Vulnerabilidade social e incidência de COVID-19 em uma metrópole brasileira / Social vulnerability and COVID-19 incidence in a Brazilian metropolis

Resumo A vulnerabilidade é um fator chave no enfrentamento da COVID-19 tendo em vista que pode influenciar no agravamento da doença. Desse modo, ela deve ser considerada no controle da COVID-19, prevenção e promoção da saúde. O objetivo deste artigo é analisar a distribuição espacial da incidência de casos de COVID-19 em uma metrópole brasileira e sua associação com indicadores de vulnerabilidade social. Estudo ecológico. Foi utilizada a análise de varredura espacial (scan) para identificar aglomerados de COVID-19. As variáveis para identificação da vulnerabilidade foram inseridas em um modelo de Regressão Espacial Geograficamente Ponderado (GWR) para identificar sua relação espacial com os casos de COVID-19. A incidência de COVID-19 em Fortaleza foi de 74,52/10 mil habitantes, com notificação de 3.554 casos, sendo pelo menos um caso registrado em cada bairro. A regressão espacial GWR mostrou relação negativa entre incidência de COVID-19 e densidade demográfica (β=-0,0002) e relação positiva entre incidência de COVID-19 e percentual de ocupados >18 anos trabalhadores autônomos (β=1,40), assim como, renda domiciliar per capita máxima do quinto mais pobre (β=0,04). A influência dos indicadores de vulnerabilidade sobre a incidência evidenciou áreas que podem ser alvo de políticas públicas a fim de impactar na incidência de COVID-19.

Abstract Vulnerability is a crucial factor in addressing COVID-19 as it can aggravate the disease. Thus, it should be considered in COVID-19 control and health prevention and promotion. This ecological study aimed to analyze the spatial distribution of the incidence of COVID-19 cases in a Brazilian metropolis and its association with social vulnerability indicators. Spatial scan analysis was used to identify COVID-19 clusters. The variables for identifying the vulnerability were inserted in a Geographically Weighted Regression (GWR) model to identify their spatial relationship with COVID-19 cases. The incidence of COVID-19 in Fortaleza was 74.52/10,000 inhabitants, with 3,554 reported cases and at least one case registered in each neighborhood. The spatial GWR showed a negative relationship between the incidence of COVID-19 and demographic density (β=-0,0002) and a positive relationship between the incidence of COVID-19 and the percentage of self-employed >18 years (β=1.40), and maximum per capita household income of the poorest fifth (β=0.04). The influence of vulnerability indicators on incidence showed areas that can be the target of public policies to impact the incidence of COVID-19.

Prevalence of permanent tooth loss among children and adults in a suburban area of Chennai.

Aim: To determine the prevalence of permanent tooth loss among children and adults in a suburban area of Chennai. Design: Cross sectional descriptive study. Study setting: The study was conducted in Tiruverkadu, a suburban area of Chennai. Materials and Methods: A house-to-house survey was done in Tiruverkadu. The study population consisted of 6, 12, 15 years children, 35-44 years, and 65-74 years adults. Type III dental examination was carried out. Cross tabulations and Chi-square statistics were computed. The level of significance was chosen as P<0.05. Results: Out of the total 679 subjects, 309 subjects had tooth loss. Females (47.9%) had greater tooth loss compared to males (42.9%). Tooth loss increased as age progressed. Subjects in the lower socio-economic status had greatest tooth loss. The mean tooth loss among the subjects was 2.7. Conclusion: This study indicates that tooth loss increases with age and differs for gender and socio-economic status. The prevalence of tooth loss among the subjects was found to be high in children as well as in adults. Therefore, dental professionals should utilize various measures available in preventive dentistry to minimize tooth loss.

Avaliação da notificação no Distrito Federal de casos de tuberculose residentes em dez municípios goianos do entorno e análise da incidência de tuberculose nestas localidades / Evaluation of tuberculosis cases occurring in ten outlying cities and reported in the Entorno region of the state of Goiás and reported in the neighboring Federal District: analysis of the incidence of tuberculosis in those cites

