Table II.

Changes in MAP of four groups of patients at different time points before anesthesia induction and before and after skin incision.

Group	n	T0	T1	T2	T3	T4	T5	T6
Group D	20	90.25±5.13	60.88±5.22a	62.50±5.29a	63.37±5.61a	64.59±5.87a	66.32±6.03a	67.06±6.33a
Group S	20	91.33±5.59	62.02±5.31b	63.15±5.12b	64.37±5.50b	65.45±5.99b	67.09±5.25b	68.18±5.27b
Group C1	20	88.71±5.01	66.21±6.01	67.30±6.26	67.54±6.54	70.07±6.72	73.92±6.88	76.39±6.99
Group C2	20	88.92±5.34	67.56±6.21	69.59±6.77	70.32±6.79	72.55±6.98	76.90±7.21	77.99±7.45
F-value		1.083	6.371	6.593	5.427	6.486	8.443	14.477
P-value		0.362	0.0007	0.0005	0.0011	0.0006	0.0004	0.0000

^aP<0.05 Group D vs. Group C1

^bP<0.05 Group S vs. Group C2. MAP, minimum alveolar concentration.