Comorbid painful physical symptoms and anxiety: prevalence, work loss and help-seeking

The impact of comorbid spinal pain in depression on work participation and clinical remission following brief or short psychotherapy. Secondary analysis of a randomized controlled trial with two-year follow-up

Objectives

This explorative study analyses the influence of baseline comorbid long-lasting spinal pain (CSP) on improvement of long term work participation and clinical remission of mental health illness following either brief coping-focussed or short-term psychotherapy for depression. Whether type of treatment modifies outcome with or without CSP is also analysed.

Design

A secondary post hoc subgroup analysis of a pragmatic randomised controlled trial.

Interventions

Brief or standard short psychotherapy.

Methods

Based on baseline assessment, the sample was subdivided into a subgroup with and a subgroup without CSP. Work participation and clinical remission of depression and anxiety were assessed as treatment outcome at two-year follow-up. Simple and multivariate logistic regression analyses, across the intervention arms, were applied to evaluate the impact of CSP on treatment outcome. Selected baseline variables were considered as potential confounders and included as variates if relevant. The modifying effect of CSP on treatment outcome was evaluated by including intervention modality as an interaction term.

Main results

Among the 236 participants with depressive symptoms, 83 participants (35%) were identified with CSP. In simple logistic regression analysis, CSP reduced improvements on both work participation and clinical remission rate. In the multivariate analysis however, the impact of CSP on work participation and on clinical remission were not significant after adjusting for confounding variables. Reduction of work participation was mainly explained by the higher age of the CSP participants and the reduced clinical remission by the additional co-occurrence of anxiety symptoms at baseline. The occurrence of CSP at baseline did not modify long term outcome of brief compared to short psychotherapy.

Conclusions

CSP at baseline reduced work participation and worsened remission of mental health symptoms two-year following psychotherapy. Older age and more severe baseline anxiety are associated to reduced effectiveness. Type of psychotherapy received did not contribute to differences.

Clinical and cost-effectiveness of a guided internet-based Acceptance and Commitment Therapy to improve chronic pain-related disability in green professions (PACT-A): study protocol of a pragmatic randomised controlled trial

INTRODUCTION

Chronic pain is highly prevalent, associated with substantial personal and economic burdens, and increased risk for mental disorders. Individuals in green professions (agriculturists, horticulturists, foresters) show increased prevalence of chronic pain and other risk factors for mental disorders. Available healthcare services in rural areas are limited. Acceptance towards face-to-face therapy is low. Internet and mobile-based interventions (IMIs) based on Acceptance and Commitment Therapy (ACT) might be a promising alternative for this population and may enable effective treatment of chronic pain. The present study aims to evaluate the clinical and cost-effectiveness of an ACT-based IMI for chronic pain in green professions in comparison with enhanced treatment as usual (TAU+).

METHODS AND ANALYSIS

A two-armed pragmatic randomised controlled trial will be conducted. Two hundred eighty-six participants will be randomised and allocated to either an intervention or TAU+ group. Entrepreneurs in green professions, collaborating spouses, family members and pensioners with chronic pain are eligible for inclusion. The intervention group receives an internet-based intervention based on ACT (7 modules, over 7 weeks) guided by a trained e-coach to support adherence (eg, by positive reinforcement). Primary outcome is pain interference (Multidimensional Pain Interference scale; MPI) at 9 weeks post-randomisation. Secondary outcomes are depression severity (Quick Inventory Depressive Symptomology; QIDS-SR16), incidence of major depressive disorder, quality of life (Assessment of Quality of Life; AQoL-8D) and possible side effects associated with the treatment (Inventory for the Assessment of Negative Effects of Psychotherapy; INEP). Psychological flexibility (Chronic Pain Acceptance Questionnaire, Committed Action Questionnaire, Cognitive Fusion Questionnaire) will be evaluated as a potential mediator of the treatment effect. Furthermore, mediation, moderation and health-economic analyses from a societal perspective will be performed. Outcomes will be measured using online self-report questionnaires at baseline, 9-week, 6-month, 12-month, 24-month and 36-month follow-ups.

