Table 2.
Number and extent of disease of lymph nodes by treatment arm for the intent-to-treat and the treatment received samples.
| Intent-to-Treat Sample | Treatment Received Sample | |||||
|---|---|---|---|---|---|---|
| ALND (N = 420) |
SLND only (N = 436) |
P | ALND (N = 388) |
SLND only (N = 425) |
P | |
| Total number of nodes removed | <0.001 | <0.001 | ||||
| median | 17 | 2 | 17 | 2 | ||
| IQR* | 13,22 | 1,4 | 13,22 | 1,3 | ||
|
| ||||||
| Number of positive nodes, no.(%) | ||||||
| 0 | 4(1.2) | 29(7.0) | <0.001 | 3(0.88) | 28(6.9) | <0.001 |
| 1 | 199(58.0) | 295(71.1) | 198(58.1) | 290(71.8) | ||
| 2 | 68(19.8) | 76(18.3) | 68(19.9) | 74(18.3) | ||
| ≥3 | 72(21.0) | 15(3.6) | 72(21.1) | 12(3.0) | ||
| Unknown | 77 | 21 | 47 | 21 | ||
|
| ||||||
| Size of SN Mets, no. (%) | ||||||
| Micro | 137(37.5) | 164(44.8) | 0.05 | 120(35.4) | 160(44.6) | 0.02 |
| Macro | 228(62.5) | 202(55.2) | 219(64.6) | 199(55.4) | ||
| Unknown | 55 | 70 | 49 | 66 | ||
*
IQR is the Interquartile range, which is the 25th percentile, 75th percentile