Table 2.
Characteristics of all parameters analyzed.
| Characteristic | Total (n = 53) | V group (n = 27) | E group (n = 26) | P value |
|---|---|---|---|---|
| Age (years) median (IQR) | 70.2 (66.76) | 70 (65.3–75) | 70 (66–75.3) | 0.957∗∗ |
| Sex (male), n (%) | 55 (87.3) | 23 (85.2) | 22 (84.6) | 0.728∗ |
| Helicobacter pylori infection (positive), n (%) | 15 (28.3) | 7 (26.0) | 8 (30.8) | 0.766∗ |
| Diabetes, n (%) | 8 (12.7) | 3 (11.1) | 5 (19.2) | 0.467∗ |
| Location (upper, middle, lower) | 28, 20, 7 | 12, 10, 5 | 14, 10, 2 | 0.596∗ |
| Location (greater curvature, lesser curvature, anterior wall, posterior wall) | 13, 7, 11, 10 | 7, 13, 3, 4 | 6, 6, 8, 6 | 0.157∗ |
| Tumor size (mm), range, n (>20 mm) | 14.1 (4–38), 12 | 14.9 (4–38), 7 | 13.2 (4–35), 5 | 0.745∗ |
| Specimen size (mm), range, n (>30 mm) | 40.2 (26–80), 40 | 40.6 (30–54), 22 | 39.8 (26–80), 18 | 0.352∗ |
| Procedure duration (min), range, n (>60 min) | 43.3 (8–103), 14 | 45.5 (9–103), 8 | 41.1 (8–100), 6 | 0.757∗ |
IQR: interquartile range (a measure of variability, based on dividing a dataset into quartiles). A P value < 0.05 was considered to reflect significance. ∗Significant by Fisher's exact test. ∗∗Significant by the Mann–Whitney U test.