Skip to main content

Advertisement

Table 4 Partial chance-corrected concordance of computer-coded verbal autopsy methods versus physician-coded verbal autopsy reference standards

From: Performance of four computer-coded verbal autopsy methods for cause of death assignment compared with physician coding on 24,000 deaths in low- and middle-income countries

Dataset Test cases Open-source random forest Open-source tariff method InterVA-4   Average for top cause (%)
   Top (%) Top 3 (%) Top (%) Top 3 (%) Top (%) Top 3 (%)  
China 400 33 55 32 64 N/A N/A 33
Institute for Health Metrics and Evaluation 400 31 54 32 48 N/A N/A 32
Million Death Study 6100 55 81 48 70 38a 60a 47
Agincourt 2900 42 75 38 62 39 56 40
Matlab 1600 45 72 48 68 45 59 46
Average 41 67 40 62 41 58  
  1. Top cause represents accuracy of the CCVA method’s most probable cause matching the cause assigned by PCVA; Top 3 represents whether CCVA’s three most probable causes contain the cause assigned by PCVA. Averages calculated across CCVA methods only use results for the top cause. aThe Million Death Study dataset used for InterVA-4 contained a sample of 552 cases, in which we attempted to extract additional InterVA-4 indicators from the narratives.