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Biomedical subjects

J L Ayuso-Mateos

Publications and source records attributed to J L Ayuso-Mateos.

At least 19 recordsLinked to original sources
PubMed2006

Predictors of compliance with psychological interventions offered in the community.

BACKGROUND: This study sought to evaluate the acceptance of two brief psychological interventions for depressed individuals, contacted through a community survey, and to look for predictors of adherence at the patient level. METHOD: The authors used data from the Outcomes of Depression International Network (ODIN) study, which included a randomized controlled trial in which depressed individuals from five European countries, and nine geographical areas were assigned to one of three groups: individual problem-solving treatment, group psychoeducation, or control group. In this analysis, we included all of the individuals who had been assigned to one of the psychological interventions. Compliance with intervention was defined in two different ways. Multiple logistic regression was used to see which variables might predict an individual's compliance with psychological treatment. RESULTS: Psychological intervention was offered to 236 subjects. Treatment was completed by 128 subjects and not by 108 (compliance definition A). Three variables were found to have an effect on compliance A: the presence of a confidant, the use of antidepressant medication during the previous 6 months, and the previous use of any social or health services. On the other hand, 164 subjects had agreed to at least start the treatment, and 72 had not (compliance definition B). The three factors associated with compliance B were presence of a confidant, previous use of services, and the 'desire for change' score. CONCLUSIONS: Social support and previous use of services are the main predictors of compliance with a psychological treatment in depressed individuals from the community. Implications for clinical practice and community programs are discussed.

Adult↗
PubMed2006

Estimating the prevalence of schizophrenia in Spain using a disease model.

There are two main sources of information on the epidemiology of schizophrenia: prevalence and incidence studies. Prevalence rates can be estimated from incidence figures, and vice versa. The present article aims to provide an estimate of the prevalence of schizophrenia in Spain, calculated from epidemiological and demographic data, using a disease model of schizophrenia which applies the specific methodology of the WHO Global Burden of Disease project. Our model assumes a causal relationship between incidence and prevalence, but takes into account other competing risk factors of mortality; this approach is more realistic than one assuming a simple linear relationship between both parameters. Our findings indicate an estimated mean prevalence of 3.0 per 1000 inhabitants per year for men, but slightly lower for women: 2.86 per 1000. Our model enables us to compare incidence figures with those provided by prevalence studies and obtain accurate estimates of the distribution of schizophrenia in the general population, which can be used to better identify treatment needs and the consequent allocation of resources.

Adolescent↗
PubMed2006

Lithium and venlafaxine interaction: a case of serotonin syndrome.

Serotonin syndrome, which occurs as a result of enhanced serotonin concentration in the central nervous system, is a well-known adverse effect of serotonin-active medications. The concomitant use of antidepressant drugs associated with lithium as a co-adjuvant seems to increase the risk of this adverse reaction. We report a case of the serotonin syndrome during treatment with lithium and venlafaxine, an antidepressant with a dual selective re-uptake inhibition mechanism, and review the literature for similar cases. A 71-year-old woman developed serotonin syndrome while receiving treatment with moderate doses of lithium and venlafaxine for refractory depression. She had been taking higher doses of venlafaxine during the previous months with no significant secondary effects. Use of the Naranjo adverse drug reaction probability algorithm indicated a probable relationship between serotonin syndrome and treatment with lithium and venlafaxine.

Aged↗
PubMed2006

A framework for evidence-based mental health care and policy.

OBJECTIVE: Care planning integrates a growing number of disciplines, research fields and analysis techniques. A framework of the main areas of interest with regard to evidence-based health care in mental health is provided here. METHOD: The framework is based on the experience of working with data analysts and health and social decision makers at the PSICOST/RIRAG network, a Spanish research association which includes psychiatrists, health economists and health policy experts, as well as on a review of the literature. RESULTS: Three main areas have been identified and described here: outcomes management, knowledge discovery from data, and decision support systems. Their use in mental health care is reviewed. CONCLUSION: It is important to promote bridging strategies among these new fields in order to enhance communication and information transfer between the different parts involved in mental health decision making: i) clinicians and epidemiologists, ii) data analysts, iii) care policy makers and other end-users.

Evidence-Based Medicine↗
PubMed2006

Cost-effectiveness of different clinical interventions for reducing the burden of schizophrenia in Spain.

OBJECTIVE: To estimate the cost-effectiveness of interventions for reducing the burden of schizophrenia in Spain. METHOD: The study examined the cost-effectiveness of seven different types of clinical interventions at the level of Spanish population: i) current situation; ii) older antipsychotics alone; iii) new antipsychotics alone (risperidone); iv) older antipsychotics plus psychosocial treatment; v) new antipsychotics plus psychosocial treatment; vi) older antipsychotics plus case management and psychosocial treatment; vii) new antipsychotics plus case management and psychosocial treatment. RESULTS: Interventions based on the combination of haloperidol with psychosocial treatment or psychosocial treatment plus case management proved to be the most efficient strategies. CONCLUSION: The relatively modest additional cost of concurrent psychosocial treatment has significant health gains, thereby making such a combined strategy for schizophrenia more cost-effective than pharmacology alone.

