Andreoni G I, Veneziano D B, Giannotti Filho O, Marigo C, Mirra A P, Fonseca L A
Instituto Brasileiro de Controle do Câncer, São Paulo, SP, Brasil.
Rev Saude Publica. 2001 Aug;35(4):362-7. doi: 10.1590/s0034-89102001000400005.
As in Brazil cancer registries are mostly based on large cities, there are no estimates per state or per region and information on the disease incidence in the vast in-land areas is very scarce. An incidence survey was conducted in 18 major cities of the state of São Paulo, excluding the capital, aiming to collect information about cancer incidence in the state of São Paulo.
Of the 18 cities in state of São Paulo included in the survey, all had available resources for cancer management. Data from the year of 1991 were collected by the personnel of the Instituto Brasileiro de Geografia e Estatística (Brazilian Institute of Statistics), who were especially trained by the study coordinators at the Fundação Oncocentro de São Paulo (Cancer Center of São Paulo). The collected data were processed and analyzed at the Oncocentro. Data collection, processing, and analyses were performed according to the recommendations of the International Agency for Research on Cancer.
Although some discrepancies were observed in cancer incidence rates between the cities, results obtained for all 18 cities combined were remarkably close to those recently found for the city of São Paulo in the year 1993. One remarkable finding was the relatively high cancer incidence rates in both sexes in the city of Santos.
The very similar all-sites cancer incidence rates found in the year 1991, when compared to those for the city of São Paulo in the year 1993, are suggestive that all regions have common cancer-related factors. Nevertheless, other explanations, such as the inclusion in the study of prevalent cases, as well as of non-residents, may have occurred in both studies, biasing the results. There is a need of further studies to confirm the high cancer incidence in Santos.
由于巴西的癌症登记大多基于大城市，缺乏各州或各地区的估计数据，广大内陆地区的疾病发病率信息非常匮乏。在圣保罗州18个主要城市（不包括首府）开展了一项发病率调查，旨在收集圣保罗州癌症发病率的信息。
参与调查的圣保罗州18个城市均具备癌症管理资源。1991年的数据由巴西地理与统计研究所的工作人员收集，这些人员经过圣保罗癌症中心研究协调员的专门培训。收集到的数据在癌症中心进行处理和分析。数据收集、处理和分析均按照国际癌症研究机构的建议进行。
尽管各城市之间的癌症发病率存在一些差异，但18个城市综合得出的结果与1993年圣保罗市最近的调查结果非常接近。一个显著发现是桑托斯市男女的癌症发病率相对较高。
1991年发现的所有部位癌症发病率与1993年圣保罗市的发病率非常相似，这表明所有地区存在共同的癌症相关因素。然而，两项研究都可能存在其他解释，例如纳入了现患病例以及非居民，从而使结果产生偏差。需要进一步研究来证实桑托斯市的高癌症发病率。