OBJETIVO: Avaliar a notificação, no Distrito Federal (DF), de casos de tuberculose em residentes nos municípios goianos da região do Entorno e possíveis influências no Plano de Controle da Tuberculose; analisar a taxa de incidência da tuberculose nos municípios e a interferência da situação socioeconômica e das características demográficas sobre esta taxa. MÉTODO: Analisaram-se dados relativos à incidência de tuberculose, taxas de cura, abandono, falência de tratamento, óbito, transferência e informações socioeconômicas e demográficas de dez municípios goianos. RESULTADOS: No período de 2000 a 2004, foram notificados 714 casos novos de tuberculose em residentes nos municípios estudados, sendo que 436 (61,0 por cento) foram atendidos no DF, não sendo registrados no Sistema de Informação de Goiás. Considerando-se os casos atendidos somente em Goiás, a média de incidência de tuberculose do grupo variou de 4,40 a 10,02/100.000 habitantes; somando-se os atendidos no DF, a incidência aumentou significativamente, variando de 15,16 a 20,54/100.000 habitantes (p < 0,001). A taxa de contatos examinados foi baixa e os resultados de tratamento insatisfatórios, tanto em Goiás como no DF. Os dados socioeconômicos e demográficos foram compatíveis com as taxas de incidência. CONCLUSÃO: O número de casos de tuberculose atendidos pelos próprios municípios foi abaixo do esperado e o atendimento fora do município de residência pode comprometer o controle da tuberculose. A incidência de tuberculose recalculada é compatível com o perfil socioeconômico e demográfico da região. Um sistema de vigilância com base territorial pode ter sua eficiência otimizada, melhor contribuindo para o controle da enfermidade.

OBJECTIVE: To evaluate tuberculosis cases occurring in the greater metropolitan area of the Distrito Federal (MADF, encompassing the Federal District, i.e., the national capital of Brasília, located in the state of Goiás) but reported in Brasília itself and to analyze the influence that this has on the effectiveness of the tuberculosis control program, as well as on the collection of socioeconomic and demographic data related to tuberculosis incidence rates. METHODS: Rates of tuberculosis incidence, cure, noncompliance, treatment failure, mortality, and referral, as well as socioeconomic and demographic data, were reviewed for patients from ten MADF cities. RESULTS: From 2000 to 2004, 714 new cases of tuberculosis were reported in the cities studied, 436 (61 percent) of which were treated in Brasília and were therefore not included in the Goiás database. Among patients treated only in the MADF cities studied, the mean incidence of tuberculosis ranged from 4.40 to 10.02/100,000 inhabitants. When those treated in Brasília were included, the incidence significantly increased, ranging from 15.16 to 20.54/100,000 inhabitants (p < 0.001). The rate at which contacts of tuberculosis patients were investigated was low, and treatment outcomes were unsatisfactory in the MADF cities studied and in Brasília. Socioeconomic and demographic data were consistent with the tuberculosis incidence. CONCLUSION: The number of tuberculosis patients treated in the city in which they resided was lower than expected. Treatment in another city might impair tuberculosis control. The recalculated tuberculosis incidence is consistent with the socioeconomic and demographic profile of the region. A federal surveillance system could be efficiently optimized, improving the control of this disease.

Fatores associados ao óbito por tuberculose na zona leste da cidade de São Paulo, 2001 / Factors associated with death by tuberculosis in the eastern part of São Paulo city, 2001

OBJETIVO: Identificar os fatores mais associados à evolução para óbito por tuberculose (TB), comparando casos de TB que evoluíram para óbito com os que evoluíram para cura, entre os casos notificados em 2001, nas subprefeituras de Cidade Tiradentes, Guaianazes, Itaquera e São Mateus, na zona leste do município de São Paulo. MÉTODOS: Foram investigados todos os óbitos (n = 48) que tiveram como causa básica TB, com análise do prontuário hospitalar e posterior visita domiciliar com entrevista do(s) cuidador(es). Paralelamente, investigaram-se 96 casos de TB que tiveram alta cura. Em ambos os grupos, foram excluídos pacientes portadores de HIV. RESULTADOS: A distribuição dos casos curados e óbitos de TB foi igual em ambos os grupos para forma clínica da TB, confirmação laboratorial do diagnóstico e tipo de tratamento. Os casos de óbito tiveram associação estatisticamente significante com sexo masculino, idade maior que 50 anos, escolaridade menor que 3 anos, alcoolismo e desemprego. A regressão logística mostrou que as variáveis de maior significância para evolução para óbito foram: alcoolismo e idade maior que 50 anos, enquanto ser virgem de tratamento e ter ocupação foram fatores de proteção. A associação de alcoolismo, desemprego e idade superior a 50 anos em um mesmo paciente aumentou 25 vezes a chance de evoluir para óbito (IC95 por cento: 6,4397,20). CONCLUSÃO: O treinamento continuado das equipes de saúde, também em nível hospitalar, com prontidão nas ações de vigilância epidemiológica e um adequado funcionamento do sistema de referência/contra-referência em muito melhorarão os indicadores da doença.