Antipsychotic Agents↗
PubMed2004

Estimating the global burden of disease of mild mental retardation and cardiovascular diseases from environmental lead exposure.

The disease burden from exposure to lead resulting in mild mental retardation (due to IQ point decreases) and cardiovascular outcomes (due to increases in blood pressure) was estimated at a global level. Blood lead levels were compiled from the literature for 14 geographical regions defined by the World Health Organization according to location and adult and child mortality rates. Adjustments were applied to these levels, where appropriate, to account for recent changes relating to the implementation of lead-reduction programs and the lower levels seen in rural populations. It is estimated that mild mental retardation and cardiovascular outcomes resulting from exposure to lead amount to almost 1% of the global burden of disease, with the highest burden in developing regions. This estimate can be used to assess the magnitude of the benefits that could be accrued by increasing the global coverage of lead-reduction programs.

Adult↗
PubMed2004

Global burden of depressive disorders in the year 2000.

BACKGROUND: The initial Global Burden of Disease study found that depression was the fourth leading cause of disease burden, accounting for 3.7% of total disability adjusted life years (DALYs) in the world in 1990. AIMS: To present the new estimates of depression burden for the year 2000. METHOD: DALYs for depressive disorders in each world region were calculated, based on new estimates of mortality, prevalence, incidence, average age at onset, duration and disability severity. RESULTS: Depression is the fourth leading cause of disease burden, accounting for 4.4% of total DALYs in the year 2000, and it causes the largest amount of non-fatal burden, accounting for almost 12% of all total years lived with disability worldwide. CONCLUSIONS: These data on the burden of depression worldwide represent a major public health problem that affects patients and society.

Adult↗
PubMed2003

Estimating psychological treatment effects from a randomised controlled trial with both non-compliance and loss to follow-up.

BACKGROUND: The Outcomes of Depression International Network (ODIN) trial evaluated the effect of two psychological interventions for the treatment of depression in primary care. Only about half of the patients in the treatment arm complied with the offer of treatment, prompting the question:'what was the effect of treatment in those patients who actually received it?' AIMS: To illustrate the estimation of the effect of receipt of treatment in a randomised controlled trial subject to non-compliance and loss to follow-up. METHOD: We estimated the complier average causal effect (CACE) of treatment. RESULTS: In the ODIN trial the effect of receipt of psychological intervention (an average of about 4 points on the Beck Depression Inventory) is about twice that of offering it. CONCLUSIONS: The statistical analysis of the results of a clinical trial subject to non-compliance to allocated treatment is now reasonably straightforward through estimation of a CACE and investigators should be encouraged to present the results of analyses of this type as a routine component of a trial report.

Data Interpretation, Statistical↗
PubMed2001

Depressive disorders in Europe: prevalence figures from the ODIN study.

BACKGROUND: This is the first report on the epidemiology of depressive disorders from the European Outcome of Depression International Network (ODIN) study. AIMS: To assess the prevalence of depressive disorders in randomly selected samples of the general population in five European countries. METHOD: The study was designed as a cross-sectional two-phase community study using the Beck Depression inventory during Phase 1, and the Schedule for Clinical Assessment in Neuropsychiatry during Phase 2. RESULTS: An analysis of the combined sample (n=8.764) gave an overall prevalence of depressive disorders of 8.56% (95% CI 7.05-10.37). The figures were 10.05% (95% CI 7.80-12.85) for women and 6.61% (95% CI 4.92-8.83) for men. The centres fall into three categories: high prevalence (urban Ireland and urban UK), low prevalence (urban Spain) and medium prevalence (the remaining sites). CONCLUSIONS: Depressive disorder is a highly prevalent condition in Europe. The major finding is the wide difference in the prevalence of depressive disorders found across the study sites.

Adolescent↗
PubMed2000

Problem solving treatment and group psychoeducation for depression: multicentre randomised controlled trial. Outcomes of Depression International Network (ODIN) Group.

