Table 1 Patient baseline characteristics before and after propensity score matching
Variables | Overall cohort | Matched cohort | ||||
|---|---|---|---|---|---|---|
C-ESD group (n = 81) | DCRB-ESD group (n = 46) | p value | C-ESD group (n = 35) | DCRB-ESD group (n = 35) | p value | |
Age | 60.33 ± 12.60 | 60.65 ± 12.82 | 0.89 | 58.09 ± 18.09 | 59.46 ± 12.56 | 0.63 |
Sex (male/female) | 0.00 | 1.0 | ||||
Male | 50 | 41 | 30 | 30 | ||
Female | 31 | 5 | 5 | 5 | ||
Location of lesions | 0.07 | 0.80 | ||||
Rectal sigmoid junction | 6 | 1 | 2 | 1 | ||
Sigmoid colon | 23 | 3 | 4 | 3 | ||
Descending-sigmoid junction | 7 | 4 | 1 | 4 | ||
Descending colon | 6 | 6 | 4 | 6 | ||
Splenic flexure | 1 | 2 | 1 | 1 | ||
Transverse colon | 11 | 6 | 8 | 5 | ||
Hepatic flexure | 6 | 6 | 3 | 2 | ||
Ascending colon | 14 | 9 | 7 | 5 | ||
Cecum | 7 | 9 | 5 | 8 | ||
Unfavorable location | 36 | 24 | 0.30 | 17 | 17 | 0.78 |
Lesion size | 0.98 | 0.97 | ||||
< 30 mm | 55 | 32 | 22 | 23 | ||
30–50 mm | 24 | 13 | 12 | 11 | ||
> 50 mm | 2 | 1 | 1 | 1 | ||
Lesion area (mm2) [Median, IQR] | 500, 490.0 | 420, 480.0 | 0.63 | 500,675 | 360,525 | 0.30 |
Lesion circumference ratio | 0.92 | 1.0 | ||||
< 2/3 | 79 | 45 | 34 | 34 | ||
> 2/3 | 2 | 1 | 1 | 1 | ||
LST classification | 0.00 | 0.81 | ||||
LST-G | 62 | 19 | 19 | 18 | ||
LST-NG | 19 | 27 | 16 | 17 | ||
Cases of each CS-CRESD score | 0.14 | 0.99 | ||||
0 | 22 | 3 | 3 | 3 | ||
1 | 23 | 18 | 14 | 15 | ||
2 | 23 | 15 | 12 | 12 | ||
3 | 10 | 7 | 4 | 3 | ||
4 | 2 | 2 | 1 | 1 | ||
5 | 1 | 1 | 1 | 1 | ||