Incidence of dementia in a population cohort of older people from São Paulo, Brazil.

OBJECTIVES: To estimate the incidence of dementia in a community-dwelling older population from São Paulo city, Brazil. METHODS/DESIGN: This two-phase prospective cohort study evaluated a representative cluster sample of 1370 individuals aged 60 years old and over from three different socioeconomic levels. The community screening phase consisted of a tested combination of cognitive and functional tests administered among the subjects and informants. In the hospital diagnosis phase, the Cambridge Examination was performed; the diagnosis of dementia and dementia subtypes was made according to DSM IV criteria. Incidence rates were expressed in person-years, multiplied by 1000. The risk of developing dementia was calculated using Cox regression. RESULTS: Among 1370 eligible subjects, 678 were accessed, and 489 completed the evaluation. Forty-two subjects were diagnosed with dementia. The incidence rate of dementia and Alzheimer's disease (AD) were 11.2 (95% CI: 8.0-15.1) and 8.9 (95% CI: 6.1-12.5) per 1000 person-years, respectively; there were high age-specific rates of dementia among younger individuals. There was a trend of a higher risk of developing AD for women than for men. Multivariate analysis showed that older age, the presence of diabetes and the presence of amnestic MCI increased the risk of developing dementia. CONCLUSIONS: The age-specific rates in younger individuals were expressively higher than in worldwide studies and supposedly affected by cardiovascular morbidity. The higher risk in women in a younger sample corroborated the interaction between sex and AD. The increased risk of amnestic MCI reinforced its contribution to the progression to dementia and AD.

Doença de Chagas e estrutura social: infestação domiciliar e infecção humana em áreas submetidas a ações de controle / Chagas disease and social structure: house infestation and human infection in areas subjected to control actions

Os estudos sobre a doença de chagas na zona rural no Estado de São Paulo que enfocam a presença de triatomíneos nos domicílios tem enfatizado a partir do final da década de 60 a relevância de especies outrora consideradas secundarias...

High prevalence of dementia in a community-based survey of older people from Brazil: association with intellectual activity rather than education.

Although several surveys have been conducted around the world, few surveys have investigated the prevalence of dementia in Latin America. The aim of this study was to estimate dementia prevalence in a community sample in Ribeirão Preto, Brazil, and to evaluate its distribution across several socio-demographic and clinical characteristics and habits. The population was aged 60 years and older and a representative sample from three different social regions. The screening instruments used in the first phase were the Mini-Mental State Examination, the Fuld Object-Memory Evaluation, the Informant Questionnaire on Cognitive Decline in the Elderly, and the Bayer Activities of Daily Living Scale. In the second phase, the Cambridge Examination was employed to diagnose dementia according to the DSM-IV criteria. The estimate of dementia prevalence was adjusted for screening instrument performance, using the positive and negative predictive values. The data were weighted to compare frequencies, considering the sampling and the non-response effect, and subjected to multivariate analysis. In all, 1.145 elderly subjects were evaluated (mean age: 70.9 years), of whom 63.4% were female and 52.8% had up to 4 years of schooling (participation rates at the first and the second phases were 62.6 and 60%, respectively). The observed and estimated prevalences of dementia were 5.9% and 12.5%, respectively (n = 68). Alzheimer's disease was the main cause (60.3%). Dementia was associated with old age, low education, stroke, absence of arthritis, and not reading books. The estimated prevalence of dementia was higher than the prevalence previously found. Associated factors confirmed the importance of intellectual activities in prevention.

Instrumental activities of daily living performance in healthy and cognitively intact seniors from a Brazilian sample and its relation to age and other socio-demographic variables.

