Median steps per day and compliance with wearing activity monitor during the 6-week randomized phase.

IQR = interquartile range; SD = standard deviation.*Residents in intervention group wore an unblinded monitor (with visual activity feedback) during both Phase 1 (randomized) and Phase 2 (team competition).†Residents in the control group wore a blinded monitor (no feedback) during Phase 1 and an unblinded monitor during Phase 2.