Table 1 Demographic and clinical characteristics

Number (male: female)

410 (127: 283)

106 (37: 69)

0.170

Age (year mean ± SD)

59 ± 11

65 ± 10

<0.0001

Weight (kg)

54.5 ± 9.2

57.1 ± 10.9

0.204

Values of circulation parameters on arrival at office

 SBP (mmHg)

133 ± 19

165 ± 22

<0.0001

 DBP (mmHg)

76 ± 13

99 ± 20

<0.0001

 PR (bpm)

79 ± 13

90 ± 19

<0.0001

 RPP (bpm × mmHg)

10,574 ± 2,614

12,367 ± 5,771

<0.0001

Preoperative oral nifedipine

0

44 (42%)

<0.0001

Duration of surgery (min)

40 ± 20

35 ± 17

0.025

Duration of sedation (min)

69 ± 25

65 ± 22

0.114