Table 3.
Clinicopathological characteristics according to the number of seeds [n = 1031]a
| Single seed [n = 920 (89.2%)] |
Multiple seeds (two or three) [n = 111 (10.8%)] |
p value | |
|---|---|---|---|
| Age, years [mean (SD)] | 59.44 (9.33) | 57.16 (10.39) | 0.017 |
| DCIS size, cm [mean (SD)] | 1.70 (1.37) | 3.03 (2.14) | < 0.001 |
| Resection margins, cm [mean (SD)] | 0.36 (0.30) | 0.25 (0.24) | 0.002 |
| Resection_margins_cat | |||
| < 2 mm | 448 (48.7) | 73 (65.8) | 0.001 |
| ≥ 2 mm | 469 (51.0) | 37 (33.3) | |
| Unknown | 3 (0.3) | 1 (0.1) | |
| Radicality | |||
| Free | 731 (79.5) | 88 (79.3) | 0.574 |
| Focally not radical | 123 (13.4) | 12 (10.8) | |
| More than focally not radical | 63 (6.8) | 10 (9.0) | |
| Unknownb | 3 (0.3) | 1 (0.9) | |
| First re-excision | |||
| Yes | 110 (12.0) | 19 (17.1) | 0.161 |
| No | 810 (88.0) | 92 (82.9) | |
Data are expressed as n (%) unless otherwise specified
SD standard deviation, DCIS ductal carcinoma in situ
aOnly patients with a known number of seeds were included
bExcluded from the analysis
Bolded p-values indicate significance