Gonçalves Michele Martins, Leles Cláudio Rodrigues, Freire Maria do Carmo Matias
Federal University of Goias, School of Dentistry, 74605-220 Goiania, GO, Brazil.
Int J Dent. 2013;2013:492790. doi: 10.1155/2013/492790. Epub 2013 Nov 7.
The objective of this ecological study was to investigate the association between caries experience in 5- and 12-year-old Brazilian children in 2010 and household sugar procurement in 2003 and the effects of exposure to water fluoridation and socioeconomic indicators. Sample units were all 27 Brazilian capital cities. Data were obtained from the National Surveys of Oral Health; the National Household Food Budget Survey; and the United Nations Program for Development. Data analysis included correlation coefficients, exploratory factor analysis, and linear regression. There were significant negative associations between caries experience and procurement of confectionery, fluoridated water, HDI, and per capita income. Procurement of confectionery and soft drinks was positively associated with HDI and per capita income. Exploratory factor analysis grouped the independent variables by reducing highly correlated variables into two uncorrelated component variables that explained 86.1% of total variance. The first component included income, HDI, water fluoridation, and procurement of confectionery, while the second included free sugar and procurement of soft drinks. Multiple regression analysis showed that caries is associated with the first component. Caries experience was associated with better socioeconomic indicators of a city and exposure to fluoridated water, which may affect the impact of sugars on the disease.
这项生态学研究的目的是调查2010年巴西5岁和12岁儿童的龋齿经历与2003年家庭食糖采购之间的关联，以及水氟化暴露和社会经济指标的影响。样本单位为巴西所有27个首府城市。数据来自全国口腔健康调查、全国家庭食品预算调查以及联合国开发计划署。数据分析包括相关系数、探索性因子分析和线性回归。龋齿经历与糖果采购、氟化水、人类发展指数（HDI）和人均收入之间存在显著的负相关。糖果和软饮料的采购与人类发展指数和人均收入呈正相关。探索性因子分析通过将高度相关的变量归为两个不相关的成分变量对自变量进行分组，这两个成分变量解释了总方差的86.1%。第一个成分包括收入、人类发展指数、水氟化和糖果采购，而第二个成分包括游离糖和软饮料采购。多元回归分析表明，龋齿与第一个成分相关。龋齿经历与城市更好的社会经济指标以及氟化水暴露相关，这可能会影响糖类对该疾病的影响。
