Table 1.

Properties and 95% confidence intervals of the Patient Health Questionnaire-9 (PHQ-9) and Edinburgh Postnatal Depression Scale (EPDS), at the cutoff points of maximum sensitivity and specificity for screening for MDE among adults in the community

Instrument	Sensitivity	Specificity	PPV	PLR
PHQ-9 ≥ 9	77.5% (61.5–89.2)	86.7% (83.0–89.9)	36.5% (26.3–47.6)	5.8 (4.3–7.9)
EPDS ≥ 8	80.0% (64.4–90.9)	87.0% (83.3–90.1)	37.6% (27.4–48.8)	6.1 (4.6–8.3)

MDE major depressive episode, PPV positive predictive value, PLR positive likelihood ratio