Table 3.
Diagnostic validity of standard, short, and ultrashort versions of the EPDS for the clinical interview depression outcome
Version | ROC area (95 % CI) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | LR + [C] | LR + [W] | LR − [C] | LR − [W] | Correctly classified (%) | k | α |
---|---|---|---|---|---|---|---|---|---|---|---|---|
EPDS10 | 0.8169 (0.73–0.89) | 68.63 | 77.59 | 72.92 | 73.77 | 3.061 | 2.692 | 0.404 | 0.355 | 73.39 | 0.4638 | 0.6130 |
EPDS7 | 0.8323 (0.75–0.90) | 60.78 | 89.66 | 83.78 | 72.22 | 5.875 | 5.166 | 0.437 | 0.384 | 76.15 | 0.5129 | 0.7033 |
EPDS5R | 0.8440 (0.77–0.91) | 64.71 | 86.22 | 80.49 | 73.53 | 4.691 | 4.125 | 0.409 | 0.360 | 76.15 | 0.5152 | 0.7501 |
EPDS3R | 0.8396 (0.76–0.91) | 60.78 | 89.66 | 83.78 | 72.22 | 5.875 | 5.166 | 0.437 | 0.384 | 73.39 | 0.5129 | 0.6092 |
All versions based on the standard EPDS cutoff of ≥13
ROC area area under the receiving operating characteristic, PPV positive predictive value, NPV negative predictive value, LR [C] conventional, LR [W] weighted by prevalence, k kappa statistic: moderate agreement (0.40–0.60), α Cronbach's alpha: stand-alone ≥0.75 cautious/acceptable 0.65–0.75, EPDS5R short version of the EPDS including items 2, 7, 8, 9, and 10, EPDS3R ultrashort version of the EPDS including items 2, 9, and 10