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Table 2 Record-level measures of validity by data source, age and reporting method

From: Accuracy of reporting of Aboriginality on administrative health data collections using linked data in NSW, Australia

Age Method APDC EDDC
(years)   Sensitivity Specificity PPV NPV \( \mathcal{F} \) Sensitivity Specificity PPV NPV \( \mathcal{F} \)
   % % % %   % % % %  
0–19 As recorded 75.1 99.7 93.6 98.6 0.83 72.2 99.6 93.5 98.0 0.81
Enhanced:           
1. Most recent 79.9 99.7 94.4 98.9 0.87 80.1 99.6 93.4 98.5 0.86
2. ERA algorithm 83.0 99.4 88.9 99.0 0.86 82.5 99.2 88.5 98.7 0.85
3. Multi-stage median 82.3 99.5 89.6 99.0 0.86 81.7 99.3 89.1 98.6 0.85
4. Ever reported 87.8 99.1 85.2 99.3 0.87 85.3 98.9 85.0 98.9 0.85
20–39 As recorded 72.5 99.6 91.7 98.2 0.81 75.8 99.4 92.3 97.8 0.83
Enhanced:           
1. Most recent 68.5 99.5 91.0 97.9 0.78 81.3 99.2 90.3 98.3 0.86
2. ERA algorithm 83.4 99.3 89.0 98.9 0.86 89.7 98.8 87.4 99.0 0.89
3. Multi-stage median 82.9 99.4 89.9 98.9 0.86 89.2 98.9 88.2 99.0 0.89
4. Ever reported 85.0 99.1 86.4 99.0 0.86 91.5 98.6 85.6 99.2 0.88
40–64 As recorded 88.0 99.8 97.5 98.8 0.93 81.0 99.7 96.5 97.9 0.88
Enhanced:           
1. Most recent 88.4 99.8 97.8 98.8 0.93 82.3 99.6 96.3 98.1 0.89
2. ERA algorithm 93.9 99.2 92.2 99.4 0.93 91.2 99.2 92.7 99.0 0.92
3. Multi-stage median 93.9 99.4 94.6 99.4 0.94 91.3 99.2 92.9 99.0 0.92
4. Ever reported 94.6 99.0 91.1 99.4 0.93 92.4 99.0 91.4 99.2 0.92
65+ As recorded 83.6 99.8 93.8 99.3 0.88 75.1 99.8 93.4 99.1 0.83
Enhanced:           
1. Most recent 80.9 99.7 91.3 99.2 0.86 77.0 99.8 94.6 99.2 0.85
2. ERA algorithm 89.9 99.3 84.2 99.6 0.87 84.7 99.5 87.1 99.5 0.86
3. Multi-stage median 89.7 99.3 84.5 99.6 0.87 84.4 99.6 88.1 99.4 0.86
4. Ever reported 90.9 99.1 81.9 99.6 0.86 85.4 99.4 83.5 99.5 0.84
Total As recorded 84.4 99.7 95.3 99.0 0.90 77.4 99.7 94.7 98.5 0.85
Enhanced:           
1. Most recent 83.2 99.7 94.4 99.0 0.88 80.4 99.7 94.5 98.7 0.87
2. ERA algorithm 90.9 99.3 88.3 99.4 0.90 88.0 99.3 89.8 99.2 0.89
3. Multi-stage median 90.7 99.3 89.5 99.4 0.90 87.7 99.4 90.4 99.2 0.89
4. Ever reported 92.0 99.1 86.4 99.5 0.89 89.3 99.1 87.4 99.3 0.88