Assessing a new approach to verbal autopsy interpretation in a rural Ethiopian community: the InterVA model
Assessing a new approach to verbal autopsy interpretation in a rural Ethiopian community: the InterVA model
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DOI：
10.2471/blt.05.028712
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发表时间：
2006-03-01
期刊：
影响因子：
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通讯作者：
Byass, Peter
中科院分区：
文献类型：
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作者：
Fantahun, Mesganaw;Fottrell, Edward;Byass, Peter
目标 口头尸检（VA）——在事件发生后对家庭成员或护理人员进行访谈，了解死亡情况——是在常规死亡登记不存在或不充分的地区的一种既定工具。我们评估了用于解释基于社区的 VA 访谈的概率模型 (InterVA) 的性能，以调查埃塞俄比亚农村社区的特定原因死亡率模式。我们将结果与当地医生审查 VA 后获得的结果进行比较，以验证该模型作为基于社区的工具。方法 成功完成了 289 例 VA 访谈；其中包括一年内发生在特定社区的大多数死亡。 VA 的访谈由医生和模型进行解释，并使用这两种方法得出整个社区和特定年龄组的特定原因死亡率分数。结果 在埃塞俄比亚的这个例子中，两种解释方法的结果相关性很好。四个主要原因组占所有死亡的 60% 以上，特定年龄组内的模式与对撒哈拉以南非洲欠发达的高死亡率社区的预期一致。 结论 与医生的解释相比，InterVA 模型的劳动强度要小得多，并且提供 100% 的一致性。它是一个有价值的新工具，用于描述没有死亡登记的社区的特定原因死亡率模式以及比较不同人群的死亡率模式。
Objective Verbal autopsy (VA) - the interviewing of family members or caregivers about the circumstances of a death after the event - is an established tool in areas where routine death registration is non-existent or inadequate. We assessed the performance of a probabilistic model (InterVA) for interpreting community-based VA interviews, in order to investigate patterns of cause-specific mortality in a rural Ethiopian community. We compared results with those obtained after review of the VA by local physicians, with a view to validating the model as a community-based tool.Methods Two-hundred and eighty-nine VA interviews were successfully completed; these included most deaths occurring in a defined community over a 1-year period. The VA interviews were interpreted by physicians and by the model, and cause-specific mortality fractions were derived for the whole community and for particular age groups using both approaches.Findings The results of the two approaches to interpretation correlated well in this example from Ethiopia. Four major cause groups accounted for over 60% of all mortality, and patterns within specific age groups were consistent with expectations for an underdeveloped high-mortality community in sub-Saharan Africa.Conclusion Compared with interpretation by physicians, the InterVA model is much less labour intensive and offers 100% consistency. It is a valuable new tool for characterizing patterns of cause-specific mortality in communities without death registration and for comparing patterns of mortality in different populations.