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Table 4 Univariate and multivariate analyses of factors associated with RLN count ≥ 25

From: Impact of retrieved lymph node count on short-term complications in patients with gastric cancer

Characteristics Univariate Multivariate
OR 95% CI P OR 95% CI P
Age ≥ 70 0.873 0.689–1.105 0.259    
Gender
 Male 1.043 0.828–1.312 0.723    
 Female       
BMI (kg/m2) 0.972 0.944–1.002 0.064    
Preoperative comorbidities
 Previous abdominal surgery 1.030 0.768–1.380 0.844    
 Diabetes mellitus 0.960 0.670–1.375 0.822    
 Hypertension 0.852 0.685–1.059 0.148    
Preoperative laboratory data
 Serum albumin < 35 g/L 1.484 1.048–2.102 0.026    
 CRP ≥ 10 g/L 1.195 0.827–1.726 0.343    
ASA ≥ 3 0.892 0.725–1.098 0.282    
Mode of surgical approach
 Laparoscopic 1.282 0.808–2.036 0.292    
 Open       
Type of resection    < 0.001    < 0.001
 Total gastrectomy   Reference    Reference  
 Distal gastrectomy 0.649 0.522–0.807 < 0.001 0.716 0.572–0.896 0.004
 Proximal gastrectomy 0.334 0.231–0.485 < 0.001 0.357 0.245–0.519 < 0.001
Operation time 1.001 1.000–1.003 0.086    
Blood loss 1.000 1.000–1.001 0.482    
Tumor site    0.304    
 Cardia/fundus   Reference     
 Body 0.903 0.709–1.148 0.404    
 Pylorus/antrum 1.119 0.869–1.442 0.382    
Tumor invasion (T3–4) 1.613 1.310–1.987 < 0.001 1.299 1.010–1.670 0.042
Lymph node metastasis 1.585 1.286–1.952 < 0.001 1.304 1.018–1.669 0.035
pTNM stage (≥ III) 1.555 1.263–1.914 < 0.001    
Lauren subtype    0.082    
 Intestinal   Reference     
 Diffuse 1.040 0.536–2.019 0.908    
 Mixed 1.388 0.709–2.716 0.339    
 Unknown 1.328 0.677–2.603 0.409    
  1. BMI body mass index, CRP C-reactive protein, ASA American Society of Anesthesiologists, RLNs retrieved lymph nodes, OR odds ratio, CI confidence interval