J. Alonso

Prevalence of mental disorders in Europe: results from the European Study of the Epidemiology of Mental Disorders (ESEMeD) project

Objective:  To describe the 12‐month and lifetime prevalence rates of mood, anxiety and alcohol disorders in six European countries.

The European Study of the Epidemiology of Mental Disorders (ESEMeD) project: an epidemiological basis for informing mental health policies in Europe.

Mental disorders are increasingly recognized as a major source of disability in the world. The costs associated with mood and anxiety disorders are very high. Forecasted future increase in the magnitude of mental disorders (1) will most likely be associated with higher costs. Nevertheless, population-based knowledge about the prevalence and distribution of mental disorders, their risk factors and their social and economic consequences is still limited. As is evidence about the efficiency of health services in managing the burden of these disorders. Whilst one would hope that our knowledge base will improve in the future it has to be noted that, for instance, the funding for depression research by the US National Institute of Health was significantly lower than might be expected based on the criterion of disability adjusted life years, when compared to 29 other conditions (2). The main sources of information about the prevalence and the burden of mental disorders diagnostic categories at the community level originated in work carried out in the United States. The Epidemiological Catchment Area (ECA) (3, 4) and the subsequent National Comorbidity Survey (NCS) (5) have provided key epidemiological data that have been used to estimate the burden of mental disorders everywhere. These seminal studies clearly showed that mood and anxiety disorders are frequent, and suggested that the level of unmet need for care is high. Similar findings have been reported in subsequent national studies (6, 7), but several studies have indicated that there may be substantial international variability in the prevalence of mental disorders (8, 9) as well as important differences in the provision and access to mental health care (9, 10). A number of previous population-based studies of mental disorders have been carried out in European countries, among these are the DEPRES study, carried out in six European countries (11), the NEMESIS study, in the Netherlands (12) the National Survey, in the UK (13), and the mental health supplement to the German National Health Interview and Examination Survey (14). Although they have provided valuable information on the epidemiology of mental disorders within Europe, each was conducted in one country or addressed a narrower scope of mental disorder, somewhat limiting their usefulness for informing health policy across Europe as a whole. The variation in the way European countries deliver their care to people with mental disorders is high. There are huge differences in personnel, settings, financing, as well as liaison with the wider health system across Europe (15). Several mental health policy reforms are ongoing on the continent. Successful policies must be based on valid and reliable knowledge of the relative efficiency of alternative organizational systems in order to reduce mental health disability. This knowledgebased approach is especially important for the emerging reality of the European Union, where economy, policy, and legislation, all of them affecting mental health care delivery, are called to converge in the near future.

Routine invasive strategy within 24 hours of thrombolysis versus ischaemia-guided conservative approach for acute myocardial infarction with ST-segment elevation (GRACIA-1): a randomised controlled trial

BACKGROUND In patients with ST-segment elevated myocardial infarction (STEMI), early post-thrombolysis routine angioplasty has been discouraged because of its association with high incidence of events. The GRACIA-1 trial was designed to reassess the benefits of an early post-thrombolysis interventional approach in the era of stents and new antiplatelet agents. METHODS 500 patients with thrombolysed STEMI (with recombinant tissue plasminogen activator) were randomly assigned to angiography and intervention if indicated within 24 h of thrombolysis, or to an ischaemia-guided conservative approach. The primary endpoint was the combined rate of death, reinfarction, or revascularisation at 12 months. Analysis was by intention to treat. FINDINGS Invasive treatment included stenting of the culprit artery in 80% (199 of 248) patients, bypass surgery in six (2%), non-culprit artery stenting in three, and no intervention in 40 (16%). Predischarge revascularisation was needed in 51 of 252 patients in the conservative group. By comparison with patients receiving conservative treatment, by 1 year, patients in the invasive group had lower frequency of primary endpoint (23 [9%] vs 51 [21%], risk ratio 0.44 [95% CI 0.28-0.70], p=0.0008), and they tended to have reduced rate of death or reinfarction (7% vs 12%, 0.59 [0.33-1.05], p=0.07). Index time in hospital was shorter in the invasive group, with no differences in major bleeding or vascular complications. At 30 days both groups had a similar incidence of cardiac events. In-hospital incidence of revascularisation induced by spontaneous recurrence of ischaemia was higher in patients in the conservative group than in those in the invasive group. INTERPRETATION In patients with STEMI, early post-thrombolysis catheterisation and appropriate intervention is safe and might be preferable to a conservative strategy since it reduces the need for unplanned in-hospital revascularisation, and improves 1-year clinical outcome.

