Table 3.
Main characteristics of reviewed VA validation studies (n=26)
| Number of validation studies | Measures of validity | Validated against hospital CoD data | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||||
| Sensitivity | Specificity | PPV | NPV | CSF | Concordance between VA CSMF and CSMF from validation data | ROC curve | Kappa statistics | Cause-specific and average chance-corrected concordance | CSMF accuracy | Cause-specific concordance correlation coefficients of estimated CSMFs compared to true CSMFs | ||
| WHO VA instrument (n=6) | 6/6 | 6/6 | 2/6 | 2/6 | 1/6 | 1/6 | 1/6 | 0/6 | 0/6 | 0/6 | 0/6 | 6/6 |
| Adapted WHO VA instrument (n=10) | 3/10 | 2/10 | 2/10 | 1/10 | 0/10 | 2/10 | 0/10 | 2/10 | 5/10 | 6/10 | 6/10 | 9/10 |
| INDEPTH VA instrument (n=3) | 0/3 | 0/3 | 0/3 | 0/3 | 0/3 | 2/3 | 0/3 | 2/3 | 0/3 | 0/3 | 0/3 | 0/3 |
| Adapted INDEPTH VA instrument (n=1) | 1/1 | 1/1 | 1/1 | 0/1 | 0/1 | 1/1 | 1/1 | 1/1 | 0/1 | 0/1 | 0/1 | 0/1 |
| SAVVY instrument (n=1) | 1/1 | 1/1 | 1/1 | 1/1 | 0/1 | 1/1 | 1/1 | 1/1 | 0/1 | 0/1 | 0/1 | 1/1 |
| Adapted SAVVY instrument (n=1) | 0/1 | 1/1 | 1/1 | 0/1 | 0/1 | 0/1 | 0/1 | 0/1 | 0/1 | 0/1 | 0/1 | 0/1 |
| LSHTM VA instrument (n=4) | 3/4 | 3/4 | 1/4 | 0/4 | 0/4 | 3/4 | 0/4 | 1/4 | 0/4 | 0/4 | 0/4 | 4/4 |
| Total (n=26) | 14/26 | 14/26 | 8/26 | 4/26 | 1/26 | 10/26 | 3/26 | 7/26 | 5/26 | 6/26 | 6/26 | 20/26 |