BACKGROUND: Studies on functional capacity in community-dwelling older people have shown associations between declines in instrumental activities of daily living (IADL) and several factors. Among these, age has been the most consistently related to functional capacity independent of other variables. We aimed at evaluating the performance of a sample of healthy and cognitively intact Brazilian older people on activities of daily living and to analyze its relation to social-demographic variables. METHODS: We conducted a secondary analysis of data collected for previous epidemiological studies with community-dwelling subjects aged 60 years or more. We selected subjects who did not have dementia or depression, and with no history of neurological diseases, heart attack, HIV, hepatitis or arthritis (n = 1,111). Functional capacity was assessed using the Brazilian version of the Older American Resources and Services Questionnaire (BOMFAQ). ADL performance was analyzed according to age, gender, education, and marital status (Pearson's χ2, logistic regression). RESULTS: IADL difficulties were present in our sample, especially in subjects aged 80 years or more, with lower levels of education, or widowed. The logistic regression analysis results indicated that "higher age" and "lower education" (p ≤ 0.001) remained significantly associated with IADL difficulty. CONCLUSIONS: Functional decline was present in older subjects even in the absence of medical conditions and cognitive impairment. Clinicians and researchers could benefit from knowing what to expect from older people regarding IADL performance in the absence of medical conditions.

Dificuldades para atividades básicas e instrumentais de vida diária, referidas por usuários de um centro de saúde escola do município de São Paulo / Difficulties with basic and instrumental activities of daily living reported by users of a school health center in São Paulo county

Idosos que atendem a determinados critérios demográficos, sociais e econômicos estão especialmente vulneráveis a adoecimento, incapacidades e morte. Desenvolveu-se estudo com o objetivo de identificar idosos vulneráveis segundo critérios determinados e comparar idosos vulneráveis e não-vulneráveis em relação à necessidade de ajuda para atividades. O estudo, de corte transversal, compreendeu coleta de dados com 190 idosos usuários de um Centro de Saúde Escola, em seus domicílios, entre 2006 e 2008, por meio de aplicação do Instrumento para Classificação de Idosos quanto à Capacidade para o Autocuidado. Cento e quarenta e cinco idosos (80%) estão submetidos a pelo menos um critério de risco; 99 (52,1%) referem uma ou mais dificuldades para atividades básicas, sendo que 29 (29,3%) requerem ajuda; 92 (48,4%) idosos mencionam dificuldades para atividades instrumentais e destes, 67 (72,8%) requerem ajuda. Somente 16 (8,4%) adotam práticas de autocuidado para minimizar suas dificuldades e 38 (20%) as adotam para compensar parte delas. O grupo de idosos que atende pelo menos a um critério de risco apresenta proporção maior de indivíduos que requer ajuda para atividades básicas e instrumentais de vida diária. Outras análises possibilitarão verificar a influência de cada critério sobre a funcionalidade. A realização de pesquisa sobre práticas de autocuidado com um maior número de indivíduos possibilitará comparação entre grupos que empregam ou não essas práticas e critérios de risco. Apesar das limitações do estudo, ele suscita planejamento de ações aos idosos com dificuldades e que requeiram ou não ajuda para suas atividades.

Elderly who match certain demographic, social and economic criteria are especially vulnerable to illness, disability and death. The study was developed in order to both identify vulnerable elderly according to specific criteria and compare vulnerable and non-vulnerable elderly with their need for assistance with activities. This cross-sectional study had its data collected in the household of 190 elderly users of a School Health Center. It took place between 2006 and 2008, through the application of the CICAc Instrument: classification of the aged concerning self-care ability. One hundred and forty-five elderly (80%) were under at least one risk criterion; 99 (52.1%) reported one difficulty or more in basic activities, and 29 (29.3%) of them require assistance; 92 (48.4%) elderly mention difficulties in instrumental activities and 67 (72.8%) require assistance. Only 16 (8.4%) adopt self-care practices to minimize their difficulties and 38 (20%) adopt them to compensate just part of their difficulties. The elderly group that is under at least one risk criterion has a higher proportion of individuals who require assistance with basic and instrumental activities of daily living. Further analysis may verify the influence of each criterion on the functionality. Carrying out research on self-care practices with a larger number of individuals will allow a comparison between groups that make or do not make use of these practices and match risk criteria. Despite the limitations of the study, it gives rise to the planning of interventions for the elderly that have difficulties and need assistance with their activities.

