Escola de Enfermagem, Departamento de Enfermagem Materno-infantil em Saúde Pública, Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, Brazil.
J Nutr. 2011 May;141(5):898-902. doi: 10.3945/jn.110.135046. Epub 2011 Mar 9.
Our aim was to determine whether food insecurity was associated with a higher prevalence of obesity in a large random sample of Brazilian women of reproductive age. The data were derived from the 3rd edition of the Children's and Women's National Demographic and Health Survey conducted in 2006-07. This was a nationally representative cross-sectional study. Obesity (BMI ≥ 30 kg/m(2)) was the outcome variable. Associations were measured using crude and adjusted prevalence ratios (PR) with 95% CI through Poisson regression models taking into account the complex sampling design. The sample included 10,226 women from 18 to 45 y of age. The prevalence of any level of food insecurity measured by the Brazilian Food Insecurity Scale was 40.9%, with 25.5% light, 10.1% mild, and 5.3% severe food insecurities. The prevalence of obesity was 17.4%. We found a borderline effect of light food insecurity and increased prevalence of obesity in Brazil (PR = 1.16; 95% CI = 0.98-1.38; P = 0.08). Women with mild food insecurity had a higher risk of being obese than their food-secure counterparts (PR = 1.49; 95% CI = 1.17-1.90; P = 0.010) after adjustment for skin color/ethnicity, years of schooling, geographical region, income, age, and marital status. In conclusion, this study suggests that mild but not light or severe food insecurity was associated with obesity as assessed by BMI, even after adjusting for various confounding factors in this large cross-sectional survey performed in a middle-income country undergoing the nutrition transition.
我们的目的是确定在一个大型的、随机的巴西育龄妇女样本中，食物不安全是否与肥胖的更高患病率相关。数据来自于 2006-07 年进行的第三次儿童和妇女国家人口和健康调查。这是一项具有全国代表性的横断面研究。肥胖（BMI≥30kg/m²）是结果变量。使用粗患病率比（PR）和调整后的 PR（95%CI），通过泊松回归模型进行关联测量，考虑到复杂的抽样设计。样本包括 18-45 岁的 10226 名妇女。用巴西食物不安全量表衡量的任何程度的食物不安全的流行率为 40.9%，其中轻度为 25.5%，中度为 10.1%，严重为 5.3%。肥胖的流行率为 17.4%。我们发现，轻度食物不安全与巴西肥胖患病率的增加之间存在边缘效应（PR=1.16；95%CI=0.98-1.38；P=0.08）。轻度食物不安全的妇女比食物安全的妇女肥胖的风险更高（PR=1.49；95%CI=1.17-1.90；P=0.010），调整了肤色/种族、受教育年限、地理区域、收入、年龄和婚姻状况等混杂因素后。总之，这项研究表明，即使在这个正在经历营养转型的中等收入国家的大型横断面调查中，调整了各种混杂因素后，轻度而非轻度或严重的食物不安全与 BMI 评估的肥胖相关。
