Table 2.

Chest compression outcome and fatigue variables; OH=One hand, TH=Two hand.

CPR group	Child	Infant
	OH vs. TH mean±SD, p-value	TT vs. TF mean±SD, p-value
Compression Variables
Compression depth (mm)	29.1±10.2 vs. 32.9±8.5, 0.26	13.8±2.5 vs. 8.7±1.9, <0.001
Peak compression pressure (mm Hg)	259±103 vs. 323±106, 0.09	154±54 vs. 85±23, <0.001
Mean compression pressure (mmHg)	88±37 vs. 101±35, 0.32	54±20 vs. 28±12, <0.001
Compression rate/minute	114±28 vs. 125±35, 0.33	138±24 vs. 146±34, 0.45
Actual compressions cycles	386±113 vs. 417±108, 0.43	474±84 vs. 495±114, 0.56
Fatigue Variables
Change/min in heart rate from baseline	38±15 vs. 41±12, 0.61	22±10 vs. 15±6, 0.04
Change/min in resp rate from baseline	8±5 vs. 8±4, 0.84	4±5 vs. 3±4, 0.53
Recovery time to baseline (sec)	233±116 vs. 293±171, 0.25	291±230 vs. 199±125, 0.17