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Table 2 Characteristics of the three studies used as data sources.

From: Adaptation of a probabilistic method (InterVA) of verbal autopsy to improve the interpretation of cause of stillbirth and neonatal death in Malawi, Nepal, and Zimbabwe

  Malawi Nepal Zimbabwe
Neonatal mortality rate 27/1000[30]. 33/1000[31] 24/1000[32]
Study period 1 year 3 years 2 years
Number of VA questionnaires 169 385 180
Questionnaire Mixed open and closed questions Mixed open and closed questions Standard WHO tool incorporating open and closed questions (24)
Interviewers 5 lay Malawian interviewers with secondary education Lay local field coordinators 45 midwife enumerators
Physician review 2 experienced local pediatricians Predefined algorithm 3 causes of death 3 experienced local pediatricians Predefined algorithm 1 cause of death 3 experienced local physicians International Classification of Diseases and Related Health Problems (ICD-10) 1 cause of death