ABSTRACT
BACKGROUND: In Brazil, schistosomiasis mansoni cases still occur, even in non-endemic areas. This study aimed to evaluate schistosomiasis mansoni cases and to delimit water collections investigated for infested planorbidae in São Carlos, São Paulo, Brazil. METHODS: A cross-sectional descriptive study and spatial analysis of schistosomiasis mansoni cases notified in the city from January 2005 to December 2017 was conducted. The study used geographical information system software to map residential and leisure exposures to water courses and bodies and related them to planorbidae surveys of São Paulo state. RESULTS: During the study period, 32 cases were notified. The main forms were intestinal and hepatosplenic. Twenty-eight cases were allochthonous, two autochthonous and two indeterminate. Eleven patients (33.3%) had contact with water collections in São Carlos, mainly the 29 and Broa reservoirs. Three of them had contact only with water collections in the region. A third of cases lived in the Água Fria and Água Quente microbasins, highly impacted by the presence of domestic sewage, and the whole region seems to be colonized by Biomphalaria tenagophila. CONCLUSIONS: The resolution of anthropogenic contamination of water bodies is crucial for controlling schistosomiasis mansoni autochthony in São Carlos.
Subject(s)
Schistosomiasis mansoni , Animals , Humans , Schistosomiasis mansoni/epidemiology , Schistosoma mansoni , Brazil/epidemiology , Cross-Sectional Studies , WaterABSTRACT
OBJECTIVE: This cross-sectional study sought to conduct a spatially analysis of the distribution of dental caries and the nutritional status (NS) of 5-year-old preschool children of public schools in the city of Araraquara, São Paulo, Brazil. METHODS: The sample was selected in a stratified probabilistic manner. A dental examination was conducted to investigate the dmft index. The anthropometric indicators of the weight/height (W/H), height/age (H/A), weight/age (W/A) and body mass index (BMI) were calculated to estimate the NS. A descriptive statistical analysis was conducted and a thematic map was created. At the end of the study 491 children had full address codification. A GPS device was used to ascertain the geographic reference points. A pluri-directional semi-variogram was elaborated. RESULTS: It was revealed that both variables presented a pure nugget effect showing the absence of a spatial correlation, in other words the dmft and nutritional status are not regionalized variables, and their values do not reveal direct spatial dependence. CONCLUSIONS: Dental caries and nutritional status are health conditions that do not reveal spatial dependence. Ultimately, the combination of these indicators with others can produce spatial dependence effects.
Subject(s)
Dental Caries/epidemiology , Nutritional Status , Brazil/epidemiology , Child, Preschool , Cross-Sectional Studies , Female , Humans , Infant , MaleABSTRACT
OBJECTIVE: This cross-sectional study sought to conduct a spatially analysis of the distribution of dental caries and the nutritional status (NS) of 5-year-old preschool children of public schools in the city of Araraquara, São Paulo, Brazil. METHODS: The sample was selected in a stratified probabilistic manner. A dental examination was conducted to investigate the dmft index. The anthropometric indicators of the weight/height (W/H), height/age (H/A), weight/age (W/A) and body mass index (BMI) were calculated to estimate the NS. A descriptive statistical analysis was conducted and a thematic map was created. At the end of the study 491 children had full address codification. A GPS device was used to ascertain the geographic reference points. A pluri-directional semi-variogram was elaborated. RESULTS: It was revealed that both variables presented a pure nugget effect showing the absence of a spatial correlation, in other words the dmft and nutritional status are not regionalized variables, and their values do not reveal direct spatial dependence. CONCLUSIONS: Dental caries and nutritional status are health conditions that do not reveal spatial dependence. Ultimately, the combination of these indicators with others can produce spatial dependence effects.
OBJETIVO: analisar espacialmente a distribuição da cárie dentária e do estado nutricional (EN) de pré-escolares, de 5 anos de idade do município de Araraquara, SP. MÉTODOS: Trata-se de estudo transversal com delineamento amostral probabilístico estratificado. Realizou-se exame clínico bucal para investigação do Índice ceod. Indicadores de peso para altura (P/A), altura para idade (A/I), peso para idade (P/I) e Índice de Massa Corpórea (IMC) foram calculados para classificação do EN. Realizou-se análise estatística descritiva e confeccionou-se mapa temático. Ao final do estudo 491 crianças possuíam codificação completa de endereço. A captura dos pontos de referencial geográfico foi realizada com o auxílio de aparelho de GPS. Elaborou-se semivariograma omini-direcional. RESULTADOS: Observa-se que ambas variáveis apresentaram efeito pepita puro, ou seja, os valores da semi-variância oscila em torno da variância dos dados. Isso implica que as variáveis não são regionalizadas, sendo assim, seus valores não possuem dependência espacial direta. CONCLUSÃO: Cárie dentaria e estado nutricional são condições que não apresentam dependência espacial. Eventualmente a combinação destes indicadores com outros pode produzir efeitos de dependência espacial.
