Depression Screening by PHQ-2 Calculator

Written by Great Medico

Updated September 24, 2026 •2 min read

Share Print Save

Screening scores can organize symptoms, but they should never flatten a person into a number. Depression Screening by PHQ-2 Calculator adds the responses in the way this instrument expects and keeps the result in a screening—not diagnostic—context.

What this calculator does

Depression Screening by PHQ-2 Calculator uses Little interest or pleasure in doing things and Feeling down, depressed, or hopeless to produce the lower phq-2 score used by this calculator. It only uses the fields shown in this calculator; it does not silently add tests, diagnoses, symptoms, or clinical variables that are absent from the interface. Uses standard health-calculator relationships where a stable equation exists; complex or policy-dependent tools expose assumptions/points so the result can be checked against the current clinical or public-health source.

How to use it

Enter or select Little interest or pleasure in doing things and Feeling down, depressed, or hopeless. Choose the response that matches the named questionnaire item and time frame; do not “round” symptoms up or down to reach a preferred total. If an input is unknown, it is better to leave the calculation unresolved than to invent a value.

How the calculation works

Each of the two PHQ-2 responses is scored 0–3 and the two values are added, producing a total from 0 to 6. This calculator flags totals above its lower range as potentially meeting a positive screening threshold.

Example

Using the calculator’s prefilled demonstration values, the primary output is 0 points, labeled “Lower PHQ-2 score”; Items scored is 2. That sample is useful for checking the calculation path, but real interpretation should use verified measurements from the same clinical or study context.

How to interpret the result

A higher PHQ-2 total means the two core depressive symptoms were endorsed more often. It is a prompt for further assessment, commonly with a fuller depression evaluation, rather than a severity diagnosis by itself.

Limitations and notes

PHQ-2 is a screen, not a diagnosis. A score cannot establish major depressive disorder, exclude other psychiatric or medical causes, or assess immediate safety by itself. Positive or concerning symptoms should lead to appropriate clinical assessment.