Skip to main content

Table 1 Clinicopathological characteristics of 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

Variable   Before PSM (n = 204) aAfter PSM (n = 78)
   D1/D1+ (n = 54) D2 (n = 150)   D1/D1+ (n = 39) D2 (n = 39)  
   54 150   39 39  
   n % n % p b n % n % p b
Aged Mean (sd) c67.1 c(11.7) c65.5 c(12.75) 0.420 c67.4 c(11.5) 64.9 c(13.5) 0.387
Gender       0.604      1.000
  Male 35 (65%) 103 (69%)   27 (69%) 27 (69%)  
  Female 19 (35%) 47 (31%)   12 (31%) 12 (31%)  
BMIe Mean (sd) c26.7 c(5.46) c24.8 c(5.58) 0.049* c26.0 c(5.29) c24.4 c(6.35) 0.219
Hemoglobin level       0.932      0.530
  ≤ 100 g/L 7 (13%) 20 (13%)   5 (13%) 7 (18%)  
  > 100 g/L 47 (87%) 129 (86%)   34 (87%) 32 (82%)  
Tumor location       0.168      0.193
  Proximal 5 (9%) 30 (20%)   4 (10%) 6 (15%)  
  Middle 15 (28%) 31 (21%)   11 (28%) 17 (44%)  
  Distal 28 (52%) 79 (53%)   24 (62%) 16 (41%)  
TMN stage       0.119      0.280
  In situ 0 (0%) 4 (3%)   0 (0%) 4 (10%)  
  I 19 (35%) 44 (29%)   14 (36%) 16 (41%)  
  II 19 (35%) 49 (33%)   14 (36%) 11 (28%)  
  III 12 (22%) 48 (32%)   9 (23%) 7 (18%)  
  IV 4 (7%) 3 (2%)   2 (5%) 1 (3%)  
  Unknown 0 (0%) 2 (1%)   0 (0%) 0 (0%)  
T level       0.123      0.411
  T0 0 (0%) 4 (3%)   0 (0%) 2 (5%)  
  T1 15 (28%) 39 (26%)   11 (28%) 12 (31%)  
  T2 8 (15%) 18 (12%)   7 (18%) 7 (18%)  
  T3 22 (41%) 39 (26%)   15 (38%) 10 (26%)  
  T4 9 (17%) 48 (32%)   6 (15%) 6 (15%)  
  Unknown 0 (0%) 2 (1%)   0 (0%) 2 (5%)  
N category       0.831      0.523
  N0 26 (48%) 65 (43%)   18 (46%) 20 (51%)  
  N1 12 (22%) 35 (23%)   9 (23%) 12 (31%)  
  N2 7 (13%) 27 (18%)   5 (13%) 4 (10%)  
  N3 9 (17%) 23 (15%)   7 (18%) 3 (8%)  
Differentiation       0.389      0.422
  Well 1 (2%) 8 (5%)   1 (3%) 2 (5%)  
  Moderate 16 (30%) 52 (35%)   9 (23%) 14 (36%)  
  Poor 30 (56%) 65 (43%)   22 (56%) 15 (38%)  
  Unknown 7 (13%) 25 (17%)   7 (18%) 8 (21%)  
Chemotherapy       0.228      1.000
  Yes 30 (56%) 69 (46%)   22 (56%) 22 (56%)  
  No 24 (44%) 81 (54%)   17 (44%) 17 (44%)  
Gastrectomy type       0.011*      0.065
  Total 10 (19%) 56 (37%)   6 (15%) 13 (33%)  
  Partial 44 (81%) 94 (63%)   33 (85%) 26 (67%)  
Lymph node yielde Mean (sd) c15.7 c(10.1) 21.7 c(12.0) 0.001* 15.0 c(10.4) 20.3 c(11.5) 0.050*
Splenectomy +/− pancreatectomy       0.581      1.000
  No 53 (98%) 145 (97%)   38 (97%) 38 (97%)  
  Yes 1 (2%) 5 (3%)   1 (3%) 1 (3%)  
  1. *p < 0.05
  2. aMatched parameters—BMI, T-level, tumor location, chemotherapy
  3. bChi-square test
  4. cMean (sd)
  5. dMann-Whitney U test
  6. et test