de Frias Paulo Germano, Szwarcwald Célia Landmann, Souza Junior Paulo Roberto Borges de, Almeida Wanessa da Silva de, Lira Pedro Israel Cabral
Rev Saude Publica. 2013 Dec;47(6):1048-58. doi: 10.1590/s0034-8910.2013047004839.
To propose a simplified method of correcting vital information and estimating the coefficient of infant mortality in Brazil.
Vital data in the information systems on mortality and live births were corrected using correction factors, estimated based on events not reported to the Brazilian Ministry of Health and obtained by active search. This simplified method for correcting vital information for the period 2000-2009 for Brazil and its federal units establishes the level of adequacy of information on deaths and live births by calculating the overall coefficient of mortality standardized by age and the ratio between reported and expected live births, respectively, in each Brazilian municipality. By applying correction factors to the number of deaths and live births reported in each county, the vital statistics were corrected, making it possible to estimate the coefficient of infant mortality.
The highest correction factors were related to infant deaths, reaching values higher than 7 for municipalities with very precarious mortality information. For deaths and live births, the correction factors exhibit a decreasing gradient as indicators of adequacy of the vital information improve. For the year 2008, the vital information corrected by the simplified method per state were similar to those obtained in the research of active search. Both the birth rate and the infant mortality rate decreased in the period in all Brazilian regions. In the Northeast, the annual rate of decline was 6.0%, the highest in Brazil (4.7%).
The active search of deaths and births allowed correction factors to be calculated by level of adequacy of mortality information and live births. The simplified method proposed here allowed vital information to be corrected per state for the period 2000-2009 and the progress of the coefficient of infant mortality in Brazil, its regions and states to be assessed.
提出一种简化的方法来校正巴西的生命统计信息并估算婴儿死亡率系数。
利用校正因子对死亡率和活产信息系统中的生命统计数据进行校正，校正因子是根据未向巴西卫生部报告的事件估算得出，并通过主动搜索获取。这种用于校正巴西及其联邦单位2000 - 2009年期间生命统计信息的简化方法，通过计算按年龄标准化的总体死亡率系数以及巴西各城市报告的活产数与预期活产数之比，来确定死亡和活产信息的充分程度。通过将校正因子应用于每个县报告的死亡数和活产数，对生命统计数据进行校正，从而能够估算婴儿死亡率系数。
最高的校正因子与婴儿死亡相关，对于死亡率信息非常不稳定的城市，校正因子的值超过7。对于死亡和活产，随着生命统计信息充分程度指标的改善，校正因子呈现出下降趋势。2008年，采用简化方法校正的每个州的生命统计信息与主动搜索研究中获得的信息相似。在该时期，巴西所有地区的出生率和婴儿死亡率均有所下降。在东北部，年下降率为6.0%，是巴西最高的（4.7%）。
对死亡和出生情况的主动搜索使得能够根据死亡率信息和活产情况的充分程度计算校正因子。本文提出的简化方法能够校正2000 - 2009年期间每个州的生命统计信息，并评估巴西及其地区和各州婴儿死亡率系数的变化情况。
