A study published in JAMA Psychiatry raises questions about how people interpret the Patient Health Questionnaire (PHQ), a screening tool used since the 1990s and mandated by agencies such as the National Institutes of Health. The research was led by Zachary Cohen, an assistant professor at the University of Arizona.
About 850 participants completed a PHQ and then read a hypothetical scenario: oversleeping nearly every day for a week but not feeling bothered, for example on vacation. Responses were inconsistent: only 328 participants (38%) chose "not at all" in that scenario. Only 146 participants (17%) said they would answer future PHQs based on how much symptoms "bother" them rather than only on frequency.
The authors warn that this inconsistency can produce misleading data. They give examples such as passive sleep data from smartwatches conflicting with PHQ answers, or appetite changes from drugs like Ozempic being misread as depression if the "bothered by" element is ignored. They recommend changing PHQ wording to separate frequency from distress and call for further studies to test those changes.
Difficult words
- mandate — officially require something by law or rulemandated
- hypothetical — imagined for discussion or for testing
- inconsistent — not the same in every case
- misleading — giving the wrong idea or impression
- distress — strong worry or emotional pain
- oversleep — sleep more than usual or intendedoversleeping
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Should health questionnaires ask about both how often symptoms happen and how much they bother someone? Why or why not?
- What problems could appear if smartwatch data and questionnaire answers do not match?
- If you filled a questionnaire like the PHQ, would you answer based on frequency or how much symptoms bother you? Explain your choice.
Related articles
Shingles vaccine linked to lower dementia diagnoses in older adults
A study of people 66 and older in skilled nursing facilities found that those who received the recombinant shingles vaccine (RZV, Shingrix) were less likely to be diagnosed with dementia over four years, though causation is not certain.
Contrast test can show early vision problems in older adults
A new study links a Pelli-Robson contrast sensitivity test to everyday vision difficulties for older adults. The test finds problems that routine high‑contrast eye charts can miss and may help clinicians detect treatable early changes.
