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Table 6 Univariate and multivariate analyses of the risk factors for disease-free survival in the PSM cohort

From: Surgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patients

Variables

Univariate

P

Multivariate

P

 

HR

95% CI

 

HR

95% CI

 

Age, years

  

0.059

  

0.128

 < 65

Reference

  

Reference

  

 ≥ 65

1.278

0.990–1.650

 

1.223

0.944–1.586

 

Gender

  

0.852

   

 Female

Reference

     

 Male

0.974

0.740–1.282

    

Postoperative morbidity

  

0.267

   

 No

Reference

     

 Yes

0.734

0.419–1.275

    

BMI, kg/m2

  

0.040

  

0.059

 ≥ 25

Reference

  

Reference

  

 < 25

1.520

1.018–2.267

 

1.591

1.049–2.414

 

ASA score

  

0.435

   

 0–1

Reference

     

 ≥ 2

1.056

0.382–2.912

    

Histology type

  

0.121

   

 Well/moderately

Reference

     

 Poorly/undifferentiated

1.415

1.078–1.862

    

Tumor size, cm

  

0.043

  

0.751

 < 4

Reference

  

Reference

  

 ≥ 4

1.299

1.009–1.674

 

0.958

0.737–1.246

 

Pathologic T stage

  

0.000

  

0.019

 T2

Reference

     

 T3-T4a

3.332

1.805–6.149

 

3.429

1.229–9.568

 

Pathologic N stage

  

0.000

  

0.032

 N negative

Reference

     

 N positive

2.985

2.080–4.283

 

2.370

1.075–5.225

 

Pathologic TNM stage

  

0.000

  

0.024

 IB

Reference

  

Reference

  

 IIA-IIIC

4.016

2.113–7.635

 

3.812

1.445–14.325

 

 Surgical procedure

  

0.710

   

 RADG

Reference

     

 LADG

0.953

0.741–1.227

    
  1. RADG robotic-assisted distal gastrectomy, LADG laparoscopic-assisted distal gastrectomy, BMI body mass index, HR hazard ratio, ASA American Society of Anesthesiologists, CI confidence interval
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World Journal of Surgical Oncology

ISSN: 1477-7819

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