Final answer:
Compression depth refers to the amount of pressure applied during chest compressions in CPR for different age groups.
Step-by-step explanation:
Compression depth refers to the amount of pressure applied during chest compressions in CPR (Cardiopulmonary Resuscitation) for different age groups.
For Adult CPR, the recommended compression depth is at least 2 inches (5 centimeters). For Child CPR, the compression depth is about one-third to half the depth of the chest, which is about 2-2.4 inches (5-6 centimeters). For Infant CPR, the compression depth is about one-third to half the depth of the chest, which is about 1.5 inches (4 centimeters). For Newborn CPR, the recommended compression depth is about 1.5 inches (4 centimeters).
It's important to note that these guidelines may vary depending on the specific CPR guidelines followed by different organizations or medical professionals.