Disability and quality of life impact of mental disorders in Europe: results from the European Study of the Epidemiology of Mental Disorders (ESEMeD) project.

Objective:  This manuscript examines the impact of mental health state and specific mental and physical disorders on work role disability and quality of life in six European countries.

Obesity and mental disorders in the general population: results from the world mental health surveys.

Objectives:(1) To investigate whether there is an association between obesity and mental disorders in the general populations of diverse countries, and (2) to establish whether demographic variables (sex, age, education) moderate any associations observed.Design:Thirteen cross-sectional, general population surveys conducted as part of the World Mental Health Surveys initiative.Subjects:Household residing adults, 18 years and over (n=62 277).Measurements:DSM-IV mental disorders (anxiety disorders, depressive disorders, alcohol use disorders) were assessed with the Composite International Diagnostic Interview (CIDI 3.0), a fully structured diagnostic interview. Obesity was defined as a body mass index (BMI) of 30 kg/m2 or greater; severe obesity as BMI 35+. Persons with BMI less than 18.5 were excluded from analysis. Height and weight were self-reported.Results:Statistically significant, albeit modest associations (odds ratios generally in the range of 1.2–1.5) were observed between obesity and depressive disorders, and between obesity and anxiety disorders, in pooled data across countries. These associations were concentrated among those with severe obesity, and among females. Age and education had variable effects across depressive and anxiety disorders.Conclusions:The findings are suggestive of a modest relationship between obesity (particularly severe obesity) and emotional disorders among women in the general population. The study is limited by the self-report of BMI and cannot clarify the direction or nature of the relationship observed, but it may indicate a need for a research and clinical focus on the psychological heterogeneity of the obese population.

Prevalence of mental disorders in Europe: results from the European Study of the Epidemiology of Mental Disorders (ESEMeD) project.

Objective:  To describe the 12‐month and lifetime prevalence rates of mood, anxiety and alcohol disorders in six European countries.

Using the EuroQol 5-D in the Catalan General Population: Feasibility and Construct Validity

Spanish and Catalan versions of the EuroQol 5-D (EQ-5D) were included in the Catalan Health Interview Survey (CHIS) and administered to a randomly selected cross-section of 12,245 individuals from the Catalan general population. This paper analyses the feasibility, convergent validity and construct validity of three parts of the EQ-5D (the descriptive system, the visual analogue scale (VAS) and the Spanish tariff) using the results obtained in the CHIS. The feasibility was assessed by the number of missing responses. The convergent validity was based on the correlations between the EQ-5D scores and the scores on the General Health Questionnaire (GHQ) and on an index of self-perceived overall health. The construct validity was assessed by analysing the degree to which lower scores on the EQ-5D correlated positively with increasing age, being female, being in a lower social class or having a lower level of education and with increasing levels of disability, co-morbidity, restricted activity, mental health problems and poor self-perceived health. A low number of missing responses on the descriptive system and the VAS (1.5%) indicated a high level of acceptance. A marked ceiling effect was found, with 67% of the sample reporting no problem in any EQ dimension. The convergent validity with the GHQ was generally low, though moderate on the mood dimension. Self-perceived overall health correlated moderately to strongly with the mean VAS and tariff values. The positive correlations between lower scores on all three elements of the EQ-5D and increasing age, increasing levels of disability, co-morbidity, restricted activity, mental health problems and poor self-perceived health provide some evidence of the instruments construct validity, as does the fact that women reported more problems than men. Multivariate analyses using the VAS and tariff values as dependent variables and all of the sociodemographic and health variables as independent variables reached R2 values of 0.45 and 0.81, respectively. The Spanish and Catalan versions of the EQ-5D have proved to be feasible and valid for use in health interview surveys.

