Use of the impedance threshold device in cardiopulmonary resuscitation

Table 4 Hospital discharge rates in various human studies

First author	CPR method	Hospital discharge rates (%)	↑(%) with ITD	P-values
Thigpen et al[58]	S-CPR	17.2	62	0.034
	S-CPR + ITD	27.9
Davis et al[61]	S-CPR	20.7	73	< 0.001
	S-CPR + ITD	35.8
Aufderheide et al[54]	S-CPR	7.9	98	< 0.001
	S-CPR + ITD	15.7
Lurie et al[63]	S-CPR	9.3	83	0.0373
	S-CPR + ITD	17