Table 2.
Patient characteristics.
| Development set (n = 81) | Test set (n = 31) | |||||
|---|---|---|---|---|---|---|
| Low MI (n = 40) | High MI (n = 41) | p | Low MI (n = 11) | High MI (n = 20) | p | |
| Age (years) | 0.032 | 0.438 | ||||
| Mean ± SD | 52.9 ± 12.8 | 60.7 ± 18.8 | 53.7 ± 16.0 | 59.5 ± 21.0 | ||
| Sex | 0.224 | >0.999 | ||||
| Male | 19 (47.5%) | 25 (61.0%) | 5 (45.5%) | 10 (50.0%) | ||
| Female | 21 (52.5%) | 16 (39.0%) | 6 (54.5%) | 10 (50.0%) | ||
| Tumor site | 0.320 | >0.999 | ||||
| Gastric | 21 (52.5%) | 17 (41.5%) | 4 (36.4%) | 8 (40.0%) | ||
| Non-gastric | 19 (47.5%) | 24 (58.5%) | 7 (63.6%) | 12 (60.0%) | ||
| Diameter (cm) | <0.001 | 0.003 | ||||
| Mean ± SD | 6.1 ± 1.9 | 10.8 ± 3.6 | 4.3 ± 2.5 | 9.6 ± 6.3 | ||
Data are presented as mean ± SD or number (percentage). Independent samples t-test was applied in continuous variables. Chi-squared test or Fisher’s exact test was applied to categorical variables. Bold type indicates statistically significant difference.
Low MI, low mitotic index; High MR, high mitotic index.