OBJECTIVE: To identify factors associated with death from TB, evaluating TB cases reported for 2001 in the city of São Paulo (specifically in the neighborhoods of Cidade Tiradentes, Guaianazes, Itaquera and São Mateus) and comparing those evolving to death with those evolving to cure. METHODS: We investigated all deaths in which TB was given as the principal cause (n = 48), analyzing medical charts and conducting home visits to interview the caregiver(s). In parallel, we investigated 96 TB cases in which the patient had been discharged after a cure had been achieved. Patients with HIV were excluded from both groups. RESULTS: There were no differences between the two groups in terms of the clinical form of tuberculosis, laboratory test confirmation of the diagnosis and type of treatment. Death from TB was found to be associated, in a statistically significant manner, with being male, being over 50 years of age, having had less than 3 years of schooling, suffering from alcoholism and being unemployed. The logistic regression showed that the variables presenting the strongest associations with death from TB were suffering from alcoholism and being over 50, whereas being a new treatment and being employed were found to be protective. The combination of suffering from alcoholism, being unemployed and being over 50 increased the chance of evolving to death by 25 times (95 percentCI: 6.43-97.20). CONCLUSION: Ongoing education of health professionals, prompt epidemiological interventions and efficient patient referral systems could improve the indices related to this disease.

Intestinal parasitic infections in schoolchildren in a suburban area of Hanoi, Vietnam.

An epidemiological study on intestinal parasitic infections among schoolchildren in a suburban area of Hanoi, Vietnam, was conducted. Of the 217 schoolchildren involved in this study, 166 (76%) were positive for at least one of nine species of parasite (six helminths and three protozoa). Among the helminth parasites, Trichuris trichiura (67%) was detected the most frequently followed by Ascaris lumbricoides (34%) and hookworm (3%). In the case of protozoan parasites, Entamoeba coli (8%) was the most frequently detected followed by E. histolytica (2%). No Cryptosporidium parvum or Cyclospora sp were found. A questionnaire survey revealed that there was no positive relationship between parasite infection and the children's school records, educational background or parental income, which have been known to play a role.

[Prevalence of contraceptive use in a periurban area of Sousse, Tunisia]

A contraceptive prevalence survey was conducted among 1277 women of reproductive age, to explore knowledge of and attitudes to contraceptive use and study factors influencing contraceptive use. We found that family planning methods were generally well known. The prevalence of modern contraceptive use was 53.6%, IUDs being the most commonly used followed by sterilization and pills. The public sector was the main source for obtaining contraceptives although pills and condoms tended to be obtained from the private sector. There was a significant correlation between contraceptive use and urban residence

Epidemiological and entomological investigation in dengue outbreak area of Ahmedabad district.

Epidemiological and Entomological investigations conducted in seven affected villages of Sanand and Viramgam Talukas of Ahmedabad district revealed that all age groups and both the genders were affected. 33.33% blood samples of patients showed seropositivity suggesting dengue infection Similarly, Dengue virus antigen was detected in 7 Females Ae. aegypti out of 2 Males and 26 Females tested by indirect immunofluroscent technique. Aedes aegypti population measured by various parameters i.e. Premise index (32.16%), Receptacle index (26.15%) and infested receptacle index (0.36%) were above the critical limit. Aedes aegypti population is susceptible to 5% Malathion. The findings suggest the fever outbreak was of dengue. Co-related evidences indicated the possible role of dengue 2 virus in the outbreak.

Control of parasitic infections among school children in the peri-urban area of Botucatu, Säo Paulo, Brazil

The prevalence of intestinal parasitosis was investigated in a primary school located in Rubiäo Júnior, a peri-urban district of Botucatu, Säo Paulo state, Brazil, in order to assess the effect of treatment and practical measures of prophylaxis in the control of parasitic infections among 7-to-18-year-old school children of a low socio-economic status. The first series of parasitological examinations included 219 school children, of which 123 (56.1 per cent) were found to be infected with one or more parasite species. Eighty-four children carrying pathogenic parasites were submitted to various anti-parasitic treatment schedules. We re-evaluated 75 (89 per cent) students after 4 to 6 months post-chemotherapy. The results indicate that the combination of treatment with prophylactic measures has been successful in the control of parasitic infections, since reinfection rates were generally low (< or = 5.3 per cent), except for Giardia lamblia infections (18.6 per cent), and a marked reduction on the prevalence rates was observed with a significant percentage of cure (> or = 73.1 per cent) in children infected with most parasite species. The reasons for the apparent failure in the control of infections caused by Hymenolepis nana and Strongyloides stercoralis are discussed.