J. L. Bastos

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OBJECTIVES The aim of this study was to estimate toothache prevalence and associated factors among adult residents in Pelotas, a southern Brazilian city. METHODS A cross-sectional population-based study was carried out in individuals aged > or = 20 years (n = 3353). A multi-stage sampling scheme was adopted, and data collection was performed at(More)
The literature addressing the use of the race variable to study causes of racial inequities in health is characterized by a dense discussion on the pitfalls in interpreting statistical associations as causal relationships. In contrast, fewer studies have addressed the use of racial discrimination scales to estimate discrimination effects on health, and none(More)
The relationship between blood pressure and discrimination has been recently investigated, and there are conflicting debates in literature devoted to the topic. The objective of this study was to update previous literature reviews on discrimination and blood pressure. A bibliographic search was conducted in PubMed between January/2000 and December/2010,(More)
This study estimated the lifetime prevalence of toothache at ages 6 and 12 yr, the prevalence of toothache during the last month, and their association with social, behavioural and clinical exposures in the course of life of 339 12-yr-old children from a birth cohort in Pelotas, Brazil. Exploratory variables were collected in the perinatal study and during(More)
The objective of this study was to assess the relation between dental pain, dental caries and socioeconomic status among 12- and 13-year-old schoolchildren enrolled in a public school in Florianópolis, SC, Brazil in 2002. This study was a cross-sectional study involving 181 schoolchildren. Dental pain experience was the dependend variable analyzed.(More)
AIM To estimate the prevalence of periodontal disease in Brazilian adults and to test its association with skin colour after controlling for socio-demographic variables. METHODS The periodontal status of 11,342 Brazilian adults was informed by a nationwide oral health survey. Socio-demographic variables included skin colour, gender, schooling, per capita(More)
The importance of estimating sample sizes is rarely understood by researchers, when planning a study. This paper aims to highlight the centrality of sample size estimations in health research. Examples that help in understanding the basic concepts involved in their calculation are presented. The scenarios covered are based more on the epidemiological(More)
OBJECTIVE To develop an instrument to assess discrimination effects on health outcomes and behaviors, capable of distinguishing harmful differential treatment effects from their interpretation as discriminatory events. METHODS Successive versions of an instrument were developed based on a systematic review of instruments assessing racial discrimination,(More)
OBJECTIVE To analyze access to and utilization of dental care services in Brazil. METHODS We used data from the 2003 and 2008 Brazilian National Household Surveys, which we compared to data from the 1998 survey. We investigated access and utilization variables at ages three, six, nine, 12, 15, and 19 years in the first (Q1) and fifth (Q5) quintiles of per(More)
The objective of this study was to review the Brazilian epidemiologic literature on periodontal outcomes and socio-demographic factors, assessing bibliographic and methodological characteristics of this scientific production, as well as the consistency and statistical significance of the examined associations. A systematic review was carried out in six(More)