Figure 2: Correlation between median hand hygiene improvement of improving healthcare workers and overall improvement in hand hygiene compliance per hospital HH, hand hygiene; pp, percentage points associated with a higher activity index, with being a physician or medical student, and higher baseline HH compliance. This study is important, because understanding the patterns and dynamics of individual HH compliance in response to an intervention might help to better tailor improvement efforts. When individual responses to the intervention diverge strongly one might suspect factors that concern HCWs individually. In the contrary case, where all HCWs respond with a similar but smaller increase in HH compliance, contributing to the same overall result, systemic factors might be sought and addressed. For example, in addition to a high baseline compliance, these might include a flawed handrub dispenser placement, a high activity index, or a low nurse‐to‐patient ratio. Indeed, a higher nurse‐ to‐patient ratio was independently associated with a higher HH improvement in this study. Moreover, the ICU with the highest nurse‐to‐patient ratio (ICU E) was the only one in which the activity index was not negatively associated with HH compliance. This suggests that the nurse‐to‐patient ratio is a relevant variable to target as a risk for low HH compliance. The negative effect of a 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 40 Overall increase in HH (pp) Median HH improvement (pp) in improving healthcare workers Spearman rank 0.79 (95% CI 0.08 ‐ 0.97; P‐value 0.03) A F B C G D E
RkJQdWJsaXNoZXIy MTk4NDMw