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Table 3 Factors associated with postoperative mortality and morbidity for patients undergoing gastrectomy with D1/D1+ or D2 lymphadenectomy

From: A comparison of the operative outcomes of D1 and D2 gastrectomy performed at a single Western center with multiple surgeons: a retrospective analysis with propensity score matching

Variables Before PSM (n = 204) After PSM (n = 78)
No. of patients aComplications 30-day mortality No. of patients aComplications 30-day mortality
n % p n % p   n % p n % p
Age     0.008*    0.557     0.006*    0.265
 < 70 108 57 (53%)   2 (2%)   43 16 (37%)   0 (0%)  
 ≥ 70 96 68 (71%)   3 (3%)   35 24 (69%)   1 (3%)  
Gender     0.892    0.117     0.624    0.502
 Male 138 85 (62%)   5 (4%)   54 28 (52%)   1 (2%)  
 Female 66 40 (61%)   0 (0%)   24 11 (46%)   0 (0%)  
BMI     0.502    0.228     0.784    0.595
 ≥ 30 29 15 (52%)   1 (3%)   17 8 (47%)   0 (0%)  
 < 30 135 79 (59%)   1 (1%)   61 31 (51%)   1 (2%)  
Hemoglobin level     0.830    0.075     0.530    0.688
 ≤ 100 25 17 (68%)   2 (8%)   12 7 (58%)   0 (0%)  
 > 100 173 107 (62%)   3 (2%)   66 31 (47%)   1 (2%)  
Tumor location     0.009*    0.406     0.070    0.302
 Proximal, middle 81 57 (70%)   2 (2%)   38 23 (61%)   1 (3%)  
 Distal 107 55 (51%)   1 (1%)   40 16 (40%)   0 (0%)  
Tumor stage (TNM)     0.145    0.768     0.425    0.087
 III, IV 67 46 (69%)   2 (3%)   19 11 (58%)   1 (5%)  
 I, II 131 76 (58%)   3 (2%)   55 26 (47%)   0 (0%)  
Chemotherapy     0.849    0.699     1.000    0.252
 Yes 99 60 (61%)   2 (2%)   34 17 (50%)   0 (0%)  
 No 105 65 (62%)   3 (3%)   44 22 (50%)   1 (2%)  
Gastrectomy type     0.020*    0.021*     0.018*    0.076
 Total 66 48 (73%)   4 (6%)   19 14 (74%)   1 (5%)  
 Partial 138 77 (56%)   1 (1%)   59 25 (42%)   0 (0%)  
Lymphadenectomy type     0.314    0.085     0.113    0.314
 D1/D1+ 54 30 (56%)   3 (6%)   39 16 (41%)   1 (3%)  
 D2 150 95 (63%)   2 (1%)   39 23 (59%)   0 (0%)  
Splenectomy +/− pancreatectomy     0.783    0.694     1.000    0.870
 Yes 6 4 (67%)   0 (0%)   2 1 (50%)   0 (0%)  
 No 198 121 (61%)   5 (3%)   76 38 (50%)   1 (1%)  
  1. *p < 0.05
  2. aComplications is defined as Clavien-Dindo grades I, II, III, and IV