OBJECTIVES: To determine the acceptability of two psychological interventions for depressed adults in the community and their effect on caseness, symptoms, and subjective function. DESIGN: A pragmatic multicentre randomised controlled trial, stratified by centre. SETTING: Nine urban and rural communities in Finland, Republic of Ireland, Norway, Spain, and the United Kingdom. PARTICIPANTS: 452 participants aged 18 to 65, identified through a community survey with depressive or adjustment disorders according to the international classification of diseases, 10th revision or Diagnostic and Statistical Manual of Mental Disorders, fourth edition. INTERVENTIONS: Six individual sessions of problem solving treatment (n=128), eight group sessions of the course on prevention of depression (n=108), and controls (n=189). MAIN OUTCOME MEASURES: Completion rates for each intervention, diagnosis of depression, and depressive symptoms and subjective function. RESULTS: 63% of participants assigned to problem solving and 44% assigned to prevention of depression completed their intervention. The proportion of problem solving participants depressed at six months was 17% less than that for controls, giving a number needed to treat of 6; the mean difference in Beck depression inventory score was -2. 63 (95% confidence interval -4.95 to -0.32), and there were significant improvements in SF-36 scores. For depression prevention, the difference in proportions of depressed participants was 14% (number needed to treat of 7); the mean difference in Beck depression inventory score was -1.50 (-4.16 to 1.17), and there were significant improvements in SF-36 scores. Such differences were not observed at 12 months. Neither specific diagnosis nor treatment with antidepressants affected outcome. CONCLUSIONS: When offered to adults with depressive disorders in the community, problem solving treatment was more acceptable than the course on prevention of depression. Both interventions reduced caseness and improved subjective function.

Adolescent↗
PubMed2000

Factors associated with neuropsychological performance in HIV-seropositive subjects without AIDS.

BACKGROUND: Previous research has suggested that several factors may influence the presence of cognitive impairment in human immunodeficiency virus (HIV) infection. The objective of this study was to assess the impact of cognitive reserve capacity and other variables on neuropsychological performance in early HIV infection. METHODS: The neuropsychological performance of 100 HIV-seropositive subjects without AIDS (71 men and 29 women) was compared with that of 63 seronegative controls (51 men and 12 women). Measures included a neuropsychological battery, a medical examination and a psychiatric assessment. Cognitive reserve scores were based on a combination of years in school, a measure of educational achievement, and an estimate of pre-morbid intelligence. RESULTS: HIV-positive subjects had longer reaction time latencies than HIV-negative subjects. Those in the HIV-positive group with low cerebral reserve scores showed the poorest performance on the neuropsychological tests. The prevalence of cognitive impairment was significantly higher in the HIV-positive group (27%) than in the controls (32%). Multiple regression analysis and logistic regression analysis were used to identify factors associated with global neuropsychological performance and cognitive impairment. Older age, lower cerebral reserve scores and not being on zidovudine treatment were associated with lower global neuropsychological scores and with the presence of cognitive impairment. CONCLUSIONS: Our results suggest that although cognitive impairment is not characteristic of early HIV infection, there is a subgroup of subjects who perform more poorly than expected. A lower reserve capacity, older age and not being on zidovudine treatment are factors that lower the threshold for neuropsychological abnormalities in cases of early HIV infection.

Adult↗
PubMed2000

Slowed reaction time in HIV-1-seropositive intravenous drug users without AIDS.

One hundred and fourteen subjects with a history of intravenous drug abuse (65 subjects infected with the human immunodeficiency virus, HIV, and 49 seronegative controls) were evaluated with a reaction time (RT) test which included one measure of simple RT and three measures of complex RT. All seropositive patients were in HIV stages A or B. The multivariate analysis of covariance controlled for age, educational level and Montgomery-Asberg Depression Rating Scale score, showed differences between seropositive subjects and controls: the seropositive group scored slower than the control group on two RT tasks, simple RT and a more complex RT measure. Our results suggest that computerized RT measures may be more sensitive than conventional neuropsychological tests in detecting subtle cognitive and motor retardation in the early stages of HIV infection, thus extending the findings of other studies to the intravenous drug-user population.

AIDS Dementia Complex↗
PubMed1999

Evaluation of thyroid function in lithium-naive bipolar patients.

A high prevalence of thyroid hypofunction has been found in bipolar patients. However, the samples used in previous studies included a high percentage of patients in treatment with lithium and carbamazepine. Since the use of these drugs may explain the high prevalence of thyroid disturbances found in bipolar patients, we designed the present study to assess thyroid function in a sample of bipolar patients who had not been treated previously with lithium or carbamazepine. Patients included in the sample met Research Diagnostic Criteria for bipolar affective disorder. Assessment included determination of serum levels for total tyroxine (T4), total triiodothyronine (T3), and thyrotropin both basally and in response to infusion of 500 mg of Protilerin. The rate of thyroid hypofunction in the total sample (9.2%) was considerably lower than that reported in other studies with bipolar patients undergoing lithium therapy. Five patients (9.2%) showed some thyroid hyperfunction parameter. Our results do not show significant differences in thyroid function indices between long-term and short-term duration of illness, between outpatients and inpatients, between high and low number of episodes, and between rapid- and non-rapid-cycling cases. Comparison between bipolar I and bipolar II patients shows a statistically significant difference in the values of TSH levels, with the bipolar II group having a higher mean value. Our data suggest that thyroid dysfunction is not related to gender, duration of illness, number of episodes, or rapid-cycling course of illness. The higher TRH-stimulated TSH levels in the bipolar II group could be considered a differential biological feature.

