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Table 1 Demographic and clinical characteristics

From: Analgesic effect of the ultrasound-guided thoracolumbar paravertebral block in patients undergoing robot-assisted laparoscopic nephrectomy: a randomized controlled trial

Variable

TL-PVB(n = 50)

NO-PVB(n = 50)

p-Value

Gender (male/female)

25/25

26/24

0.84

Age (years)

54.78 ± 8.97

55.48 ± 8.77

0.69

Height (cm)

166.54 ± 6.56

165.70 ± 7.30

0.54

Weight (kg)

65.16 ± 8.30

65.24 ± 8.20

0.96

BMI (kg/m2)

23.50 ± 2.73

23.70 ± 1.98

0.67

ASA classification (I/II)

16/34

17/33

0.83

Operative site (left/right)

34/16

33/17

0.83

Duration of surgery (min)

164.32 ± 21.82

163.92 ± 23.63

0.93

  1. Numerical variables are expressed as mean ± SD. Categorical variables are expressed as number of patients. BMI, body mass index; ASA, American Society of Anesthesiologists