Surveillance of risk-factors for chronic diseases through telephone interviews in 27 Brazilian cities (2006)

Revista Brasileira de Epidemiologia

Silva, Nilza Nunes da¹  Claro, Rafael Moreira¹  Moura, Lenildo de²  Bernal, Regina¹  Moura, Erly Catarina¹  Malta, Deborah Carvalho²  Monteiro, Carlos Augusto³  Morais Neto, Otaliba Libânio de² 

[1] USP;Ministério da Saúde;Universidade de São Paulo

关键词: Non-communicable diseases;    Adults;    Telephone interviews;    Food consumption;    Physical activity;    Smoking;    Obesity;    Socioeconomic status;    Urban population;    Brazil;   

DOI  :  10.1590/S1415-790X2008000500003

学科分类：过敏症与临床免疫学

来源: SciELO

【 摘 要 】

OBJECTIVES:To describe methods and initial findings of the Surveillance System of Riskand Protective Factors for Chronic Non-Communicable Diseases through TelephoneInterviews – VIGITEL implemented in Brazil in 2006.
METHODS: VIGITEL studied random samples of individuals with 18 yearsof age or more living in households with telephones in each capital of the 26Brazilian states and the Federal District (54,369 total individuals, and atleast 2,000 per city). Sampling was based on complete electronic telephone directoriesin each city and included random selection of phone lines (households) and randomselection of the household member to be interviewed. The questionnaire investigateddemographic and socioeconomic characteristics, diet patterns, physical activity,smoking, consumption of alcoholic beverages, recalled weight and height, andother topics. Prevalence estimates of selected protective and risk factors,stratified by gender with corresponding 95% Confidence Intervals, were calculatedfor the adult population of each city using sample weighing factors designedto equalize the sample socio-demographic distribution in each city to the distributionobserved in the same city in the Demographic Census of 2000. Estimates werealso calculated for all cities together using additional sample weighing thattook into account the adult population size of each city.
FINDINGS: The five selected risk factors (smoking, excessive consumptionof alcoholic beverages, overweight, habit of eating fatty meats, and physicalinactivity) were more frequent among men than women. Among protective factors,the regular consumption of fruits and vegetables was more common among womenthan men and the opposite was seen for leisure-time physical activity. Strongdifferences among the cities were found for all protective and risk factors,with distinct patterns of regional distribution seen for different factors.
DISCUSSION: The performance of the system, evaluated based on the qualityof telephone directories and response and refusal rates, was appropriate andin general higher than the performance seen in similar systems of developedcountries. The cost of R$ 31.15 per complete interview was half the cost ofthe Behavioral Risk-Factor Surveillance System and one fifth of the cost estimatedfor a household survey on risk factors for chronic diseases recently conductedin Brazil.

【 授权许可】

CC BY