Mondini Adriano, Chiaravalloti Neto Francisco
Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, SP, Brasil.
Rev Saude Publica. 2007 Dec;41(6):923-30. doi: 10.1590/s0034-89102007000600006.
To evaluate the relationship between risk of occurrence of dengue and socioeconomic level.
All confirmed autochthonous cases of dengue between September 1990 and August 2002 were geocoded and grouped according to the urban census tracts of the municipality of São José do Rio Preto, Southeastern Brazil. A socioeconomic factor generated by principal component analysis was used to group census tracts into four socioeconomic levels. Incidence rates were calculated for each year and four-year period for each of the census sectors, considering the period from September of one year to August of the next. Thematic maps of sectors, grouped into each of the four socioeconomic levels and their respective disease incidences, are presented.
Principal component analysis generated a socioeconomic factor that accounted for 87% of total variation. This factor was associated with dengue incidence only for the 1994-95 period.
The lack of an association between risk of occurrence of dengue and socioeconomic levels in almost all years studied indicates that this issue deserves further study, and may vary depending on the settings found in each municipality. It will be important to determine the spatial relationship between dengue transmission and other variables, such as degree of immunity in the population, effectiveness of control measures, degree of infestation by the vector; and population habits and behaviors, among others.
评估登革热发病风险与社会经济水平之间的关系。
对1990年9月至2002年8月间所有确诊的本地登革热病例进行地理编码，并根据巴西东南部里约普雷图市圣若泽杜里奥普雷图市的城市普查区域进行分组。通过主成分分析生成的社会经济因素被用于将普查区域分为四个社会经济水平。计算每个普查区域每年和每四年的发病率，计算周期为从一年的9月到次年的8月。展示了按四个社会经济水平分组的各区域及其相应疾病发病率的专题地图。
主成分分析生成了一个占总变异87%的社会经济因素。该因素仅在1994 - 1995年期间与登革热发病率相关。
在几乎所有研究年份中，登革热发病风险与社会经济水平之间缺乏关联，这表明该问题值得进一步研究，并且可能因每个城市的情况而异。确定登革热传播与其他变量之间的空间关系将很重要，这些变量包括人群免疫程度、控制措施的有效性、病媒滋生程度以及人群习惯和行为等。