ETHICS AND DISSEMINATION

This study was approved by the Ethics Committee of the University of Ulm, Germany (file no. 453/17-FSt/Sta; 22 February 2018). Results will be submitted for publication in peer-reviewed journals and presented at conferences.

TRIAL REGISTRATION NUMBER

German Clinical Trial Registration: DRKS00014619. Registered on 16 April 2018.

Connectivity between the anterior insula and dorsolateral prefrontal cortex links early symptom improvement to treatment response

BACKGROUND

Early improvement (EI) following treatment with antidepressants is a widely reported predictor to the treatment response. This study aimed to identify the resting-state functional connectivity (rs-FC) and its related clinical features that link the treatment response at the time of EI.

METHODS

This study included 23 first-episode treatment-naive patients with MDD. After 2 weeks of antidepressant treatment, these patients received 3.0 Tesla resting-state functional magnetic resonance imaging scanning and were subgrouped into an EI group (N = 13) and a non-EI group (N = 10). Using the anterior insula (rAI) as a seed region, this study identified the rs-FC that were associated with both EI and the treatment response at week 12, and further tested the associations of the identified rs-FC with either the clinical features or the early symptom improvement.

RESULTS

Rs-FC between rAI and the left dorsolateral prefrontal cortex (dlPFC) was associated with EI (t₂₁ = -6.091, p = 0.022 after FDR correction for multiple comparisons). This rs-FC was also associated with an interaction between EI and the treatment response at the week 12 (t₂₁ = -5.361, p = 6.37e-5). Moreover, among the clinical features, this rs-FC was associated with the early symptom improvement in the insomnia, somatic symptoms, and anxiety symptoms, and these early symptom improvements were associated with the treatment response.

CONCLUSION

Rs-FC between the rAI and the left dlPFC played a crucial role in the early antidepressant effect, which linked the treatment response. The early treatment effect relating to rAI may represent an early symptom improvement in self-perceptual anxiety, somatic symptoms and insomnia.

When it hurts even more: The neural dynamics of pain and interpersonal emotions

OBJECTIVE

Chronic pain is highly prevalent among patients with mood, anxiety, personality, and somatic symptom disorders; and patients with chronic pain often suffer from persistent interpersonal distress. However, the neural mechanisms underlying this phenomenon and its possible role in the etiology of chronic pain are not yet understood. Based on our Developmental Theory of Centralized/Somatoform Pain, and prior research suggesting the existence of a shared neural system subserving interpersonal emotions and pain, we aimed to identify the neural basis for modulation of pain by feelings of interpersonal rejection and the role of the early interpersonal environment in development of this shared neural system.

METHODS

During fMRI scanning, 22 healthy participants received moderately painful thermal stimuli in 3 interpersonal contexts: Acceptance, Rejection, and Reacceptance (modified Cyberball paradigm). Early interpersonal environment was assessed using the Parental Bonding Instrument.

RESULTS

Interpersonal context modulated activity in pain neural systems during rejection and during accepting interactions with previously rejecting others. Moreover, the subjective perception of rejection, even when rejection was not occurring, correlated positively with reported pain severity and neural activity in the insula. The magnitude of neural modulation in pain circuits by feelings of rejection was associated with the quality of early interpersonal experience with caregivers.

CONCLUSIONS

Results suggest that interpersonal emotions play an important role in the development and functioning of the pain system, supporting our Developmental Theory of predisposition to chronic centralized pain. These findings have direct implications for clinical practice, including the importance of treating interpersonal distress to alleviate pain.

Factors associated with health service utilisation for common mental disorders: a systematic review

BACKGROUND

There is a large treatment gap for common mental disorders (CMD), with wide variation by world region. This review identifies factors associated with formal health service utilisation for CMD in the general adult population, and compares evidence from high-income countries (HIC) with that from low-and-middle-income countries (LMIC).

