Table 4.
Diagnostic validity of WHODAS‐12 using WHODAS‐36 as a “gold standard” to determine dysfunction and disability among women in the postpartum period
| P>90 | P>95 | P>97.5 | |
|---|---|---|---|
| Sensitivity | 83.3% | 83.3% | 66.7% |
| Specificity | 98.3% | 99.2% | 99.2% |
| Positive predictive value | 83.3% | 83.3% | 66.67% |
| Negative predictive value | 98.3% | 99.2% | 99.2% |
| AUC ROC | 0.976 | 0.996 | 0.989 |
| Number of women scoring in each category | |||
|---|---|---|---|
| Percentiles | WHODAS‐36 as “gold standard” | ||
| P>90 | P≤90 | ||
| WHODAS‐12 as test | P>90 | 10 | 2 |
| P≤90 | 2 | 113 | |
| Total | 12 | 115 | |
| P>95 | P≤95 | ||
| WHODAS‐12 as test | P>95 | 5 | 1 |
| P≤95 | 1 | 120 | |
| Total | 6 | 121 | |
| P>97.5 | P≤97.5 | ||
| WHODAS‐12 as test | P>97.5 | 2 | 1 |
| P≤97.5 | 1 | 123 | |
| Total | 3 | 124 | |
Abbreviations: AUC, area under the curve; P, percentile; ROC, receiver operating characteristic.