Table 3.

Rescuers’ physiologic parameters before and after performing ECC

	Before ECC Mean ± SD	After ECC Mean ± SD	Mean difference (95% CI of the difference)	p-value
Two-handed ECC
Systolic blood pressure	117.64 ± 14.95	126.50 ± 13.81	− 8.86 (− 12.56 ~ − 5.16)	<  0.001*
Diastolic blood pressure	77.55 ± 76.07	76.07 ± 8.53	1.47 (− 0.90 ~ 3.85)	0.218
Mean arterial pressure	90.90 ± 10.77	92.88 ± 9.60	− 1.97 (− 4.35 ~ 4.13)	0.103
Heart rate	76.66 ± 0.02	86.11 ± 12.90	−9.46 (− 6.38 ~ − 6.22)	< 0.001*
One-handed ECC
Systolic blood pressure	119.40 ± 14.49	125.58 ± 15.83	− 6.17 (− 10.54 ~ − 1.81)	0.007*
Diastolic blood pressure	76.24 ± 8.63	77.93 ± 9.82	− 1.68 (− 4.40 ~ 1.02)	0.217
Mean arterial pressure	98.03 ± 4.97	93.81 ± 10.76	4.22 (− 9.88 ~ 1.83)	0.550
Heart rate	77.58 ± 9.43	87.91 ± 14.46	− 10.33 (− 13.58 ~ − 7.08)	<  0.001*

ECC external chest compression

* p < 0.05, significant difference