METHODS

We searched MEDLINE, PsycINFO, EMBASE and Scopus in May 2016. Eligibility criteria were: published in English, in peer-reviewed journals; using population-based samples; employing standardised CMD measures; measuring use of formal health services for mental health reasons by people with CMD; testing the association between this outcome and any other factor(s). Risk of bias was assessed using the adapted Mixed Methods Appraisal Tool. We synthesised the results using "best fit framework synthesis", with reference to the Andersen socio-behavioural model.

RESULTS

Fifty two studies met inclusion criteria. 46 (88%) were from HIC. Predisposing factors: There was evidence linking increased likelihood of service use with female gender; Caucasian ethnicity; higher education levels; and being unmarried; although this was not consistent across all studies. Need factors: There was consistent evidence of an association between service utilisation and self-evaluated health status; duration of symptoms; disability; comorbidity; and panic symptoms. Associations with symptom severity were frequently but less consistently reported. Enabling factors: The evidence did not support an association with income or rural residence. Inconsistent evidence was found for associations between unemployment or having health insurance and use of services. There was a lack of research from LMIC and on contextual level factors.

CONCLUSION

In HIC, failure to seek treatment for CMD is associated with less disabling symptoms and lack of perceived need for healthcare, consistent with suggestions that "treatment gap" statistics over-estimate unmet need for care as perceived by the target population. Economic factors and urban/rural residence appear to have little effect on treatment-seeking rates. Strategies to address potential healthcare inequities for men, ethnic minorities, the young and the elderly in HIC require further evaluation. The generalisability of these findings beyond HIC is limited. Future research should examine factors associated with health service utilisation for CMD in LMIC, and the effect of health systems and neighbourhood factors.

TRIAL REGISTRATION

PROSPERO registration number: 42016046551 .

Comorbidity between pain and mental illness - Evidence of a bidirectional relationship

BACKGROUND

Pain from various locations in the body and mental illness are common and the comorbidity between the two is well-known although the temporal relationship remains to be determined. Our aim was to follow patients over time to study if pain (here dorsalgia/abdominal pain) or fibromyalgia lead to an increased risk of developing mental illness (here depression/anxiety) and/or the reverse, that is whether patients with mental illness have an increased risk to develop pain or fibromyalgia, compared to the rest of the population.

METHODS

This prospective cohort study used the Skåne Healthcare Register, covering all care in the region of Skåne, southern Sweden (population ~1.3 million). The cohort included healthcare consultations in primary care, outpatient specialized care and inpatient care between 2007 and 2016 for all patients without prior registered diagnosis of mental illness or pain, aged 18 or older (n = 504,365).

RESULTS

The incidence rate ratio (IRR) for developing mental illness after pain was 2.18 (95% CI = 2.14-2.22) compared to without pain. IRR for developing pain after mental illness was 2.02 (95% CI = 1.98-2.06) compared to without mental illness. Corresponding IRR for developing mental illness after fibromyalgia was 4.05 (95% CI = 3.58-4.59) and for developing fibromyalgia after mental illness 5.54 (95% CI = 4.99-6.16).

CONCLUSIONS

This study shows a bidirectional influence of similar magnitude of pain and mental illness, respectively. In monitoring patients with pain or mental illness, a focus on both conditions is thus important to develop appropriate, targeted interventions and may increase the likelihood of improved outcomes.

SIGNIFICANCE

We followed a population-based cohort over a period of 10 years, including incident cases of both exposure and outcome and found a bidirectional relationship between pain and mental illness. Clinicians need to pay attention on both conditions, in patients seeking care due to mental illness or pain.

Prevalence and predictors of occupational stress among quarry workers in rural Rajasthan, India

Purpose

Despite increasing recognition of the importance of mental health at the workplace, there is very little evidence and limited research information on the issue of the poor mental health of the workers, especially miners. The purpose of this paper is to assess the relationship between stress faced by quarry workers in consonance with their socio-demographic characteristics and their working conditions.

Design/methodology/approach

This study was a cross-sectional study of quarry workers with comparison groups in the Karauli district of Rajasthan, a state located in north-western India. The study was conducted during the period May-September 2014, as part of a doctoral program. The study sample comprised a total of 218 quarry workers along with a comparison group of 203 non-miners. The level of occupational stress was assessed by using a General Health Questionnaire consisting of 12 questions.