Mental-physical co-morbidity and its relationship with disability: results from the World Mental Health Surveys

BACKGROUND The relationship between mental and physical disorders is well established, but there is less consensus as to the nature of their joint association with disability, in part because additive and interactive models of co-morbidity have not always been clearly differentiated in prior research. METHOD Eighteen general population surveys were carried out among adults as part of the World Mental Health (WMH) Survey Initiative (n=42 697). DSM-IV disorders were assessed using face-to-face interviews with the Composite International Diagnostic Interview (CIDI 3.0). Chronic physical conditions (arthritis, heart disease, respiratory disease, chronic back/neck pain, chronic headache, and diabetes) were ascertained using a standard checklist. Severe disability was defined as on or above the 90th percentile of the WMH version of the World Health Organization Disability Assessment Schedule (WHODAS-II). RESULTS The odds of severe disability among those with both mental disorder and each of the physical conditions (with the exception of heart disease) were significantly greater than the sum of the odds of the single conditions. The evidence for synergy was model dependent: it was observed in the additive interaction models but not in models assessing multiplicative interactions. Mental disorders were more likely to be associated with severe disability than were the chronic physical conditions. CONCLUSIONS This first cross-national study of the joint effect of mental and physical conditions on the probability of severe disability finds that co-morbidity exerts modest synergistic effects. Clinicians need to accord both mental and physical conditions equal priority, in order for co-morbidity to be adequately managed and disability reduced.

Sampling and methods of the European Study of the Epidemiology of Mental Disorders (ESEMeD) project

Objective: The European Study of Epidemiology of Mental Disorders (ESEMeD) project was designed to evaluate the prevalence, the impact and the treatment patterns in Europe. This paper presents an overview of the methods implemented in the project.

Randomized comparison of coronary stent implantation and balloon angioplasty in the treatment of de novo coronary artery lesions (START): a four-year follow-up.

OBJECTIVE The purpose of this study was to test the hypothesis that stent implantation in de novo coronary artery lesions would result in lower restenosis rates and better long-term clinical outcomes than balloon angioplasty. BACKGROUND Placement of an intracoronary stent, as compared with balloon angioplasty, has proven to reduce the rate of restenosis. However, the long-term clinical benefit of stenting over angioplasty has not been assessed in large randomized trials. METHODS We randomly assigned 452 patients with either stable (129 patients) or unstable (323 patients) angina pectoris to elective stent implantation (229 patients) or standard balloon angioplasty (223 patients). Coronary angiography was performed at baseline, immediately after the procedure and six months later. End points were the rate of restenosis at six months and a composite of death, myocardial infarction (MI) and target vessel revascularization over four years of follow-up. RESULTS Procedural success rate was achieved in 84% and 95% (balloon angioplasty vs. stent, respectively). The increase in the minimal luminal diameter was greater in the stent group both after the intervention (2.02 +/- 0.6 mm vs. 1.43 +/- 0.6 mm in the angioplasty group; p < 0.0001), and at six-month follow-up (1.98 +/- 0.7 mm vs. 1.63 +/- 0.7 mm; p < 0.001). The corresponding restenosis rates were 22% and 37%, respectively (p < 0.002). After four years, no differences in mortality (2.7% vs. 2.4%) and nonfatal MI (2.2% vs. 2.8%) were found between the stent and the angioplasty groups, respectively. However, the requirement for further revascularization procedures of the target lesions was significantly reduced in the stent group (12% vs. 25% in the angioplasty group; relative risk 0.49, 95% confidence interval 0.32 to 0.75, p = 0.0006); most of the repeat procedures (84%) were carried out within six months of entry into the study. CONCLUSIONS Patients who received an intracoronary stent showed a lower rate of restenosis than those treated with conventional balloon angioplasty. The benefit of stenting was maintained four years after implantation, as manifested by a significant reduction in the need for repeat revascularization.