TABLE 3.
Comparison of variables between LE and RR groups for G2 RNETs 1.5 cm or less
| Variable | Before PSM | After PSM | ||||
|---|---|---|---|---|---|---|
|
LE (n = 61) |
RR (n = 18) |
p |
LE (n = 18) |
RR (n = 6) |
p | |
| Sex, n (%) | 0.60 | 0.07 | ||||
| Female | 25 (80.6%) | 6 (19.4%) | 8 (100.0%) | 0 (0.0%) | ||
| Male | 36 (75.0%) | 12 (25.0%) | 10 (62.5%) | 6 (37.5%) | ||
| Age, y, median (IQR) | 51.0 (40.3–63.8) |
51.0 (41.0–64.0) |
0.58 | 61.0 (36.0–62.0) |
58.0 (37.3–64.8) |
0.38 |
| Distance from the anus, cm, median (IQR) | 5.0 (3.0–8.0) |
6.2 (4.0–8.5) |
0.001 | 5.0 (4.3–7.5) |
5.0 (2.0–8.0) |
0.14 |
| T stage, n (%) | 0.01 | – | ||||
| T1 + T2 | 61 (80.3%) | 15 (19.7%) | 18 (75.0%) | 6 (25.0%) | ||
| T3 + T4 | 0 (0.0%) | 3 (100.0%) | 0 | 0 | ||
| Lymph node metastasis, n (%) | <0.001 | – | ||||
| Negative | 61 (88.4%) | 8 (11.6%) | 18 (75.0%) | 6 (25.0%) | ||
| Positive | 0 (0.0%) | 10 (100.0%) | 0 | 0 | ||
| Microvascular invasion, n (%) | 0.13 | – | ||||
| Negative | 60 (78.9%) | 16 (21.1%) | 18 (75.0%) | 6 (25.0%) | ||
| Positive | 1 (33.3%) | 2 (66.7%) | 0 | 0 | ||
| Perineural invasion, n (%) | 0.23 | – | ||||
| Negative | 61 (78.2%) | 17 (21.8%) | 18 (75.0%) | 6 (25.0%) | ||
| Positive | 0 (0.0%) | 1 (100.0%) | 0 | 0 | ||
IQR = interquartile range; LE = local excision; PSM = propensity score matching; RNET = rectal neuroendocrine tumor; RR = radical resection.
Statistically significant (p <0.05) values are in bold.