Findings

This study found that the comparison group was at a low risk of psychological stress as compared to the mine workers. The independent risk factors for occupational stress among workers were illiteracy, gender (female), married, divorced/separated, and suffering from some occupational health problem.

Social implications

This study concluded that mine workers are at a high level of stress, which underscores the need for urgent interventions from the government to address the issue. This is especially important as mine workers make significant contributions to the national income.

Originality/value

This paper fulfills an identified need to study the mental health status of quarry workers, thereby helping fill a persistent gap in Indian research on this issue.

The long and complex road in the search for treatment for mental disorders: An analysis of the process in five groups of patients

Seeking treatment for mental-health problems is a complex process, with different underlying motives in each stage. However, the entire process and these motives have hardly been investigated. This study aims to analyze the different stages of the help-seeking process and their underlying motives in five groups of patients with different mental disorders. In all, 156 patients seeking treatment in outpatient mental health clinics were individually interviewed: 71 had Obsessive-Compulsive Disorder (OCD), 21 had Agoraphobia (AGO), 18 had Major Depressive Disorder (MDD), 20 had Anorexia Nervosa (AN), and 22 had Cocaine Dependence (COC). The AGO and MDD patients delayed significantly less time in recognizing their mental health symptoms. Moreover, MDD patients disclosed their symptoms and searched for professional help faster than the other groups. The most relevant variables in the recognition of disorders were the loss of control over the symptoms, the interference produced by these symptoms, and their negative impact on the person's emotional state. The most frequent barriers to seeking treatment were related to minimizing the symptoms and fear of stigma. Finally, the most important motivator for seeking treatment was the awareness that minimizing the symptoms did not help to reduce them, lessen their interference, or make them disappear.

Work Productivity Loss in Young Workers Is Substantial and Is Associated With Spinal Pain and Mental Ill-health Conditions

OBJECTIVE

The aim of this study was to estimate the effect of spinal pain and mental ill-health conditions on work productivity in 22-year-old workers.

METHODS

A cross-sectional design using data from the Raine Study cohort (n = 867) including self-reported work productivity and self-report of health practitioner diagnosed medical conditions.

RESULT

Mean (median, 25th-percentile, 75th-percentile) annualized cost of health-related absenteeism was $AUD1899 ($0, $0, $1738) per worker. Annualized cost of presenteeism was $AUD10,674 ($6573, $4003, $13,087) per worker. Spinal pain and mental ill-health conditions were associated with increased health-related absenteeism, but not presenteeism.

CONCLUSION

Work productivity loss in young workers is a substantial problem needing priority attention. Addressing spinal pain and mental ill-health may improve productivity of this important sector of the workforce.

Efficacy of the Santhiflex™ method of psychomotor postural re-education in the treatment of chronic low back pain

Introduction Chronic low back pain is conceived of as a multifactorial syndrome that results in the loss of functional capacity. It affects the quality of life of an individual and its treatment requires a comprehensive therapeutic approach. Objective The aim of this study is to assess the efficacy of the Santhiflex™ Method in the treatment of chronic low back pain, as well as its effects on functional capacity, health-related quality of life and body posture. Materials and methods 20 patients with chronic low back pain were randomly distributed into two groups of 10: an experimental group, which was treated with the Santhiflex™ Method of psychomotor postural re-education; and a control group, which was given a lecture on postural orientation after the first evaluation. Results The obtained data were analyzed using standard statistical software, SPSS-17 for Windows (SPSS, Chicago, IL, USA) and the results were expressed as absolute and relative frequencies, and median with first and third quartiles. The nonparametric Wilcoxon test was used for within-group samples. Intergroup comparison was performed using the Mann-Whitney test. A value of p < 0.05 was considered statistically significant. There were significant differences in the main factors assessed. Discussion The findings demonstrated a significant total improvement in low back pain scores in the EG, whereas there was no significant change in the CG. Conclusion The Santhiflex™ Method is effective in the treatment of low back pain and has positive effects on functional capacity and health-related quality of life.

