BACKGROUND
In low- and middle-income countries, mortality levels are commonly derived from retrospective reports on deceased relatives collected in sample surveys and censuses. These data sources are potentially affected by recall errors.

OBJECTIVE
Using high-quality data collected by the Nouna Health and Demographic Surveillance System (HDSS) in Burkina Faso, we evaluate the reliability of mortality estimates based on the 2006 national census.

METHODS
We extracted from the census database all records referring to the population under surveillance in the HDSS. Life tables were estimated from recent household deaths reported in the census and compared to those obtained from the prospective mortality data. To evaluate age errors and assess their impact on mortality, we linked census and HDSS records at the individual level for the surviving population and the deceased. Indirect estimates of mortality were also calculated based on the reported survival of children and parents.

RESULTS
Life expectancies at birth derived from recent household deaths pointed to a lower mortality than monitored in the HDSS, with a difference of 4 years for men and 8 years for women. Underreporting of deaths among the population aged 60 and above accounted for more than half of these differences. Age errors were small for the surviving population and larger for the deceased, but their effects on mortality estimates were modest. Indirect estimates of child mortality were consistent with the HDSS data, but orphanhood-based estimates were implausibly low.

CONCLUSIONS
Additional elicitation questions should be asked during the census interviews to improve the collection of data on recent household deaths.



中文翻译：

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根据人口普查数据估算死亡率：布基纳法索 Nouna 健康和人口监测系统的记录关联研究（作者：Yempabou Bruno Lankoandé、Bruno Masquelier、Pascal Zabre、Hélène Bangré、Géraldine Duthé、Abdramane B. Soura、Gilles Pison、Sié Ali )

背景
在低收入和中等收入国家，死亡率水平通常来自抽样调查和人口普查中收集的已故亲属的回顾性报告。这些数据源可能会受到召回错误的影响。

目标
使用布基纳法索 Nouna 健康和人口监测系统 (HDSS) 收集的高质量数据，我们评估基于 2006 年全国人口普查的死亡率估计值的可靠性。

方法
我们从人口普查数据库中提取了所有涉及 HDSS 中受监视人口的记录。生命表是根据人口普查中报告的最近家庭死亡人数估算的，并与从预期死亡率数据中获得的数据进行比较。为了评估年龄错误并评估其对死亡率的影响，我们将幸存人口和死者的个人人口普查和 HDSS 记录联系起来。死亡率的间接估计也是根据报告的儿童和父母的存活率计算的。

结果
根据近期家庭死亡人数得出的出生时预期寿命表明死亡率低于 HDSS 监测的死亡率，男性相差 4 年，女性相差 8 年。60 岁及以上人口的死亡人数漏报占这些差异的一半以上。幸存者的年龄误差很小，死者的年龄误差较大，但它们对死亡率估计的影响不大。儿童死亡率的间接估计与 HDSS 数据一致，但基于孤儿的估计低得令人难以置信。

结论
在人口普查访谈期间应提出额外的启发问题，以改进对近期家庭死亡数据的收集。