Adult↗
PubMed1999

Measuring health status in psychiatric community surveys: internal and external validity of the Spanish version of the SF-36.

The aims of the present study were to determine the acceptability of the Spanish version of the Short Form (SF-36) health survey questionnaire for its use in mental health research on the general population, and to evaluate its internal and external validity, using data obtained from a representative community sample of 1250 adults of working age. The internal consistency of the different dimensions of the questionnaire was high. Concurrent validity was tested by examining its correlation with the 12-item General Health Questionnaire (GHQ-12). Construct validity was determined by studying the extent to which scores on different variables reflected the expected distribution of health status for and between certain groups. Our findings provide strong evidence for the acceptability and validity of the SF-36 when used as part of a community mental health survey.

Adolescent↗
PubMed1999

Emotional distress and occupational burnout in health care professionals serving HIV-infected patients: A comparison with oncology and internal medicine services.

BACKGROUND: The present paper examines the levels of emotional distress and professional burnout among health care professionals working with HIV patients in two different settings, Infectious Disease (ID) Units and a Haemophilia (H) Unit, and compares them with those of professionals working in Oncology (O) or General Internal Medicine (IM) Units, all at public hospitals. METHODS: Cross-sectional anonymous survey assessing their psychological condition, occupational stress, work and social adjustment, and providing information about stressors, supports and coping methods, using the General Health Questionnaire, the Maslach Burnout Inventory, the Modified Social Adjustment Scale, and other self-administered instruments. RESULTS: Perceived stress was higher in both O and IM, and the number of stressful circumstances was especially higher in O. No significant differences in psychological morbidity were found among the groups, with these exceptions: a better status among the H staff, who also showed less overall burnout; emotional exhaustion was lower in both ID and H than in the two other groups; the ID staff showed less personal accomplishment. Using a multiple regression model, a series of variables - including work adjustment, social/leisure adjustment, and having chosen to work in their position - was able to predict outcome. CONCLUSIONS: Our results highlight the presence of substantial levels of emotional distress and work-related difficulties in a significant number of health care workers. The mental health services could play an important role in conducting further research in this field and in providing practical help to deal with staff's difficulties.

Adult↗
PubMed1997

HIV infection in psychiatric patients: an unlinked anonymous study.

BACKGROUND: Recent surveys suggest that psychiatric patients are at increased risk of being infected with HIV, although very little information is available concerning the seroprevalence of HIV infection among this population outside the US. The aim of this study is to determine the seroprevalence of HIV-I among patients admitted to a psychiatric in-patient unit and to gather linked anonymous risk-factor information. METHOD: An unlinked serosurvey was made, using HIV-1 antibody testing of remnant blood specimens collected for routine medical purposes, of patients consecutively admitted to an acute psychiatric unit in Madrid. RESULTS: Blood was obtained from 390 of the 477 eligible patients (81.8%). The prevalence of HIV was 5.1% (20/390). Patients aged between 18 and 39 accounted for 63.4% of the admissions and 75% of the positive results. Of the 29 patients who presented with injecting drug use, 14 were HIV-infected (48.3%; 95% CI 29.4 67.5). Of the 51 patients for whom any risk behaviour was noted on the admission chart, 18 were HIV-infected (35.3%; 95% CI 22.4 49.9). CONCLUSIONS: This study demonstrates that there is a substantial prevalence of HIV infection in psychiatric patients admitted to an acute in-patient unit. History of injecting drug use was strongly associated with seropositivity. Clinicians recognised risk factors for HIV infection in the majority of the HIV-infected cases.

Acute Disease↗
PubMed1994

Open trial of fluvoxamine in the treatment of bulimia nervosa.

Twenty patients suffering from bulimia nervosa received 50-150 mg fluvoxamine daily for a period of 8 weeks. Primary end-points included the Eating Disorders Inventory (EDI), the Severity Index of Bulimic Condition (BINGE), Clinical Global Impression (CGI) scores, and the number of binge eating episodes per week. Other variables assessed included the 17-item Hamilton Depression Scale and adverse experience checklist. Compared with baseline, total EDI scores increased significantly from 137.8 to 155.3 after 8 weeks of fluvoxamine treatment (p < .001); CGI score fell significantly from 3.5 to 2.3 (p < .01) during this period. The mean number of binge eating episodes recorded by patients significantly decreased (p < .001). Further significant improvements in bulimic behavior were noted using the BINGE questionnaire. Nine of 20 patients complained of adverse experiences, all of which were mild; the most common symptoms were somnolence (n = 4) and insomnia (n = 3). Fluvoxamine appears to be a safe and effective treatment for bulimia nervosa.

Adult↗