Common mental and musculoskeletal disorders as predictors of disability retirement among Finns

BACKGROUND

The contribution of common mental disorders (CMD) co-occurring with chronic musculoskeletal disorders (MSD) to disability retirement is not known.

METHODS

A nationally representative sample (the Health 2000 survey) comprised 3943 occupationally active Finns aged 30-63. MSD and other chronic disorders were assessed by a physician in a standardized clinical examination, and CMD using the Composite International Diagnostic Interview. Disability pension data for 2000-2011 was retrieved from national pension records. Cox regression was used with censoring for death and pension other than that for disability. Covariate information was based on an interview.

RESULTS

The baseline prevalence of CMD was 9.4% and of MSD 31.1%. CMD co-occurred with MSD in 3.3% of participants. The risks inflicted by CMD and MSD were additive. Thirty-eight per cent of the co-morbid subjects, 18% of those with CMD and 19% of those with MSD retired prematurely during the average follow-up of 8.6 years. Compared with those with neither type of disorder, the hazard ratio (HR) for disability pension was 2.4 (95% CI 1.7-2.7) for CMD only, 2.2 (1.8-2.7) for MSD only, and 4.1 (2.9-5.7) for the occurrence of both, allowing for age, gender, other chronic disorders, working conditions, and socio-economic and lifestyle factors. No synergistic or antagonistic interactive effects were observed.

LIMITATIONS

The determinants were measured only once and we had no information on incident disorders during the follow-up.

CONCLUSIONS

It is important to identify subjects with both mental and musculoskeletal complaints in order to efficiently support their work ability.

Chronic back problems and labor force participation in a national population survey: impact of comorbid arthritis

Background

Back problems and arthritis are common chronic conditions, while having back problems is a frequent reason for lost work time. The objective of this study was to investigate employment status amongst individuals who report having both back problems and arthritis, compared to having either condition alone.

Methods

We analyzed data from the 2007/2008 Canadian Community Health Survey (ages 25–64, n = 79,719). Respondents who reported neither having worked in the past 12 months nor the past week were coded as not currently employed. Those reported being permanently unable to work were considered to be out of the labor force. Log-Poisson regressions, adjusting for socio-demographic and lifestyle factors, were used to estimate risks for being not currently employed or being out of the labor force for 5 mutually exclusive groups of chronic conditions: arthritis and back problems, back problems, arthritis, any other chronic conditions, and no chronic conditions.

Results

12.7% of respondents reported being not currently employed and 2.9% being out of the labor force. 5.8% of respondents reported both arthritis and back problems, while 16.1% reported back problems and 7.3% arthritis. The back problems and arthritis group had the highest risk of not being currently employed. The risk was higher for men (PR = 1.90; 95% CI = 1.58, 2.29) than for women (PR = 1.31; 95% CI = 1.18, 1.46). Risks of being permanently unable to work were also the greatest for those with comorbid back problems and arthritis.

Conclusions

There is a need for a reappraisal of back problems as a cause of work disability to account for the possibility of co-occurring arthritis.

"Caseness" for depression and anxiety in a depressed outpatient population: symptomatic outcome as a function of baseline diagnostic categories

OBJECTIVE

To examine the diagnostic status of patients enrolled in the Factors Influencing Depression Endpoints Research (FINDER) study and symptomatic outcomes and baseline characteristics associated with remission 6 months after commencing antidepressant therapy.

METHOD

Status of clinically diagnosed depressed patients was based on self-rated Hospital Anxiety and Depression Scale (HADS) scores. Five diagnostic categories were defined: noncaseness, mixed anxiety-depression (subthreshold depressive and anxious symptomatology), caseness for depression, caseness for anxiety, and caseness for comorbid anxiety-depression. Assessments included the Somatic Symptom Inventory and health-related quality of life (HRQoL) using the Medical Outcomes Study 36-item Short-Form Health Survey. Remission rates (based on HADS noncaseness for both depression and anxiety) and their associations with baseline characteristics were investigated. Patients were enrolled between May 2004 and September 2005.

