Table 1: Performance of the senior residents in assessing glass slides and digital whole-slide scanned images of slides

Slides assessed	Estimated marginal mean (95% CI)	p value
Group A slides*	7.06/12 (6.49-7.63)	0.001
Group B slides*	9.08/12 (8.51-9.65)	0.001
Glass slides	8.23/12 (7.72-8.87)	0.3
Digital slides	7.84/12 (7.28-8.41)	0.3

Note: CI = confidence interval.

*Glass and digital slides.