Fig. 3From: Effect of ultrasound-guided central venous catheter insertion on the incidence of catheter-related bloodstream infections and mechanical complicationsMonthly time-series incidence of CRBSI. The interrupted time-series analysis did not reveal a significant gap and trend of the impact of the ultrasound-guided insertion maneuver according to the time-varied incidence before and after the intervention (dotted line, between December 2011 and January 2012)Back to article page