Fig. 4From: Trends, risk factors and outcomes of healthcare-associated infections in a neonatal intensive care unit in Italy during 2013–2017Comparison between the two study periods (2006–2010 and 2013–2017) for the CLABSI incidence densities (95% CI) per 1000 catheter days by etiology (a) and VAP incidence densities (95% CI) per 1000 days of ventilation utilization by etiology (b). P-values are obtained using Poisson Regression for testing whether incidence densities significantly differ between the two periods for each etiologyBack to article page