RESULTS

Of the 3,353 patients enrolled, 66.4% met the HADS criteria for probable depressive disorder and 74.1% met the HADS criteria for probable anxiety disorder. Somatic symptom severity (painful and nonpainful) was highest and HRQoL was lowest in the comorbid anxiety-depression group. After 6 months, remission rates were 50.2% for caseness for depression, 40.4% for caseness for anxiety, and 40.6% for caseness for comorbid anxiety-depression. A lower number of previous depressive episodes, shorter current episode duration, lower painful and nonpainful somatic symptom scores, being married, a higher educational level, and working for pay were most consistently associated with higher remission rates.

CONCLUSIONS

Physicians do not always differentiate between anxiety and depressive symptoms when making a clinical diagnosis of depression. At baseline, most enrolled patients had significant emotional depressive and anxious symptoms, as well as significant nonpainful and painful somatic symptomatology, and these factors were associated with outcome.

Time course of improvement of different symptom clusters in patients with major depression and pain treated with duloxetine or placebo

OBJECTIVE

This post hoc analysis assessed improvements in a broad range of psychopathological dimensions and in interference of pain with functioning as well as the time course of these improvements in patients with major depressive disorder (MDD) and pain treated with duloxetine versus placebo.

RESEARCH DESIGN AND METHODS

Data were derived from an 8-week, double-blind, placebo-controlled study in adult outpatients with MDD and non-specific physical pain. Mean times between improvement in Brief Pain Inventory (BPI) pain severity and interference of pain with functioning, depression severity, and dimensions of the Symptom Checklist-90 Revised (SCL-90-R) subscales were evaluated by responder analysis.

RESULTS

For all SCL-90-R subscores, a higher percentage of duloxetine-treated patients reached responder status (50% improvement) as compared to placebo, of these anger/hostility and interpersonal sensitivity had the highest response rates. In the duloxetine-treated group, response for anger/hostility, phobic anxiety, psychoticism, and most items assessing interference of pain with functioning was reached earlier than response for pain severity. The times to response for Montgomery-Asberg Depression Rating Scale (MADRS) and for pain severity were similar. In the placebo-treated group, times to response for depression, anxiety, and MADRS were longer than response for pain severity.

CONCLUSIONS

Duloxetine, and to a lesser degree placebo, not only improved depressive symptomatology and pain severity but also a much broader range of psychopathological symptoms. Time courses of improvements were different for duloxetine and placebo, in that depression and interference of pain with functioning improved earlier than pain severity in duloxetine-treated patients but not in placebo-treated patients. These results suggest that time to response is a valuable means of characterizing treatment effects.

LIMITATIONS

Pain was only assessed as a symptom and no further clinical diagnosis for pain syndromes were performed. CLINICAL TRIAL REGISTRY ID: www.clinicaltrial.gov - NCT00191919.

Relationship between painful physical symptoms and severity of depressive symptomatology and suicidality

We examined the prevalence of painful physical symptoms in patients with major depressive disorder (MDD), clinical correlations therewith, and associations between painful symptoms and depression severity, quality of life, and suicidality, in a clinical sample in Korea. A total of 414 psychiatric outpatients at least 18years of age, with a primary diagnosis of MDD based on the DSM-IV-TR, were enrolled at the discretion of their treating psychiatrist. Patients were assessed for the presence or absence of painful physical symptoms (PPS+ and PPS-, respectively), defined by a total score ≥5 on the pain subscale (PS) of the Depression and Somatic Symptoms Scale (DSSS). DSSS and the Clinical Global Impressions-Severity of Illness scale (CGI-S) determined depression severity, and the EuroQoL Questionnaire-5 dimensions (EQ-5D) determined perceived quality of life. Questions about suicidality during current depressive episode were also asked to the participants. Overall, 30.4% of patients were classified as PPS+. PPS+ patients were older, less educated, less frequently unmarried, and more frequently widowed/divorced/separated compared to PPS- patients. PPS+ patients showed a significantly greater depression severity (CGI-S mean difference 0.92; 95% CI=0.68 to 1.16; DSSS mean difference 18.39; 95% CI=16.28 to 20.50), a significantly lower quality of life (EQ-5D VAS mean difference -18.15; 95% CI=-22.68 to -13.62), and significantly higher suicidal ideation (OR 1.73; 95% CI 1.04-2.86) during the current depressive episode. This study suggests that assessment of depressive patients should include detailed questions about painful physical symptoms, and treatment of MDD should involve management targeting painful physical symptoms as well as emotional and non-painful physical symptoms.

