Space-time scan for identification of risk areas for hospitalization of children due to asthma in Mato Grosso, Brazil.

Introduction: Asthma is the result of a complex interaction between genetic, environmental and socioeconomic factors. It represents a serious global public health problem. The goal of this study was to identify geographic areas for priority actions in order to control of asthma in children.

Socioeconomic factors and risk for hospitalisation due to asthma in children in the municipalities of Mato Grosso State, Brazil.

This ecological study used data accumulated between 2001 and 2012 hospital admissions of children under five years of age with asthma in 141 municipalities in the Mato Grosso. Hospital data were extracted from the SIH/SUS system, and hospitalisation rates were estimated using the Bayesian inference method. SaTScan software was used for the calculation of the relative risk (RR).

[Prevalence of wheezing and associated factors in children under 5 years of age in Cuiabá, Mato Grosso State, Brazil].

Wheezing is highly prevalent in Brazil, with variations in rates and risk factors between the regions of the country. This cross-sectional study aimed to analyze the prevalence of wheezing in children under 5 years of age (n = 733) in Cuiabá, Mato Grosso State, Brazil. The study used a brief version of the standardized instrument from the International Study of Wheezing in Infants (EISL).

Prevalence of asthma in schoolchildren in Alta Floresta- a municipality in the southeast of the Brazilian Amazon.

Objective: To analyze the prevalence and symptoms of asthma in students of the Brazilian Amazon municipality of Alta Floresta-MT.

Methods: Cross-sectional study on the prevalence of asthma in 6 and 7 year-old children and 13 to 14 year-old adolescents, using the Study of Asthma and Allergies in Childhood - ISAAC method, phase I in 2007. Students who answered affirmatively question 2 - "presence of wheezing in the past 12 months" were considered asthmatic.

Prevalence of asthma in children and adolescents in a city in the Brazilian Amazon region.

Objective: To analyze the prevalence of asthma and asthma symptoms in students of two distinct age brackets residing in the city of Tangará da Serra, Brazil.

Methods: Cross-sectional, population-based study of the prevalence of asthma in children from 6 to 7 years of age and adolescents from 13 to 14, using the standardized International Study of Asthma and Allergies in Childhood, phase 1 questionnaire, validated for use in Brazil. Students who responded affirmatively to question 2 (presence of wheezing in the preceding 12 months) were classified as suffering from asthma.

Respiratory disease and climatic seasonality in children under 15 years old in a town in the Brazilian Amazon.

Objective: To analyze the climatic seasonality of primary care visits for respiratory disease (RD) in children less than 15 years old.

Methods: This was a descriptive, epidemiological study based on data from the municipal records of primary care events from basic healthcare centers for the period 2004-2005, for the municipality of Tangará da Serra (MT), Brazil. Population estimates were obtained from the Brazilian Institute of Geography and Statistics (Instituto Brasileiro de Geografia e Estatística, IGBE), and data on temperature and relative humidity of the air, from the National Meteorology Institute (Instituto Nacional de Meteorologia, INMET).

Analysis of hospitalizations for respiratory diseases in Tangará da Serra, Brazil.

Objective: To analyze hospitalizations for respiratory diseases among children under 15 years of age in an area with high levels of environmental pollution.

Methods: A cross-sectional study of hospitalizations due to respiratory diseases of patients residing in the city of Tangará da Serra, located in the state of Mato Grosso (Brazilian Amazon region), from 2000 to 2005. Data on hospital admissions were obtained from the Brazilian Unified Health Care System and from Brazilian Institute of Geography and Statistics population estimates.