Miquel Roca

The mental health risks of economic crisis in Spain: evidence from primary care centres, 2006 and 2010

BACKGROUND Nearly all European countries have been affected by the economic crisis that began in 2007, but the consequences have been among the worst in Spain. We investigated the associations of the recession on the frequency of mood, anxiety, somatoform, alcohol-related and eating disorders among those visiting Spanish primary care settings. METHODS Primary care physicians selected randomized samples of patients attending primary care centres representing Spains consulting populations. A total of 7940 patients in 2006-07 and 5876 in 2010-11 were administered the Primary Care Evaluation of Mental Disorders (PRIME-MD) instrument to diagnose mental disorders. Multivariate logistic regression models were used to quantify overall changes in the frequency of mental disorders, adjusting for potential socio-demographic differences in consulting populations unrelated to economic factors. RESULTS Compared with the pre-crisis period of 2006, the 2010 survey revealed substantial and significant increases in the proportion of patients with mood (19.4% in major depression), anxiety (8.4% in generalized anxiety disorder), somatoform (7.3%) and alcohol-related disorders (4.6% in alcohol dependence), all significant at P < 0.001, but not in eating disorders (0.15%, P = 0.172). Independent of observed risks of unemployment [odds ratio (OR) = 1.72, P < 0.001], we observed a significantly elevated risk of major depression associated with mortgage repayment difficulties (OR = 2.12, P < 0.001) and evictions (OR = 2.95, P < 0.001). About one-third of the overall risk in the consulting populations attendance with mental health disorders could be attributed to the combined risks of household unemployment and mortgage payment difficulties. CONCLUSION Recession has significantly increased the frequency of mental health disorders and alcohol abuse among primary care attendees in Spain, particularly among families experiencing unemployment and mortgage payment difficulties.

Mood changes after delivery: role of the serotonin transporter gene

BACKGROUND Polymorphic variations in the serotonin transporter gene (5-HTT) moderate the depressogenic effects of tryptophan depletion. After childbirth there is a sharp reduction in brain tryptophan availability, thus polymorphic variations in 5-HTT may play a similar role in the post-partum period. AIMS To study the role of 5-HTT polymorphic variations in mood changes after delivery. METHOD One thousand, eight hundred and four depression-free Spanish women were studied post-partum. We evaluated depressive symptoms at 2-3 days, 8 weeks and 32 weeks post-partum. We used diagnostic interview to confirm major depression for all probable cases. Based on two polymorphisms of 5-HTT (5-HTTLPR and STin2 VNTR), three genotype combinations were created to reflect different levels of 5-HTT expression. RESULTS One hundred and seventy-three women (12.7%) experienced major depression during the 32-week post-partum period. Depressive symptoms were associated with the high-expression 5-HTT genotypes in a dose-response fashion at 8 weeks post-partum, but not at 32 weeks. CONCLUSIONS High-expression 5-HTT genotypes may render women more vulnerable to depressive symptoms after childbirth.

Psychometric properties of the twelve item World Health Organization Disability Assessment Schedule II (WHO-DAS II) in Spanish primary care patients with a first major depressive episode

BACKGROUND Psychometric information on the World Health Organization Disability Assessment Schedule II (WHO-DAS II) in depressive primary care (PC) patients is scarce and has been obtained with the 36-item version of the instrument. The main objective of this study was to analyse the dimensionality, internal consistency and construct validity of the 12-item WHO-DAS II in a large sample of Spanish PC patients with a first diagnosed major depressive episode. METHOD Data were collected between December 2006 and July 2007. A total of 3615 adult (18 years or older) PC patients from 17 regions of Spain with a first diagnosed major depressive episode participated in the study. The 12-item WHO-DAS II and a battery of instruments assessing sociodemographic characteristics, depression severity (PHQ-9), quality of life (EQ-5D) and chronic health conditions were administered by the family physician during the consultation. RESULTS The principal component analysis and the subsequent confirmatory factor analysis indicated that the 12-item WHO-DAS II is one-dimensional. The instrument showed adequate internal consistency (alpha=0.89) and construct validity because it was significantly associated with quality of life and depression severity (convergent validity) and was able to discriminate between patients on sick leave and those that were working (discriminative validity). LIMITATIONS The test-retest reliability and sensitivity to change of the instrument was not examined due to the cross-sectional design of the study. CONCLUSIONS The 12-item WHO-DAS II is a reliable, valid and useful tool for assessing overall disability in PC patients with depression.