Impact of a program to promote health and quality of life of elderly / Impacto de um programa de promoção da saúde na qualidade de vida do idoso

Objective: To evaluate the effect on quality of life of elderly people enrolled in the Grupo de Assistência Multidisciplinar ao Idoso Ambulatorial (GAMIA) of the Geriatric Service of the Hospital das Clínicas of the Faculdade de Medicina of Universidade de São Paulo. Methods: In 83 elderly participants of group between 2000 and 2002 the quality of life was assessed by the World Health Organization Quality of Life (WHOQOL-bref) at the beginning and the end of the program. Functionality was assessed by the Katz and Lawton scales and socio-demographic data were obtained from medical charts. Results: Females predominated (79.5%) and overall mean age was 69.30 years. Data analysis showed a reduction in the physical domain of WHOQOL-bref (p = 0.014) and increased psychological health and environment domains (p = 0.029 and p = 0.007 respectively), detecting a trend of increase in social relationships and in general domains (p = 0.062 and p = 0.052 respectively). Conclusions: The clinical evaluation of elderly may have the predominant factor for the deterioration of their perception in the physical domain because of the detection of previously unknown diseases and determination of the use of new drugs. Improvement in psychological health and the environment can be related to psychological and social support that the elderly received from peers and professionals and the benefits of group activities, as well as the upward trend observed in the social relationships and general domains. Participation in a program to promote healthy aging was effective in improving the quality of life of the elderly.

Objetivo: Avaliar os efeitos na qualidade de vida de idosos matriculados no Grupo de Assistência Multidisciplinar ao Idoso Ambulatorial (GAMIA) do Serviço de Geriatria do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. Métodos: Nos 83 idosos participantes do grupo entre 2000 e 2002, a qualidade de vida foi avaliada pelo World Health Organization Quality of Life (WHOQOL-bref) no início e no fim do programa. A funcionalidade foi avaliada pelas Escalas de Katz e Lawton e os dados sociodemográficos foram obtidos nos prontuários. Resultados: Houve predomínio do sexo feminino (79,5%) e a média geral de idade foi de 69,30 anos. A análise dos dados mostraram uma redução no domínio físico do WHOQOL-bref (p = 0,014) e a elevação dos domínios psicológico e meio ambiente (p = 0,029 e p = 0,007, respectivamente), detectando-se tendência de elevação nos domínios relações sociais e geral (p = 0,062 e p = 0,052, respectivamente). Conclusões: Como a avaliação clínica desses idosos revelou doenças desconhecidas previamente e determinou a utilização de novos medicamentos, a percepção que os idosos tinham, em relação à sua saúde, pode ter sido o fator preponderante para a piora no domínio físico. A melhora dos domínios psicológico e meio ambiente pode estar relacionada ao suporte psicológico e social que o idoso recebeu dos colegas e profissionais e dos benefícios das atividades em grupo, bem como às tendência de elevação observada nos domínios relações sociais e geral. A participação em um programa de promoção do envelhecimento saudável mostrou-se eficaz na melhora da qualidade de vida do idoso.

Impact of a program to promote health and quality of life of elderly.

