Fact · Dictation software
-1.7%change in time-in-note versus control (not significant)
Physicians who used Microsoft DAX Copilot showed no statistically significant change in time-in-note compared with the control group.
Checked against its source on October 16, 2026
In the source's own words
“whereas DAX users exhibited no significant change versus the control group (-1.7%; 95% CI, -9.4% to +5.9%; P=0.66)”
Ambient AI Scribes in Clinical Practice: A Randomized Trial, Lukac PJ et al., NEJM AI, 2025, Results.
Open the original (DOI 10.1056/aioa2501000)- What it measures
- The DAX arm used the tool in 33.5 percent of its 24,696 visits. The difference between the two products is itself not tested in the abstract.
- What it does not show
- No significant change does not show that DAX has no effect. The confidence interval includes both a 9.4 percent reduction and a 5.9 percent increase.
Source
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