+5 pts
widening of the light–dark accuracy gap
What the research found
A controlled study found that AI assistance widened the diagnostic accuracy gap between lighter and darker skin by about 5 percentage points, rather than narrowing it — compounded by benchmark datasets skewed heavily toward fair skin.
Why it matters for providers
Poorly-checked AI can systematise existing blind spots and deepen inequity for the patients already least well served.
Original source
Northwestern University
Peer-reviewed or official source — the most reliable tier.