Table 1.
Baseline characteristics of the study participants
| Parameter | CEMR (n = 64) |
UEMR (n = 66) |
Total (n = 130) |
P value |
|---|---|---|---|---|
| Age, mean (SD), yrs | 57.6 ± 9.8 | 55.1 ± 11.2 | 56.4 ± 10.6 | 0.177a |
| Sex, n (%) | ||||
| Male | 35 (54.7) | 40 (60.6) | 75 (57.7) | 0.495b |
| Female | 29 (45.3) | 26 (39.4) | 55 (42.3) | |
| Current alcohol, n (%) | 0.866b | |||
| Yes | 13 (20.3) | 11 (16.7) | 24 (18.5) | |
| No | 39 (60.9) | 42 (65.6) | 81 (62.3) | |
| Unknow | 12 (18.8) | 13 (19.7) | 25 (19.2) | |
| Current tobacco, n (%) | 0.910b | |||
| Yes | 11 (17.2) | 13 (19.7) | 24 (18.5) | |
| No | 41 (64.1) | 40 (60.6) | 81 (62.3) | |
| Unknow | 12 (18.8) | 13 (19.7) | 25 (19.2) | |
| Institution, n (%) | 0.441b | |||
| A | 51 (79.7) | 51 (77.3) | 102 (78.5) | |
| B | 10 (15.6) | 14 (21.2) | 24 (18.4) | |
| C | 3 (4.7) | 1 (1.5) | 4 (3.1) | |
BMI body mass index, CEMR conventional endoscopic mucosal resection, UEMR, underwater endoscopic mucosal resection. a Two-sample t test. b Chi-square test
Institution A: Ningbo First Hospital, Ningbo, China
Institution B: Ninghai Second Hospital, Ningbo, China
Institution C: Haishu Second Hospital, Ningbo, China