Table 2.

Comparison of mean arterial pressure and heart rate at different time points (n=58, x̅ ± sd)

Indicator	Group	T0	T1	T2	T3	F	P
MAP (mmHg)	Observation group (n=58)	91.32±7.83	89.67±5.35	90.63±7.25	88.44±6.54	1.954	0.122
	Control group (n=58)	90.20±6.41	91.93±6.72	91.81±3.64	90.17±4.36	1.858	0.138
	t	0.689	1.429	1.108	1.674
	P	0.492	0.156	0.270	0.097
HR (times/min)	Observation group (n=58)	79.42±6.47	60.76±5.72	65.47±6.67	67.90±5.26	103.27	0.000
	Control group (n=58)	77.93±6.63	74.03±5.34	76.52±5.28	79.71±5.21	2.361	0.081
	t	1.225	12.915	9.892	12.149
	P	0.223	0.000	0.000	0.000

Note: T0: before anesthesia induction, T1: immediately after endotracheal intubation, T2: 1 h after one-lung ventilation; T3: 10 min before the end of operation. MAP: mean arterial pressure; HR: heart rate.