Table 1.

Patient characteristics

	Group (n = 28)	Group S (n = 20)	Group NS (n = 8)
Male / Female ratio	14 / 14	9/11	5/3
Age (years)	58 (13)	56 (13)	62 (12)
Length (cm)	170 (8.2)	170 (8.6)	171 (7.5)
Weight (kg)	72.5 (13.0)	74.6 (13.2)	67 (11.5)
BMI	25.0 (3.8)	25.9 (3.6)	22.8 (3.5)
Systolic BP (mmHg)	129 (18)	131 (19)	123 (17)
Diastolic BP (mmHg)	76 (8)	72 (7)	78 (8)
MAP (mmHg)	94 (10)	96 (10)	89 (9)
HR (bpm)	75 (10)	72 (10)	80 (10)
ASA I / II / III	2 / 19 / 7	1 / 14 / 5	1 / 5 / 2
Smoker (F / N / Y)	9 / 11 / 8	7 / 7 / 6	2 / 4 / 2
Beta-blocking agent (Y / N)	2 / 26	1 / 19	1 / 7
ACE-inhibitor (Y / N)	4 / 24	2 / 18	2 / 6
Duration of surgery (min)	567 (84)	575 (75)	548 (107)

Data are expressed in mean (SD)

BMI Body Mass Index, MAP Mean Arterial blood Pressure, HR Heart Rate, ASA American Society of Anesthesiologist physical status