Skip to main content

Table 1 (abstract P40). Diagnostic accuracy of the PHQ-9 by reference standard

From: Methods for Evaluation of medical prediction Models, Tests And Biomarkers (MEMTAB) 2018 Symposium

  Semi-structured
Reference Standard
N studies = 29
N participants = 6,725
N major depression = 924
Fully structured
Reference Standard
N studies = 14
N participants = 7,680
N major depression = 839
Difference across reference standards
(Semi- Fully)
Cutoff Sensitivity Specificity Sensitivity Specificity Sensitivity Specificity
5 0.98 0.55 0.93 0.54 0.05 0.01
6 0.98 0.63 0.91 0.61 0.07 0.02
7 0.98 0.69 0.86 0.69 0.12 0.00
8 0.95 0.75 0.82 0.75 0.13 0.00
9 0.91 0.80 0.74 0.79 0.17 0.01
10 0.88 0.85 0.70 0.84 0.18 0.01
11 0.84 0.89 0.62 0.87 0.22 0.02
12 0.79 0.91 0.57 0.89 0.22 0.02
13 0.70 0.93 0.49 0.92 0.21 0.01
14 0.64 0.95 0.44 0.94 0.20 0.01
15 0.56 0.96 0.35 0.96 0.21 0.00