Brain dysfunction in fibromyalgia and somatization disorder using proton magnetic resonance spectroscopy: a controlled study

Fayed N, Andres E, Rojas G, Moreno S, Serrano‐Blanco A, Roca M, Garcia‐Campayo J. Brain dysfunction in fibromyalgia and somatization disorder using proton magnetic resonance spectroscopy: a controlled study.

The 12-item World Health Organization Disability Assessment Schedule II (WHO-DAS II): a nonparametric item response analysis

BackgroundPrevious studies have analyzed the psychometric properties of the World Health Organization Disability Assessment Schedule II (WHO-DAS II) using classical omnibus measures of scale quality. These analyses are sample dependent and do not model item responses as a function of the underlying trait level. The main objective of this study was to examine the effectiveness of the WHO-DAS II items and their options in discriminating between changes in the underlying disability level by means of item response analyses. We also explored differential item functioning (DIF) in men and women.MethodsThe participants were 3615 adult general practice patients from 17 regions of Spain, with a first diagnosed major depressive episode. The 12-item WHO-DAS II was administered by the general practitioners during the consultation. We used a non-parametric item response method (Kernel-Smoothing) implemented with the TestGraf software to examine the effectiveness of each item (item characteristic curves) and their options (option characteristic curves) in discriminating between changes in the underliying disability level. We examined composite DIF to know whether women had a higher probability than men of endorsing each item.ResultsItem response analyses indicated that the twelve items forming the WHO-DAS II perform very well. All items were determined to provide good discrimination across varying standardized levels of the trait. The items also had option characteristic curves that showed good discrimination, given that each increasing option became more likely than the previous as a function of increasing trait level. No gender-related DIF was found on any of the items.ConclusionsAll WHO-DAS II items were very good at assessing overall disability. Our results supported the appropriateness of the weights assigned to response option categories and showed an absence of gender differences in item functioning.

Risk factors for the onset of panic and generalised anxiety disorders in the general adult population: A systematic review of cohort studies

BACKGROUND We aimed to assess available evidence on risk factors associated with the onset of panic disorder (PD) and/or generalised anxiety disorder (GAD) in cohort studies in the general adult population. METHODS Systematic review using MEDLINE, PsycINFO and Embase. Search terms included panic disorder, generalised anxiety disorder, cohort studies and risk factors. RESULTS We finally selected 21 studies, involving 163,366 persons with a median follow-up of 5 years. 1) Sociodemographic factors: PD was associated with age, female gender, and few economic resources. GAD was associated with age, non-Hispanics and Blacks, being divorced or widowed, and few economic resources. 2) Psychosocial factors: PD was associated with smoking and alcohol problems. GAD was associated with stressful life events in childhood and adulthood, and personality. 3) Physical and mental health factors: PD was associated with the number of physical diseases suffered and the joint hypermobility syndrome. PD was also associated with a parental history of mental disorders, as well as with other anxiety disorders and other mental health problems in the person affected. GAD was associated with a parental history of mental disorders, as well as with other anxiety disorders and other mental health problems in the person affected, plus already having received psychiatric care. LIMITATIONS Few studies examined the same risk factors. CONCLUSIONS Sociodemographic, psychosocial and mental-physical health risk factors were determinant for the onset of PD and GAD in the general adult population. These findings could be useful for developing preventive interventions in PD and GAD.

Effectiveness of cognitive behaviour therapy for the treatment of catastrophisation in patients with fibromyalgia: a randomised controlled trial

IntroductionNo randomised, controlled trials have been conducted to date on the efficacy of psychological and pharmacological treatments of pain catastrophising (PC) in patients with fibromyalgia. Our aim in this study was to assess the effectiveness of cognitive-behaviour therapy (CBT) and the recommended pharmacological treatment (RPT) compared with treatment as usual (TAU) at the primary care level for the treatment of PC in fibromyalgia patients.MethodsWe conducted a six-month, multicenter, randomized, blinded, parallel group, controlled trial in which patients were randomly assigned to one of three study arms: CBT (n = 57), RPT (n = 56) and TAU at the primary care level (n = 56). The major outcome of this study was PC in patients with fibromyalgia. The secondary variables were pain acceptance, depression, anxiety, pain, global function and quality of life.ResultsCBT significantly decreased global PC at the six-month follow-up examination with effect sizes of Cohens d = 0.73 and 1.01 compared with RPT and TAU, respectively. CBT was also more effective than RPT and TAU at increasing pain acceptance at the six-month follow-up examination (effect sizes of Cohens d = 0.77 and 0.80, respectively). Compared with RPT and TAU, CBT was more effective at improving global function based on the Fibromyalgia Impact Questionnaire (six-month effect sizes Cohens d = 0.44 and 0.53, respectively) and quality of life based on the European Quality of Life Scale (six-month effect sizes Cohens d = 0.11 and 0.40, respectively). There were no differences among the three treatments with regard to pain and depression.ConclusionsCBT shows higher efficacy than RPT and TAU not only in key outcomes in FM, such as function and quality of life, but also in relevant mediators of treatment effects, such as pain catastrophising and pain acceptance.Trial registrationISRCTN: ISRCTN10804772

