Guimarães Raphael Mendonça, Rocha Paulo Guilherme Molica, Muzi Camila Drumind, Ramos Raquel de Souza
Instituto de Estudos em Saúde Coletiva/UFRJ, Rio de Janeiro, RJ, Brazil.
Arq Gastroenterol. 2013 Jan-Mar;50(1):64-9. doi: 10.1590/s0004-28032013000100012.
Several international studies have observed a correlation between the improvement of socio-demographic indicators and rates of incidence and mortality from cancer of the colon and rectum.
The objective of this study is to estimate the correlation between average per capita income and the rate of colorectal cancer mortality in Brazil between 2001 and 2009.
We obtained data on income inequality (Gini index), population with low incomes (½ infer the minimum wage/month), average family income, per capita ICP and mortality from colon cancer and straight between 2001-2009 by DATASUS. A trend analysis was performed using linear regression, and correlation between variables by Pearson's correlation coefficient.
There was a declining trend in poverty and income inequality, and growth in ICP per capita and median family income and standardized mortality rate for colorectal cancer in Brazil. There was also strong positive correlation between mortality from this site of cancer and inequality (men r = -0.30, P = 0.06, women r = -0.33, P = 0.05) income low income (men r = -0.80, P<0.001, women r = -0.76, P<0.001), median family income (men r = 0.79, P = 0.06, women r = 0.76, P<0.001) and ICP per capita (men r = 0.73, P<0.001, women r = 0.68, P<0.001) throughout the study period.
The increase of income and reducing inequality may partially explain the increased occurrence of colorectal cancer and this is possibly due to differential access to food recognized as a risk factor, such as red meat and high in fat. It is important therefore to assess the priority of public health programs addressing nutrition in countries of intermediate economy, as is the case of Brazil.
多项国际研究观察到社会人口统计学指标的改善与结肠癌和直肠癌的发病率及死亡率之间存在关联。
本研究的目的是估计2001年至2009年巴西人均收入与结直肠癌死亡率之间的相关性。
我们通过巴西卫生部信息系统（DATASUS）获取了2001 - 2009年期间的收入不平等数据（基尼指数）、低收入人群（月收入低于最低工资一半）、家庭平均收入、人均国内生产总值（ICP）以及结肠癌和直肠癌死亡率的数据。使用线性回归进行趋势分析，并通过皮尔逊相关系数分析变量之间的相关性。
巴西的贫困和收入不平等呈下降趋势，人均国内生产总值、家庭收入中位数以及结直肠癌标准化死亡率呈增长趋势。在整个研究期间，该部位癌症的死亡率与不平等程度（男性r = -0.30，P = 0.06，女性r = -0.33，P = 0.05）、低收入（男性r = -0.80，P<0.001，女性r = -0.76，P<0.001）、家庭收入中位数（男性r = 0.79，P = 0.06，女性r = 0.76，P<0.001）和人均国内生产总值（男性r = 0.73，P<0.001，女性r = 0.68，P<0.001）之间也存在很强的正相关。
收入增加和不平等程度降低可能部分解释了结直肠癌发病率的上升，这可能是由于获取被认为是风险因素的食物（如红肉和高脂肪食物）的机会存在差异。因此，评估中等经济水平国家（如巴西）针对营养问题的公共卫生项目的优先级很重要。
