Retrospective Cohort Study
Copyright ©The Author(s) 2022.
World J Gastrointest Oncol. Sep 15, 2022; 14(9): 1711-1726
Published online Sep 15, 2022. doi: 10.4251/wjgo.v14.i9.1711
Table 3 Details of surgical and pathological results in the original samples before matching and after propensity score match in the two groups
Original samples
PSM
non-CC group (n = 124)
CC group (n = 126)
P value
non-CC group (n = 100)
CC group (n = 96)
P value
Interval time (d)0.0150.410
mean (SD)71.7 (21.9)77.9 (18.6)74.5 (20.1)76.8 (18.7)
Surgical method, n (%)0.2320.990
APR42 (33.9)31 (24.6)30 (30.0)29 (30.2)
LAR77 (62.1)91 (72.2)66 (66.0)63 (65.6)
Hartmann5 (4.0)4 (3.2)4 (4.0)4 (4.2)
Surgery time (h)0.6840.953
mean (SD)3.0 (1.3)3.1 (1.4)3.0 (1.3)3.0 (1.4)
Blood loss (mL)0.3450.407
mean (SD)75.4 (51.4)105.4 (145.5)74.5 (47.8)99.3 (105.0)
R0, n (%)123 (99.2)124 (98.4)0.57199 (99.0)94 (97.9)0.537
Numbers of dissected lymph nodes0.1940.502
mean (SD)9.1 (4.9)8.3 (5.0)9 (4.8)8.54 (5.0)
pT satge, n (%)0.4000.136
T021 (16.9)31 (24.6)17 (17.0)28 (29.2)
T16 (4.8)10 (7.0)5 (5.0)9 (9.4)
T241 (33.1)34 (27.0)32 (32.0)28 (29.2)
T354 (43.5)50 (39.7)44 (44.0)30 (31.2)
T42 (1.6)1 (0.8)2 (2.0)1 (1.0)
pN stage, n (%)0.5410.712
N090 (72.6)99 (78.6)72 (72.0)74 (77.1)
N126 (21.0)21 (16.7)22 (22.0)17 (17.7)
N28 (6.5)6 (4.8)6 (6.0)5 (5.2)
TRG, n (%)0.1230.015
021 (16.9)31 (24.6)17 (17.0)28 (29.1)
143 (34.7)51 (40.5)33 (33.0)41 (42.7)
259 (47.6)42 (33.3)49 (49.0)26 (27.1)0.176
31 (0.8)2 (1.6)1 (1.0)1 (1.1)
pT0-2N0, n (%)57 (46.0)66 (52.4)0.31146 (46.0)57 (59.4)0.061
pCR, n (%)18 (14.5)27 (21.4)0.15514 (14.0)24 (25.0)0.051