahvaz, Iran. The data were collected using the demographic information checklist and standard questionnaires including chronic pain acceptance questionnaire (CPAQ), the scale of chronic pain-related limitations, and the diabetes empowerment scale-short form (DES-SF). The data were analyzed using SPSS V24.

RESULTS

The majority of the samples were male (56%) and the mean age of the participants was 70.96 ± 8.95 years. The results showed that the mean and standard deviation were reported to be 20.04 ± 4.63 for pain acceptance, 46.16 ± 10.85 for chronic pain-related limitations, and 27.24 ± 9.65 for the empowerment scale. According to regression coefficients, the mean score of empowerments of patients with diabetes has no significant relationship with pain acceptance (p = .199, b = -0.327) and pain-related limitations (p = .925, b = 0.004).

CONCLUSIONS

Based on the results of this study, the level of empowerment, pain acceptance, and pain-related limitations in the older patients with diabetes was moderate and there was no significant relationship between them. Identifying vulnerable groups in the field of chronic pain and preventive, educational and therapeutic interventions will help increase patients' self-care capacity and reduce the limitations and the disability caused by pain.

A Survey of Neck Pain among Dentists of the Lebanese Community

Results

The majority of participants were between the ages of 25 and 35, and the gender distribution of the demographic distribution was comparable. The prevalence of pain was 86.8% (97/342 dentists). NDI analysis showed that 65.7% had mild disability, 12.8% have a moderate disability, and 1% had severe disability. Bivariate analysis showed that pain was affected by age (p=0.013), orthodontist practices (p=0.031), regular exercise (p < 0.001), using vibrating instruments (p < 0.001), cervical flexion for better vision while working (p < 0.001), knowledge, and experience about ergonomic posture (p < 0.005). Multivariate analysis showed four predictors for pain: age (p=0.017), performing stretching exercises after finishing clinical practice (p=0.022), orthodontist specialty (p=0.029), and performing cervical flexion for better vision while working (p=0.004).

Conclusion

This study showed that through the application of some strategies such as stretching, exercising, and being careful in using vibrating instruments, the dentist may be able to relieve the pain.

Cortical function and sensorimotor plasticity are prognostic factors associated with future low back pain after an acute episode: the Understanding persistent Pain Where it ResiDes prospective cohort study

ABSTRACT

Predicting the development of chronic low back pain (LBP) at the time of an acute episode remains challenging. The Understanding persistent Pain Where it ResiDes study aimed to identify neurobiological and psychological risk factors for chronic LBP. Individuals with acute LBP (N = 120) participated in a prospective cohort study with 6-month follow-up. Candidate predictors were selected from the neurobiological (eg, sensorimotor cortical excitability assessed by sensory and motor-evoked potentials and brain-derived neurotrophic factor genotype), psychological (eg, depression and anxiety), symptom-related (eg, LBP history), and demographic domains. Analyses involved multivariable linear regression models with pain intensity or disability degree as continuous variables. Secondary analyses involved a multivariable logistic model with the presence of LBP at 6 months (thresholding pain intensity and disability degree) as a dichotomous variable. Lower sensory cortex and corticomotor excitability, higher baseline pain intensity, higher depression, stress, and pain catastrophizing were the strongest predictors ( R2 = 0.47) of pain intensity at 6 months. Older age and higher pain catastrophizing were the strongest predictors ( R2 = 0.30) of disability at 6 months. When the LBP outcome was dichotomised, sensory cortex and corticomotor excitability, brain-derived neurotrophic factor genotype, depression and anxiety, LBP history and baseline pain intensity, discriminated between those who did and did not report LBP at 6 months (C-statistic 0.91). This study identifies novel risk factors for the development of future LBP. Neurobiological risk factors, when added to a multivariable linear regression model, explained a further 15% of the variance in the 6-month pain intensity.

Psychosocial risk factors for low back pain in US workers: Data from the 2002-2018 quality of work life survey

BACKGROUND

Examining workplace psychosocial risk factors for back pain becomes increasingly important because of the changing nature of work and rising healthcare costs. Some psychosocial risk factors for back pain, such as work and family imbalance, exposure to a hostile work environment, and job insecurity, are understudied for the working population in the United States.

METHODS

Data used in this study came from the Quality of Work Life Survey (QWL), a supplementary module of the General Social Survey conducted in the United States. Data from the 2002, 2006, 2010, 2014, and 2018 QWL surveys were used in these analyses, giving a total sample size of 6661. Five domains of workplace psychosocial risk factors for back pain were examined, including job strain, low social support, work-family imbalance, exposure to a hostile work environment (harassment and discrimination), and job insecurity. The adjusted odds ratio (aOR) of each psychosocial risk factor for back pain with 95% confidence intervals (CI) was estimated using a multivariable logistic regression model after controlling for job physical factors, occupation, and demographic and socioeconomic characteristics.

RESULTS

Significant associations were found between back pain and several psychosocial factors including job strain (aOR 1.19; CI 1.00,1.41), work-family imbalance (aOR,1.42; CI 1.22,1.64), harassment (aOR 1.40; CI 1.15,1.71), and discrimination (aOR 1.20 CI 1.00,1.44).

CONCLUSION

This study contributes to the understanding of the relationship between a variety of workplace psychosocial factors and back pain. Our findings suggest directions in future longitudinal research to examine emerging workplace psychosocial factors for back pain.

Disability and return to work after a multidisciplinary intervention for (sub)acute low back pain: A systematic review

Objective

This systematic review aimed to examine pain, functional status and return to work after a multidisciplinary intervention, with or without additional workplace intervention, for (sub)acute low back pain among adults.