OBJECTIVE: To evaluate the effect on quality of life of elderly people enrolled in GAMIA - Multidisciplinary Care Group to Outpatient Elderly Subjects (Grupo de Assistência Multidisciplinar ao Idoso Ambulatorial) of the Geriatric Department, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo. METHODS: Between 2000 and 2002, 83 elderly participants of GAMIA were assessed by the World Health Organization Quality of Life scale (WHOQOL-bref) at the beginning and the end of the program. Functionality was assessed by Katz and Lawton scales and sociodemographic data were obtained from medical charts. RESULTS: Females predominated (79.5%) and overall mean age was 69.30 years. Data analysis showed a reduction in the physical domain of WHOQOL-bref (p = 0.014) and increased psychological health and environment domains (p = 0.029 and p = 0.007, respectively), detecting a trend of increase in social relationships and in general domains (p = 0.062 and p = 0.052, respectively). CONCLUSIONS: The clinical evaluation of the elderly detected previously unknown diseases and determination of the use of new drugs, which might have been the predominant factor for the deterioration of their perception in the physical domain. Improvement in psychological health and the environment can be related to psychological and social support that the elderly received from peers and professionals and the benefits of group activities, as well as the upward trend observed in social relationships and general domains. Participation in a program to promote healthy aging was effective in improving the quality of life of the elderly.

Impact of sociodemographic and health variables on mini-mental state examination in a community-based sample of older people.

The mini-mental state examination (MMSE) has been widely used as a screening instrument for cognitive disorders. Age, schooling and many other sociodemographic and health variables may be associated with a worse performance on the MMSE. The objectives of this study were to investigate the distribution of MMSE percentiles in a large Brazilian community-based elderly sample, divided according to age and schooling, and to evaluate the impact of sociodemographic and health variables on groups of elderly people with lower cognitive performance. The MMSE was applied to a sample of 2,708 adults, aged 60 years and older. Of this population, 1,563 individuals were living in the city of São Paulo, while 1,145 were living in the city of Ribeirão Preto. The subjects were divided into six groups according to the amount of schooling that they had received (no formal education, 1-4 and ≥5 years) and age (<75 and ≥75 years old). To each one of the subgroups a stepwise logistic regression was applied, considering the following dependent variable: subjects who scored under or above the 15th percentile on MMSE. High scores on a depression scale, high scores on a memory complaints scale and low socio-economic levels were associated with poorer performance on the MMSE. Being currently employed and being married were related to higher scores on the test. Many sociodemographic and health variables can influence MMSE performance, with impacts depending on age and schooling. Clinicians and primary care physicians should pay attention to variables that may be associated with worse cognitive performance.

Prevalence of alcohol-related problems in an elderly population and their association with cognitive impairment and dementia.

BACKGROUND: Studies investigating the association between alcohol use and cognitive disorders in the elderly population have produced divergent results. Moreover, the role of alcohol in cognitive dysfunction is not clear. The aims of this study were to estimate the prevalence of alcohol-related problems in an elderly population from Brazil and to investigate their association with cognitive and functional impairment (CFI) and dementia. METHODS: A community-based cross-sectional study was performed. A sample of 1,145 elderly people was examined in 2 phases. Several instruments were utilized in the first phase: the CAGE questionnaire was used to identify potential cases of alcohol-related problems, and a screening test for dementia was used to estimate CFI. The CAMDEX interview (Cambridge Examination) and DSM-IV (Diagnostic and Statistical Manual of Mental Disorders, 4th edition) criteria were used for the clinical diagnosis of dementia in the second phase. RESULTS: "Heavy alcohol use" (CAGE > or = 2) was found in 92 subjects (prevalence: 8.2%). It was associated with gender (males, p < 0.001), low education (only in females, p = 0.002), and low socioeconomic level (p = 0.001, in females; p = 0.002, in males). The Mini Mental State Examination exhibited a nonlinear relationship with alcohol-related problems in females; "mild-moderate alcohol use" (CAGE < 2) presented the highest score. A significant association between alcohol-related problems and cognitive dysfunction was found only in females. "Heavy alcohol use" was associated with higher CFI and dementia rates compared to "mild-moderate alcohol use" (p = 0.003 and p < 0.001, respectively). "Mild-moderate alcohol use" had a tendency of association with lower CFI and dementia rates when compared to "no alcohol use" (p = 0.063 and 0.050, respectively). CONCLUSION: Our findings suggest that alcohol use does not have a linear relationship with cognitive decline.

Prevalence and correlates of alcoholism in community-dwelling elderly living in São Paulo, Brazil.

