Prevalence of common mental disorders in general practice attendees across EuropeMichael King, Irwin Nazareth, Gus Levy et al.|The British Journal of Psychiatry|2008 BACKGROUND: There is evidence that the prevalence of common mental disorders varies across Europe. AIMS: To compare prevalence of common mental disorders in general practice attendees in six European countries. METHOD: Unselected attendees to general practices in the UK, Spain, Portugal, Slovenia, Estonia and The Netherlands were assessed for major depression, panic syndrome and other anxiety syndrome. Prevalence of DSM-IV major depression, other anxiety syndrome and panic syndrome was compared between the UK and other countries after taking account of differences in demographic factors and practice consultation rates. RESULTS: Prevalence was estimated in 2,344 men and 4,865 women. The highest prevalence for all disorders occurred in the UK and Spain, and lowest in Slovenia and The Netherlands. Men aged 30-50 and women aged 18-30 had the highest prevalence of major depression; men aged 40-60 had the highest prevalence of anxiety, and men and women aged 40-50 had the highest prevalence of panic syndrome. Demographic factors accounted for the variance between the UK and Spain but otherwise had little impact on the significance of observed country differences. CONCLUSIONS: These results add to the evidence for real differences between European countries in prevalence of psychological disorders and show that the burden of care on general practitioners varies markedly between countries.
Development and Validation of an International Risk Prediction Algorithm for Episodes of Major Depression in General Practice AttendeesMichael King, Carl Walker, Gus Levy et al.|Archives of General Psychiatry|2008 CONTEXT: Strategies for prevention of depression are hindered by lack of evidence about the combined predictive effect of known risk factors. OBJECTIVES: To develop a risk algorithm for onset of major depression. DESIGN: Cohort of adult general practice attendees followed up at 6 and 12 months. We measured 39 known risk factors to construct a risk model for onset of major depression using stepwise logistic regression. We corrected the model for overfitting and tested it in an external population. SETTING: General practices in 6 European countries and in Chile. PARTICIPANTS: In Europe and Chile, 10 045 attendees were recruited April 2003 to February 2005. The algorithm was developed in 5216 European attendees who were not depressed at recruitment and had follow-up data on depression status. It was tested in 1732 patients in Chile who were not depressed at recruitment. Main Outcome Measure DSM-IV major depression. RESULTS: Sixty-six percent of people approached participated, of whom 89.5% participated again at 6 months and 85.9%, at 12 months. Nine of the 10 factors in the risk algorithm were age, sex, educational level achieved, results of lifetime screen for depression, family history of psychological difficulties, physical health and mental health subscale scores on the Short Form 12, unsupported difficulties in paid or unpaid work, and experiences of discrimination. Country was the tenth factor. The algorithm's average C index across countries was 0.790 (95% confidence interval [CI], 0.767-0.813). Effect size for difference in predicted log odds of depression between European attendees who became depressed and those who did not was 1.28 (95% CI, 1.17-1.40). Application of the algorithm in Chilean attendees resulted in a C index of 0.710 (95% CI, 0.670-0.749). CONCLUSION: This first risk algorithm for onset of major depression functions as well as similar risk algorithms for cardiovascular events and may be useful in prevention of depression.
The Therapeutic Relationship and Adherence to Antipsychotic Medication in SchizophreniaOBJECTIVE: Previous research has shown that a better therapeutic relationship (TR) predicts more positive attitudes towards antipsychotic medication, but did not address whether it is also linked with actual adherence. This study investigated whether the TR is associated with adherence to antipsychotics in patients with schizophrenia. METHODS: 134 clinicians and 507 of their patients with schizophrenia or a related psychotic disorder participated in a European multi-centre study. A logistic regression model examined how the TR as rated by patients and by clinicians is associated with medication adherence, adjusting for clinician clustering and symptom severity. RESULTS: Patient and clinician ratings of the TR were weakly inter-correlated (r(s) = 0.13, p = 0.004), but each was independently linked with better adherence. After adjusting for patient rated TR and symptom severity, each unit increase in clinician rated TR was associated with an increase of the odds ratio of good compliance by 65.9% (95% CI: 34.6% to 104.5%). After adjusting for clinician rated TR and symptom severity, for each unit increase in patient rated TR the odds ratio of good compliance was increased by 20.8% (95% CI: 4.4% to 39.8%). CONCLUSIONS: A better TR is associated with better adherence to medication among patients with schizophrenia. Patients' and clinicians' perspectives of the TR are both important, but may reflect distinct aspects.
The risk for depression conferred by stressful life events is modified by variation at the serotonin transporter 5HTTLPR genotype: evidence from the Spanish PREDICT-Gene cohortPatients' views of involuntary hospital admission after 1 and 3 months: prospective study in 11 European countriesStefan Priebe, Christina Katsakou, Matthias Glöckner et al.|The British Journal of Psychiatry|2010 BACKGROUND: Legislation and practice of involuntary hospital admission vary substantially among European countries, but differences in outcomes have not been studied. AIMS: To explore patients' views following involuntary hospitalisation in different European countries. METHOD: In a prospective study in 11 countries, 2326 consecutive involuntary patients admitted to psychiatric hospital departments were interviewed within 1 week of admission; 1809 were followed up 1 month and 1613 3 months later. Patients' views as to whether the admission was right were the outcome criterion. RESULTS: In the different countries, between 39 and 71% felt the admission was right after 1 month, and between 46 and 86% after 3 months. Females, those living alone and those with a diagnosis of schizophrenia had more negative views. Adjusting for confounding factors, differences between countries were significant. CONCLUSIONS: International differences in legislation and practice may be relevant to outcomes and inform improvements in policies, particularly in countries with poorer outcomes.