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Table 2 Interval of RGC according to variables

From: Clinicopathologic features of remnant gastric cancer after curative distal gastrectomy according to previous reconstruction method: a retrospective cohort study

VariablesInterval (month)Effect size (Cohen’ d)95% CIp value
Age (years)    
 < 65(n = 25)92.4 ± 67.7 (14–256)--0.208
 ≥ 65(n = 23)119.8 ± 80.7 (14–350)0.369− 0.202, 0.94 
Sex    
 Male (n = 42)109.2 ± 76.1 (14–350)--0.372
 Female (n = 6)79.8 ± 63.7 (15–179)− 0.393− 1.252, 0.465
Previous cancer stage    
 Stage I (n = 30)103.0 ± 80.1 (14–350) -0.810
 Stage II (n = 11)101.7 ± 58.1 (15–225)− 0.016− 0.707, 0.673
 Stage III (n = 7)122.8 ± 81.6 (28–256)0.247− 0.577, 1.071
Previous PRM (cm)    
 < 3 (n = 9)66.0 ± 77.3--0.077
 ≥ 3 (n = 39)114.7 ± 72.00.667− 0.068, 1.404 
Previous LI   0.857
 Positive (n = 17)102.9 ± 69.9--
 Negative (n = 31)107.1 ± 78.30.054− 0.536, 0.646
Previous VI   0.546
 Positive (n = 3)80.0 ± 60.25--
 Negative (n = 45)107.3 ± 75.80.362− 0.808, 1.533
Reconstruction method    
 Billroth I (n = 13)67 ± 34.5.5 (14–143)--0.003
 Billroth II (n = 35)119.9 ± 80.7 (14–350)1.0170.349, 1.686
Recurrence site    
 Non-anastomosis (n = 21)70.8 ± 53.6 (14–256)--0.002
 Anastomosis (n = 27)132.6 ± 78.3 (14–350)0.9530.352, 1.554
Differentiation    
 Differentiated (n = 21)125.6 ± 87.1 (14–350)--0.102
 Undifferentiated (n = 27)90 ± 60.6 (14–221)− 0.485− 1.063, 0.09
Lauren classification    
 Intestinal (n = 17)138.5 ± 88.5 (14–350)--0.044
 Diffuse (n = 18)76.2 ± 65.0 (14–206)− 0.805− 1.495, − 0.116
 Mixed (n = 13)103.0 ± 50.9 (27–190)− 0.474− 1.207, 0.257
RGC stage    
 Stage I (n = 24)109.7 ± 84.2 (14–350)--0.145
 Stage II (n = 12)72.0 ± 47.3 (15–190)− 0.605− 1.312, 0.101
 Stage III (n = 12)130.9 ± 69.2 (28–256)0.266− 0.429, 0.961
  1. RGC, remnant gastric cancer; PRM, proximal resection margin; LI, lymphatic invasion; VI, vascular invasion; Calculation of Cohen’s d, first row category is set to control group and lower row category is set to experimental group