OBJECTIVES: To assess the prevalence of alcoholism in elderly living in the city of São Paulo (Brazil) and investigate associated risk factors. METHODS: A total of 1,563 individuals aged 60 years or older, of both genders of three districts of different socioeconomic classes (high, medium and low) in the city of São Paulo (Brazil) were interviewed. The CAGE screening test for alcoholism was applied and a structured interview was used to assess associated sociodemographic and clinical factors. The tests Mini Mental State Examination, Fuld Object Memory Evaluation, The Informant Questionnaire on Cognitive Decline in the Elderly and Bayer-Activities of Daily Living Scale were used for cognitive and functional assessment. RESULTS: Prevalence of alcoholism was 9.1%. Multivariate regression analysis showed that alcoholism was associated with male gender, 'mulatto' ethnicity, smoking, and cognitive and functional impairment. In addition, the younger the individual and the lower the schooling level, the higher the risk for alcoholism. CONCLUSIONS: The results obtained in this study show that alcoholism is highly frequent in the community-dwelling elderly living in São Paulo, and that it is associated with socio-demographic and clinical risk factors similar to those reported in the literature. This suggests that alcoholism in the elderly of a developing country shares the same basic characteristics seen in developed countries. These findings suggest that it is essential for health services and professional to be prepared to meet this demand that will significantly grow in the next years, especially in developing countries, where the rates of population aging are higher than those of developed countries.

Clinically significant depressive symptoms and associated factors in community elderly subjects from Sao Paulo, Brazil.

OBJECTIVES: To determine the frequency of clinically significant depressive symptoms (CSDS) in a community sample of Brazilian elderly and to assess their relationship with sociodemographic factors, cognitive and functional impairment (CFI), and clinical diseases. DESIGN: Cross-sectional study of a community-based sample of elderly subjects. SETTING: City of Sao Paulo, State of Sao Paulo, Brazil. PARTICIPANTS: A total of 1,563 elderly subjects aged 60 years or older. MEASUREMENTS: A 10-item scale for screening of depressive symptoms in elderly people (D-10), the Mini Mental State Examination, the Fuld Object Memory Evaluation, the Informant Questionnaire on Cognitive Decline in the Elderly, the Bayer Activities of Daily Living Scale, and a sociodemographic and clinical questionnaire. RESULTS: The frequency of CSDS was 13.0%. Univariate analysis identified independent factors associated with these symptoms in our sample. Logistic regression analysis indicated that being female, brown skinned, previously depressed, having CFI, using psychotropics, and not practicing physical exercise were related to CSDS. On the other hand, being older, clinically sick, employed, or married were not associated with CSDS. CONCLUSIONS: : Consistent with previous reports, female gender, lack of physical activity, and CFI were significantly associated with higher frequencies of CSDS. Further investigations are necessary to clarify the occurrence of depression and possible modifiable factors in developing countries such as Brazil.

Combined instruments for the screening of dementia in older people with low education.

OBJECTIVE: To determine which combination of cognitive tests and informant reports can improve the diagnostic accuracy of dementia screening in low educated older people. METHOD: Patients with mild to moderate dementia (n=34) according to ICD-10 and DSM-III-R criteria and 59 older controls were assessed with the Mini-Mental State Examination (MMSE) and the Fuld Object Memory Evaluation (FOME). Informants were assessed using the Informant Questionnaire on Cognitive Decline in the Elderly and the Bayer-Activities of Daily Living Scale. RESULTS: The 4 instruments combined with the mixed rule correctly classified 100% and the logistic regression (weighted sum) classified 95.7% of subjects. The weighted sum had a significantly larger ROC area compared to MMSE (p=0.008) and FOME (p=0.023). The specificity of the tested combinations was superior to the MMSE alone (p=0.002). CONCLUSIONS: Cognitive tests combined with informant reports can improve the screening of mild to moderate dementia in low educated older people.

