Table 2 Multivariate analyses of survival after surgery using the Cox’s proportional hazard model according to obesity status.

From: Obesity paradox as a new insight from postoperative complications in gastric cancer

    

Obese patients

Non-obese patients

 

Multivariate a

Multivariate a

HR b

95% CI c

P value

HR b

95% CI c

P value

Age

75 ≤ 

versus

 < 75

     

2.09

1.58

–

2.76

 < 0.001

pStage

II + III

versus

I

5.99

2.96

–

12.12

 < 0.001

5.42

3.92

–

7.49

 < 0.001

Surgical approach

Open

versus

Lap

     

3.79

2.35

–

6.11

 < 0.001

Lymphadenectomy

D2 ≤ 

versus

 < D2

     

1.95

1.43

–

2.65

 < 0.001

PAIC d

( +)

versus

( − )

4.22

2.11

–

8.44

 < 0.001

1.82

1.26

–

2.62

 < 0.001

  1. a Multivariate survival analysis was performed using Cox’s proportional hazard model.
  2. b HR: Hazard ratio.
  3. c CI: Confidence interval.
  4. d Postoperative abdominal infectious complications: anastomotic leakage, pancreatic fistula, and intra-abdominal abscess in grade II or high of Clavien–Dindo classification.
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