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Table 2 Univariate and multivariate analyses of characteristics associated with postoperative complications

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 1.581 1.232–2.029 < 0.001 1.578 1.219–2.044 0.001
Gender
 Male 0.765 0.597–0.979 0.033 0.710 0.551–0.916 0.008
 Female       
BMI (kg/m2) 0.988 0.956–1.020 0.449    
Preoperative comorbidities
 Previous abdominal surgery 0.996 0.722–1.374 0.982    
 Diabetes mellitus 1.156 0.787–1.700 0.460    
 Hypertension 1.128 0.891–1.428 0.317    
Preoperative laboratory data
 Serum albumin < 35 g/L 1.660 1.162–2.372 0.005 1.544 1.068–2.232 0.021
 CRP ≥ 10 g/L 1.315 0.892–1.938 0.167    
ASA ≥ 3 1.047 0.834–1.315 0.693    
Mode of surgical approach
 Laparoscopic 0.684 0.394–1.188 0.178    
 Open       
Type of resection    0.067    0.025
 Total gastrectomy   Reference    Reference  
 Distal gastrectomy 1.183 0.932–1.503 0.167 1.242 0.972–1.588 0.083
 Proximal gastrectomy 1.503 1.047–2.157 0.027 1.613 1.117–2.329 0.011
Operation time 1.002 1.001–1.004 0.009 1.003 1.001–1.005 0.002
Blood loss 1.000 1.000–1.001 0.094    
Tumor site    0.780    
 Cardia/fundus   Reference     
 Body 1.054 0.811–1.370 0.693    
 Pylorus/antrum 0.947 0.716–1.252 0.701    
Tumor invasion (T3–4) 1.216 0.968–1.527 0.093    
RLNs 0.991 0.979–1.004 0.165    
Lymph node metastasis 1.044 0.832–1.310 0.707    
LNR > 0.05 1.213 0.969–1.517 0.091    
LODDS > − 1.1 1.219 0.975–1.525 0.083    
pTNM stage (≥ III) 1.036 0.826–1.300 0.757    
Lauren subtype    0.952    
 Intestinal   Reference     
 Diffuse 0.866 0.427–1.754 0.689    
 Mixed 0.904 0.442–1.848 0.782    
 Unknown 0.925 0.452–1.894 0.832