Combined instruments for the screening of dementia in older people with low Education / Instrumentos combinados para o rastreio de demência em idosos com baixo nível educacional

OBJECTIVE: To determine which combination of cognitive tests and informant reports can improve the diagnostic accuracy of dementia screening in low educated older people. METHOD: Patients with mild to moderate dementia (n=34) according to ICD-10 and DSM-III-R criteria and 59 older controls were assessed with the Mini-Mental State Examination (MMSE) and the Fuld Object Memory Evaluation (FOME). Informants were assessed using the Informant Questionnaire on Cognitive Decline in the Elderly and the Bayer-Activities of Daily Living Scale. RESULTS: The 4 instruments combined with the mixed rule correctly classified 100 percent and the logistic regression (weighted sum) classified 95.7 percent of subjects. The weighted sum had a significantly larger ROC area compared to MMSE (p=0.008) and FOME (p=0.023). The specificity of the tested combinations was superior to the MMSE alone (p=0.002). CONCLUSIONS: Cognitive tests combined with informant reports can improve the screening of mild to moderate dementia in low educated older people.

OBJETIVO: Determinar qual combinação de testes cognitivos e avaliações do informante pode melhorar o rastreio de demência em idosos com baixo nível educacional. MÉTODO: Pacientes com demência leve a moderada (n=34) de acordo com critérios da CID-10 e DSM-III-R, e 59 controles idosos foram avaliados com o Mini-Exame do Estado Mental (MEEM) e com o "Fuld Object Memory Evaluation" (FOME). Informantes foram avaliados com o "Informant Questionnaire on Cognitive Decline in the Elderly" e a escala Bayer-Atividades da Vida Diária. RESULTADOS: Os quatro instrumentos combinados com a regra mista classificaram 100 por cento e a regressão logística (soma ponderada) classificou 95,7 por cento dos sujeitos. A soma ponderada teve uma área da curva ROC significativamente maior comparada ao MEEM (p=0,008) e FOME (p=0,023). A especificidade das combinações testadas foi superior ao MEEM isolado (p=0,002). CONCLUSÕES: Testes cognitivos combinados com relatos dos informantes podem melhorar o rastreio de demência leve a moderada em idosos com baixo nível educacional.

Performance of Brazilian long and short IQCODE on the screening of dementia in elderly people with low education.

BACKGROUND: Dementia screening in elderly people with low education can be difficult to implement. For these subjects, informant reports using the long (L) (26 items) and short (C) (16 items) versions of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) can be useful. The objective of the present study was to investigate the performance of Brazilian versions of the IQCODE L, S and a new short version (SBr) (15 items) in comparison with the Mini-mental State Examination (MMSE) for dementia screening in elderly people with low education. METHODS: Thirty-four patients with mild to moderate dementia, diagnosed according to ICD-10 criteria, and 57 controls were evaluated and divided into three groups based on their socioeconomic status and level of education. Patients were evaluated using the MMSE and the informants were interviewed using the IQCODE by interviewers blind to the clinical diagnosis. RESULTS: Education was correlated with MMSE results (r = 0.280, p = 0.031), but not with the versions of the IQCODE. The performance of the instruments, evaluated by the ROC curves, was very similar, with good internal consistency (Cronbach's alpha = 0.97). MMSE correctly classified 85.7% of the subjects while the three IQCODE versions (L, S and SBr) correctly classified 91.2% of the subjects. CONCLUSIONS: The long, short and the new short Brazilian IQCODE versions can be useful as a screening tool for mild and moderate patients with dementia in Brazil. The IQCODE is not biased by schooling, and it seems to be an adequate instrument for samples with low levels of education.

Comparison of carbamazepine and lithium in treatment of bipolar disorder: a systematic review of randomized controlled trials.

