Table 4 Univariate and multivariate analysis of clinical factors associated with operative time ≥ 150 min

Sex (female)

0.51

0.24–1.10

0.09

0.29

0.31–2.10

0.02

Age (≥ 46)

0.93

0.44–1.96

0.84

1.24

0.48–3.24

0.66

BMI (≥ 24)

0.82

0.42–1.86

0.56

0.41

0.13–1.21

0.15

History of abdominal surgery (yes)

1.88

0.71–4.96

0.20

2.90

0.91–9.22

0.07

Preoperative hypertension (yes)

0.93

0.42–2.04

0.85

0.92

0.28–3.04

0.89

Preoperative diabetes (yes)

1.45

0.50–4.17

0.49

1.64

0.43–6.16

0.47

Tumor location (left)

1.72

0.79–3.76

0.18

1.73

0.65–4.58

0.27

Tumor size (≥ 6)

1.59

0.74–3.41

0.23

0.60

0.22–1.67

0.33

Preoperative SBP (> 125)

1.13

0.54–2.36

0.75

2.68

0.74–9.66

0.13

Preoperative DBP (> 82)

0.82

0.39–1.71

0.59

0.44

0.15–1.32

0.14

Operative method (LTA)

2.85

1.23–6.62

0.02

4.25

1.39–12.98

0.01

Blood loss (> 100 ml)

0.86

0.78–1.00

 < 0.01

1.01

0.98–1.01

 < 0.01