The aim of this study was to estimate patterns of dental services use in a medium-sized city in southern Brazil. A population-based cross-sectional study was conducted in a sample of 4,226 individuals aged 10 years and older. Poisson regression analysis was used to identify associated factors; 50.9% (95%CI: 49.3-52.4) of the sample had consulted a dentist in the previous year. Dental care attendance rates among adolescents, adults, and elders were 52.2%, 53.6%, and 37.2%, respectively. After adjusting for various confounders, the most important determinants of dental services use were: schooling >or= 9 years, high socioeconomic status, and self-reported oral health problems. In addition, adolescents and adults that rated their oral health as good showed 10% and 40% higher prevalence dental services use, respectively, when compared with those who rated their oral health as bad. Determining the prevalence of dental services use and users' characteristics can help policymakers plan future measures to make dental care available to population groups with low rates of dental services use.

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Resumo ObjetivoDeterminar a prevalência e a distribuição de distress na esfera psicológica na população urbana adulta. Métodos Foram estudadas 3.942 pessoas maiores de 20 anos, do município de Pelotas, RS. Distress foi definido por meio de um indicador de bem-estar, a Escala de Faces, e através da autopercepção de nervosismo. O teste do qui-quadrado foi usado para testar associação com características sociodemográficas. Resultados A prevalência de distress psicológico foi de 14% quando se utilizou a Escala de Faces e de 31,8% para a autopercepção de nervosismo. Conclusões As mulheres, os mais velhos, os mais pobres e os indivíduos de menor escolaridade foram os grupos que apresentaram as prevalências mais altas de distress quando comparados a seus pares. Abstract Objective To determine the prevalence and distribution of psychological distress in an urban

The present results are consistent with the "hygiene hypothesis," according to which early exposure to infections provides protection against asthma. The policy implications of our findings are unclear given that risk factors for asthma protect against serious childhood diseases in developing countries.

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