Table 1 Cohort comparisons with no significant differences in any prognostic factors
Cohort 1 | Cohort 2 | p value | |
|---|---|---|---|
Selective lymphadenectomy | Routine lymphadenectomy | ||
n = 27 | n = 54 | ||
Age median (min/max) | 57 (42–88) | 61 (38–82) | 0.63a |
ASA score (1/2/3/4) % | 5/68/27/0 | 18/68/14/0 | 0.42a |
Fong’s score (0–2)/(3–5) % | 96.97/3.03 | 83.33/16.67 | 0.08b |
MTS size (mm) median (min/max) | 21 (10–40) | 20 (8–130) | 0.12a |
MTS number median (min/max) | 1 (1–8) | 2 (1–7) | 0.25a |
CEA level μg/l median (min/max) | 5.7 (0.3–850) | 6.62 (0.4–850) | 0.97a |
pN+ primary % | 41.67 | 29.09 | 0.29a |
disease free < 12 month % | 70.37 | 74.07 | 0.14a |