Data sources

A comprehensive search was completed (November 2022) in six electronic databases (Embase, MEDLINE, Web of Science, Cochrane, CENTRAL and Scopus) and in the reference list of all identified studies.

Review methods

The search results were screened against predefined eligibility criteria by two independent researchers. Included articles were systematic reviews or randomized controlled trials examining the effect of a multidisciplinary intervention, with or without workplace intervention, in working adults with (sub)acute low back pain. Relevant information was summarized and clustered, and the methodological quality and certainty of evidence were assessed respectively using the RoB 2-tool, the ROBIS tool and the GRADE criteria.

Results

The search resulted in a total of 3020 articles. After the screening process, 12 studies remained (11 randomized controlled trials and 1 systematic review), which studied overall 2751 patients, with a follow-up period of at least 12 months.

Conclusions

A multidisciplinary intervention is favorable compared to usual care for pain intensity and functional status but this is less clear for return to work. Comparable work-related effects were found when comparing a multidisciplinary intervention with a less extensive intervention, whereas uncertainties exist regarding outcomes of pain intensity and functional status. Furthermore, adding a workplace intervention to usual care and subdividing patients based on work-related characteristics seems beneficial for return to work.

Pain trends and pain growth disparities, 2009-2021

Physical pain is a major public health concern. Yet evidence on trends in physical pain around the world barely exists. Using nationally representative data from 146 countries (N = 1.6 million respondents), this paper finds that, all over the world, the percentage of people in pain increased from 26.3 in 2009 to 32.1 in 2021. This rising trend was present in both higher- and lower-income countries. This article also documents pain disparities: In the worldwide population, pain grew faster among women, the less educated, and the poor. Although the aggregate level of pain was greater among the elderly (> 60 years old), the growth in pain was faster among the younger (< 35 years old). These findings hold after controlling for sociodemographic factors. Disparities of pain growth in higher- and lower-income nations and potential explanatory factors are also discussed. Understanding how the level of pain varies over time and across demographic groups is crucial to evaluate and shape public health policies.

Is the combination of exercise therapy and health education more effective than usual medical care in the prevention of non-specific back pain? A systematic review with meta-analysis

BACKGROUND

Clinical practice guidelines emphasize the importance of the prevention and treatment of non-specific back pain through exercise therapy and health education. However, it has not yet been confirmed that the combination of exercise plus education is more effective than usual medical care.

OBJECTIVE

The aim of this study was to determine if the combination of exercise plus education is more effective for the prevention of non-specific back pain than usual medical care.

MATERIALS AND METHODS

A systematic search in PubMed, Scopus, Web of Science and Medline was conducted with the terms Back Pain, Neck Pain, Musculoskeletal Pain, Exercise, Exercise Therapy, Health Education, Cognitive Behavioral Therapy, Primary Prevention, Secondary Prevention and Clinical Trial. The inclusion criteria were: articles published from 2016 to 2021, the intervention included exercise and education, and the sample consisted of non-specific back pain patients.

RESULTS

A total of 4 randomized controlled trials were selected (average PEDro score 6.5 points). The meta-analysis showed statistically significant differences in the pain intensity, standardized mean differences was found to be -0.75 (95% CI = -1.41 to -0.08; p = 0.03); and in disability, standardized mean differences was found to be -0.24 (95% CI = -0.38 to -0.1; p = 0.001).

CONCLUSIONS

Interventions combining exercise and education seem to have a greater preventive effect on non-specific back pain than usual medical care.Key messagesExercise therapy and health education combination prevent better non-specific back pain than usual care.Combining exercise with educational interventions has a higher improvement on disability and kinesophobia than usual care.

Perceived psychosocial stressors and coping resources in chronic low back pain patients as classified by the avoidance-endurance model

Objectives

The Avoidance-Endurance Model distinguishes between subgroups of low back pain (LBP) patients with three maladaptive styles of coping with pain: fear-avoidance (FAR), distress-endurance (DER), eustress-endurance (EER), and one adaptive coping style (AR). This study aimed to compare the quantity of patients' perceived psychosocial stressors and coping resources across these subgroups.

Materials and methods

This cross-sectional study was conducted at an outpatient rehabilitation center for patients with chronic musculoskeletal pain. One hundred and thirty-seven patients (69 women/68 men) with chronic LBP were assessed using the following: a demographic checklist, the visual analogue scale, Avoidance-Endurance Questionnaire, Roland-Morris Disability Questionnaire, Pain Disability Index, and 36-Item Short Form. Subsequently, patients participated in semi-structured interviews led by clinical psychologists, which were intended to identify their perception of stressors and coping resources. The quantity of psychosocial stressors and coping resources were analyzed using deductive and inductive content analyses and then compared between subgroups using chi-square-tests.

Results

FARs experienced significantly higher levels of “mental suffering” (p = &lt;0.001) and “other workplace problems” compared to ARs and EERs (p = &lt;0.001). DERs reported significantly higher levels of “mental suffering” (p = &lt;0.001), “job stress” (p = 0.022), and “familial losses” (p = 0.029) compared to ARs, whereas the AR group demonstrated significantly more “coping resources” (p = 0.001) compared to FARs.

Conclusion

AEM-subgroups differed in the quantity of perceived psychosocial stressors and coping resources with AR, who demonstrated a lower risk for pain chronicity and reported the highest quantity of resources. The variability across subgroups may imply differences in patientś needs regarding therapeutic interventions and suggests that a resource-centered approach to cope with stress and pain may be beneficial.