Fig. 2From: Do task and item difficulty affect overestimation of one’s hand hygiene compliance? A cross-sectional survey of physicians and nurses in surgical clinics of six hospitals in GermanyOverall hand hygiene compliance among physicians and nurses by different operationalizations in the WACH-study*. Note: *Whiskers indicate 95%-confidence intervals. **Comparison between physicians and nurses: p < 0.001Back to article page