Eliminating Risk of Intubation in Very Preterm Infants with Noninvasive Cardiorespiratory Support in the Delivery Room and Neonatal Intensive Care Unit

Figure 5

Annual trends in conventional ventilation after initial resuscitation 2005-2017. (a) Unadjusted control chart with the orange shaded area representing the control limits and orange line representing the rate of conventional ventilation use in our center. The purple line represents the 23 regional NICUs and the blue line represents all 140 NICUs in CPQCC (California Perinatal Quality Care Collaborative). (b) The CUSUM chart shows possible points of temporal change. (c) The volume bar shows the sample size and the event incidence that subdivides the bar.