The study is more positive than the 31% conveys.

https://www.ctvnews.ca/health/article/self-diagnosing-with-a...

The researchers compared ChatGPT-4 with its earlier 3.5 version and found significant improvements, but not enough.

In one example, the chatbot confidently diagnosed a patient’s rash as a reaction to laundry detergent. In reality, it was caused by latex gloves — a key detail missed by the AI, which had been told the patient studied mortuary science and used gloves.

...

While the researchers note ChatGPT did not get any of the answers spectacularly wrong, they have some simple advice.

“When you do get a response be sure to validate that response,” said Zada.

Which should be standard advice in most situations.