Table 1 Demographic characteristics and intraoperative variables of the patients.

From: The feasibility and accuracy of the method for selecting the optimal size of double-lumen tube in thoracic surgery: a prospective, randomized controlled trial

Characteristics of patients

N = 59

CI (n = 29)

CC (n = 30)

P

Gender (M/F, n)

28/31

12/17

16/14

0.36

Age (years)

55.3 (12.7)

54.6 (12.7)

56.0 (12.8)

0.55

Height (cm)

166.7 (8.6)

166.3 (8.6)

167.1 (8.7)

0.61

Weight (kg)

67.3 (11.9)

66.8 (11.7)

67.8 (12.4)

0.94

IBW (kg)

64.3 (7.1)

64.2 (7.2)

64.4 (7.1)

0.86

BMI (kg/m2)

24.1 (3.5)

24.1 (3.5)

24.2 (3.5)

0.96

ASA (I/II, n)

21/38

12/17

9/21

0.36

TDT (mm)

15.7 (2.4)

15.5 (2.1)

15.9 (2.7)

0.41

LDT (mm)

16.9 (3.3)

16.9 (2.8)

16.8 (3.8)

0.78

TDB (mm)

16.0 (4.2)

16.0 (3.7)

16.1 (4.7)

0.98

LDB (mm)

12.4 (2.1)

12.3 (2.2)

12.5 (2.0)

0.57

TV of TLV (ml)

514.7 (56.6)

513.9 (57.3)

515.5 (56.9)

0.86

TV of OLV (ml)

386.5 (42.3)

385.5 (44.0)

386.6 (42.7)

0.88

Time of operation (min)

128.4 (50.8)

128.2 (47.9)

128.6 (54.3)

0.65

Time of OLV (min)

108.6 (47.6)

108.2 (45.3)

108.9 (50.5)

0.87

  1. Gender and ASA, Pearson's Chi-square test; other variables, Man-Whitney U test.
  2. IBW ideal body weight, BMI body mass index, TDT transverse inner diameter of trachea, LDT longitudinal inner diameter of trachea, TDB Transverse inner diameter of bronchus, LDB longitudinal inner diameter of bronchus, TV tidal volume, TLV two lungs ventilation, OLV one lung ventilation.
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