Association study of 44 candidate genes with depressive and anxiety symptoms in post-partum women

The post-partum period is a time of extreme vulnerability for a whole spectrum of psychiatric disorders. Delivery may be considered an important risk factor in genetically susceptible women. Five hundred and eight SNPs in 44 genes at candidate pathways putatively related to mood changes after delivery were genotyped in a multicenter cohort of 1804 women from Spain. Participants completed two scales at 2-3 days, 8 weeks, and 32 weeks post-partum, the Edinburgh Post-partum Depression Scale (EPDS) and the Spielberger State-Trait Anxiety Inventory (STAI). Those women who scored 9 or more on EPDS were evaluated for major depression using the Diagnostic Interview for Genetics Studies (DIGS) adapted for post-partum depression. Association with major depression was assessed using likelihood ratio tests under a codominant genotype model. Association with scale scores was tested using linear mixed models to take into account repeated measures over time. Two intronic SNPs, one at the serotonin transporter gene (SLC6A4) and another at dopa decarboxylase (DDC), were significantly associated to STAI anxiety scores after multiple testing correction (nominal P=0.0000513 and 0.000097, respectively). In addition, post hoc analysis at the unphased haplotype level using nominal significant SNPs revealed an association with a combination of three SNPs at protein kinase C, beta (PRKCB) with major depression, significant after multiple testing correction (nominal global P=0.0001596). In conclusion, we detected a role of SLC6A4 in mood changes after stressful events, and revealed new putative associations involving DDC and PRKCB. Therefore, these genes deserve further investigation to confirm these results.

Brain dysfunction behind functional symptoms: neuroimaging and somatoform, conversive, and dissociative disorders.

Purpose of review Neuroimaging research in psychiatry has been increasing exponentially in recent years, yet many psychiatrists are relatively unfamiliar with this field. This article summarizes the findings of the most relevant research articles on the neuroimaging of somatoform, conversive, and dissociative disorders published from January 2007 through June 2008. Recent findings Neuroimaging findings summarized here include alterations of stress regulation and coping in somatoform pain disorders, the importance of catastrophizing in somatization disorder, and the relevance of a history of physical/sexual abuse in irritable bowel syndrome. Regarding fibromyalgia, three of the most significant advances have been the impossibility of differentiating primary and concomitant fibromyalgia in the presence of quiescent underlying disease, the role of hippocampal dysfunction, and the possibility that fibromyalgia may be characterized as an aging process. In dissociative disorders, the high levels of elaborative memory encoding and the reduced size of the parietal lobe are highlighted. Summary The most promising clinical consequence of these studies, in addition to improving knowledge about the etiology of these illnesses, is the possibility of using neuroimaging findings to identify subgroups of patients, which could allow treatments to be tailored.

Clinical Patterns and Treatment Outcome in Patients with Melancholic, Atypical and Non-Melancholic Depressions

Objective To assess sociodemographic, clinical and treatment factors as well as depression outcome in a large representative clinical sample of psychiatric depressive outpatients and to determine if melancholic and atypical depression can be differentiated from residual non-melancholic depressive conditions. Subjects/Materials and Method A prospective, naturalistic, multicentre, nationwide epidemiological study of 1455 depressive outpatients was undertaken. Severity of depressive symptoms was assessed by the Hamilton Depression Rating Scale (HDRS) and the Self Rated Inventory of Depressive Symptomatology (IDS-SR30). IDS-SR30 defines melancholic and atypical depression according to DSM-IV criteria. Assessments were carried out after 6–8 weeks of antidepressant treatment and after 14–20 weeks of continuation treatment. Results Melancholic patients (16.2%) were more severely depressed, had more depressive episodes and shorter episode duration than atypical (24.7%) and non-melancholic patients. Atypical depressive patients showed higher rates of co-morbid anxiety disorders and substance abuse. Melancholic patients showed lower rates of remission. Conclusion Our study supports a different clinical pattern and treatment outcome for melancholic and atypical depression subtypes.