OBJECTIVES: To review data from randomized controlled trials (RCTs) assessing the comparative efficacy of carbamazepine and lithium in treatment of acute manic and maintenance phase of bipolar disorder (BD). DESIGN: RCTs were identified through a search strategy that included: electronic databases, reference cross-checking, hand search of non-indexed publications, and book chapters on the treatment of BD comparing carbamazepine with lithium. Outcomes investigated were antimanic effect, trial withdrawal, relapse, hospitalization, need for rescue medication, and presence of adverse effects. Selection of studies and data analysis were performed independently by authors. Whenever possible, data from trials were combined through meta-analyses. Relative risks (RR) were estimated for dichotomous data. RESULTS: In acute mania, carbamazepine was similar to lithium on the following outcomes: trial withdrawal due to adverse effects, number of participants with at least one adverse effect, improvement in the Clinical Global Impression (CGI). In acute mania, carbamazepine was associated with fewer trial withdrawals. In maintenance treatment, carbamazepine was similar to lithium in relapses and hospitalization, but there were fewer trial withdrawals due to adverse effects on lithium. CONCLUSION: This review suggests that carbamazepine might be comparable to lithium in terms of efficacy and safety, and therefore a valuable option in the treatment of both manic and maintenance phases.

Estimate of dementia prevalence in a community sample from São Paulo, Brazil.

AIMS: To estimate dementia prevalence and describe the etiology of dementia in a community sample from the city of São Paulo, Brazil. METHODS: A sample of subjects older than 60 years was screened for dementia in the first phase. During the second phase, the diagnostic workup included a structured interview, physical and neurological examination, laboratory exams, a brain scan, and DSM-IV criteria diagnosis. RESULTS: Mean age was 71.5 years (n = 1,563) and 58.3% had up to 4 years of schooling (68.7% female). Dementia was diagnosed in 107 subjects with an observed prevalence of 6.8%. The estimate of dementia prevalence was 12.9%, considering design effect, nonresponse during the community phase, and positive and negative predictive values. Alzheimer's disease was the most frequent cause of dementia (59.8%), followed by vascular dementia (15.9%). Older age and illiteracy were significantly associated with dementia. CONCLUSIONS: The estimate of dementia prevalence was higher than previously reported in Brazil, with Alzheimer's disease and vascular dementia being the most frequent causes of dementia. Dementia prevalence in Brazil and in other Latin American countries should be addressed by additional studies to confirm these higher dementia rates which might have a sizable impact on countries' health services.

Cost-effectiveness analysis of the analgesic therapy of postoperative pain.

The study aimed to compare cost-effectiveness of analgesic schemes administered to 89 patients submitted to hemorrhoidectomy, on the 1st postoperative day. The descriptive and retrospective study was carried out in a General Hospital, Sao Paulo, Brazil. In order to carry out the cost-effectiveness analysis, the five most frequently used analgesic schemes were identified in practice. The main outcome was the absence of breakthrough pain episodes. While calculating the costs, analgesics and all devices related to the schemes were taken into consideration. Codeine 120 mg+acetaminophen 2000 mg was the most effective therapy with the lowest cost per patient with no breakthrough pain episodes ($65.23). Incremental analysis indicated that codeine 120 mg+acetaminophen 2000 mg+ketoprofen 200 mg involved the additional cost of $238.31 in case an extra effectiveness benefit was needed. The analysis showed that the most suitable choice of analgesic therapy should consider the resources available at the institution along with economic and clinical aspects.

Development of Elderly Quality of Life Index--EqoLI: item reduction and distribution into dimensions.

