Current Guideline of Chest Compression Depth for Children of All Ages May Be Too Deep for Younger Children

Figure 3

Compression depth to Cd ratios when chest compressions were performed at 1/3 of the APd or 5 cm by age group among patients aged 1–18 years. The white and black circles represent the mean ratios. The gray area represents the range of compression depth to Cd ratio when chest compressions were performed between 5 cm (47.3%) and 6 cm (56.7%) in adults. The gray bold line and the gray double line are the boundaries that indicate the residual depth of 1 cm and 2 cm, respectively. APd: anteroposterior diameter; Cd: compressible diameter.