How accurate is the EPDS?

Short answer: the EPDS is a well-validated screening tool — good at flagging who should have a fuller evaluation, not at handing out a diagnosis. It was developed by Cox, Holden & Sagovsky in 1987 and has been tested against clinical interviews in independent studies. The most widely used and validated perinatal depression screen in the world, translated into dozens of languages and usable both during pregnancy and after birth.

What the numbers mean

Sensitivity is how often the test correctly flags people who do have the condition; specificity is how often it correctly clears those who don't. High figures on both mean the EPDS misses few real cases while raising few false alarms — which is exactly what you want from a first-pass screen.

The honest limits

No screening tool is perfect, and self-administration online adds its own caveats:

• It deliberately leaves out physical symptoms (tiredness, sleep) that are normal after birth, so it focuses on mood.
• Cutoffs vary by setting; some services screen at 10, others at 13, so borderline scores still merit a conversation.
• It screens for likely depression; only a clinician can diagnose it, and anxiety can also raise the score.

Does taking it online change the accuracy?

The questions and scoring here are identical to the clinical version, so the instrument itself is unchanged. What differs is context: a clinician also weighs your history, rules out other causes, and interprets borderline scores. That's why every result here points you toward a professional rather than standing in for one. Reproducing the instrument faithfully is our job; diagnosing is theirs.