OBJECTIVE: To describe item reduction and its distribution into dimensions in the construction process of a quality of life evaluation instrument for the elderly. METHODS: The sampling method was chosen by convenience through quotas, with selection of elderly subjects from four programs to achieve heterogeneity in the "health status", "functional capacity", "gender", and "age" variables. The Clinical Impact Method was used, consisting of the spontaneous and elicited selection by the respondents of relevant items to the construct Quality of Life in Old Age from a previously elaborated item pool. The respondents rated each items importance using a 5-point Likert scale. The product of the proportion of elderly selecting the item as relevant (frequency) and the mean importance score they attributed to it (importance) represented the overall impact of that item in their quality of life (impact). The items were ordered according to their impact scores and the top 46 scoring items were grouped in dimensions by three experts. A review of the negative items was performed. RESULTS: One hundred and ninety three people (122 women and 71 men) were interviewed. Experts distributed the 46 items into eight dimensions. Closely related items were grouped and dimensions not reaching the minimum expected number of items received additional items resulting in eight dimensions and 43 items. DISCUSSION: The sample was heterogeneous and similar to what was expected. The dimensions and items demonstrated the multidimensionality of the construct. The Clinical Impact Method was appropriate to construct the instrument, which was named Elderly Quality of Life Index--EQoLI. An accuracy process will be examined in the future.

Cost-effectiveness analysis of the analgesic therapy of postoperative pain / Análise custo-efetividade da terapia analgésica utilizada na dor pós-operatória / Análisis de costo-efectividad en el tratamiento analgésico para dolor post-operatorio

The study aimed to compare cost-effectiveness of analgesic schemes administered to 89 patients submitted to hemorrhoidectomy, on the 1st postoperative day. The descriptive and retrospective study was carried out in a General Hospital, Sao Paulo, Brazil. In order to carry out the cost-effectiveness analysis, the five most frequently used analgesic schemes were identified in practice. The main outcome was the absence of breakthrough pain episodes. While calculating the costs, analgesics and all devices related to the schemes were taken into consideration. Codeine 120mg+acetaminophen 2000mg was the most effective therapy with the lowest cost per patient with no breakthrough pain episodes ($65.23). Incremental analysis indicated that codeine 120mg+acetaminophen 2000mg+ketoprofen 200mg involved the additional cost of $238.31 in case an extra effectiveness benefit was needed. The analysis showed that the most suitable choice of analgesic therapy should consider the resources available at the institution along with economic and clinical aspects.

El presente estudio utilizó el análisis de costo-efectividad para comparar los esquemas analgésicos administrados en 89 pacientes sometidos a hemorroidectomía, durante el 1º día del post-operatorio. Estudio descriptivo y retrospectivo realizado en el Hospital General de São Paulo. Para efectuar este análisis se identificaron los 5 esquemas analgésicos más utilizados por el servicio. El efecto principal fue la ausencia de dolor. Para calcular los costos fueron incluidos los analgésicos y los materiales utilizados para la administración. El esquema codeína 120mg + acetaminofen 2000mg fue más efectivo, siendo de menor costo para el paciente sin dolor ($65,23). Este incremento mostró que la mezcla codeína 120 mg+acetamenofen 2000mg+ cetoprofeno 200mg tuvo un costo adicional de $238,31 para poder obtener un beneficio extra de efectividad. A través del análisis, la selección del esquema analgésico requiere además de ser económico y clínico, la disponibilidad de recursos de la propia institución.

No presente estudo realizou-se a analise custo-efetividade para comparar esquemas analgésicos administrados a 89 pacientes submetidos a hemorroidectomia, no 1º dia de pós-operatório. Trata-se de um estudo descritivo e retrospectivo realizado em Hospital Geral de São Paulo. Para realização da análise custo-efetividade identificou-se os 5 esquemas analgésicos mais utilizados na clinica. O principal desfecho foi ausência de escapes de dor. No cálculo dos custos foram considerados os analgésicos e dispositivos associados à administração. O esquema codeina 120mg + acetaminofeno 2000mg mostrou-se mais custo-efetivo, apresentando o menor custo por paciente sem escape de dor ($65,23). A análise incremental apontou que o padrão codeína 120 mg+acetamenofeno 2000mg+ cetoprofeno 200mg apresentou um custo adicional de $238,31 para se obter um benefício extra de efetividade. A análise mostrou que a escolha do esquema analgésico deve contemplar, além dos aspectos econômicos e clínicos das opções terapêuticas, a disponibilidade de recursos da instituição.