Physiological parameters at baseline.

Note: Amp and AUC were calculated as the average of the data collected 30s before the detect time.No statically significant differences were detected in any parameters between the two groups.LQ group: low quality resuscitation group; HQ group: high quality resuscitation group; HR: heart rate; CPP: coronary perfusion pressure; PETCO2: pressure of end-tidal carbon dioxide; AUC: area of under the curve; Amp: amplitude of POP; PVA: Pulse Oximeter Voltage Amplitude; PVPG: Pulse Oximeter Voltage Plehtysmography.Physiological parameters at baseline.