Prospects for person-centred diagnosis in general medicine

Fundamental changes in health care delivery are revealing the limitations of our collective focus on disease-specific and technology-driven health care. We increasingly treat diseases, not persons, and it moves individuals from active participants in the care process to passive recipients of interventions. This problem is especially important for general medicine, where we must maintain the balance between person and disease, caring and technology. In this chapter, we focus on prospects for person-centred diagnosis and treatment in general (primary care) medicine in this time of change. We describe one way to employ the biopsychosocial model to integrate person-centred diagnosis in routine clinical practice, and we propose a 'person-centred path' for primary care development with the health information technology tools we will need to develop to follow that path.

Presence and predictors of pain in depression: results from the FINDER study

BACKGROUND

Patients with depression often experience pain. There is limited understanding of the relation between pain and other symptoms (depressive, anxious and non-painful somatic symptoms). This exploratory study assesses pain severity and interference of pain with functioning in a clinically depressed population and investigates the relation between the different groups of symptoms.

METHODS

FINDER was a 6-month prospective, observational study investigating health-related quality of life of outpatients with depression initiating antidepressant treatment. Patients completed ratings on the Hospital Anxiety and Depression Scale (HADS), Somatic Symptom Inventory (SSI-28), and overall pain severity and interference of pain with functioning using Visual Analogue Scales (VAS) at baseline and at 3 and 6 months. Regression analyses identified factors associated with overall pain severity and interference of pain with functioning, at baseline and over the observation period.

RESULTS

Of 3468 eligible patients at baseline, 56.3% experienced moderate to severe pain and 53.6% had moderate to severe pain-related interference with functioning. At 6 months of follow-up, these proportions decreased to 32.5% and 28.1%, respectively. Higher baseline SSI-somatic scores (non-painful) were strongly associated with greater pain severity and greater pain-related interference with functioning at baseline and over 6 months. Certain socio-demographic (increasing age, being unemployed) and depression-related factors (more previous episodes, longer duration of current episode) were also significantly associated with greater pain severity and interference over 6 months, while higher baseline severity of depression (HADS-D) and further education were associated with less severe pain or pain-related interference with functioning over 6 months.

CONCLUSIONS

Over half of depressed patients in this study experienced moderate to severe pain. Painful somatic symptoms appear to be closely related to non-painful somatic symptoms, more than to depressive or anxious symptoms suggesting that painful and non-painful somatic symptoms can be considered as one group of 'somatic symptoms,' all of them associated with depressive and anxious symptoms.

Low-frequency transcranial magnetic stimulation in patients with fibromyalgia and major depression

OBJECTIVE

To study the efficacy of low-frequency transcranial magnetic stimulation in patients with fibromyalgia and major depression.

DESIGN

Twenty-eight patients were randomly assigned to receive 20 sessions of real or sham transcranial magnetic stimulation of the right dorsolateral prefrontal cortex. The main stimulation parameters were 15 trains at 110% of the motor threshold for 60 seconds at a frequency of 1 Hz. Blinded external evaluators administered the fibromyalgia scales (FibroFatigue, Likert pain) and the depression scales (Hamilton Depression Rating Scale, Clinical Global Impression) during the study.

RESULTS

Both treatment groups (real and sham) improved their scores in some of the scales (FibroFatigue and Clinical Global Impression), although there were no differences between them. No improvements were observed in the Likert Pain Scale in either of the groups.

CONCLUSION

With the methodology used in this study, patients with fibromyalgia and major depression who received real magnetic stimulation did not present significant differences in symptoms with respect to those who received sham magnetic stimulation.