by Henry Bodkin
21 May 2017 • 10:00pm
Depression is being overdiagnosed because GPs are too reliant on a “basic” questionnaire designed by a pharmaceutical company which also manufacturers psychiatric drugs, campaigners have warned.
The easy-to-use nine-question form sets the threshold for the condition “far too low” and results in patients being wrongly diagnosed and medicated, according an expert at the Council for Evidence-Based Psychiatry.
The PHQ-9 Patient Health Questionnaire was developed by academics funded by Pfizer, which owned the intellectual property and distribution rights.