TABLE 2.

Subsequent events and follow-up of group 1 (CALND after SLN biopsy) and group 2 (no CALND after SLN biopsy)

	Group 1 (n = 206) n (%)	Group 2 (n = 70) n (%)	P Value
Follow-up period			0.349
Range in months	6–147	15–123
Median in months	69	73
Mean in months	69.9	73.5
Breast cancer recurrence
In-breast recurrence, number of events (events/n, %)	7 (4)	3 (4)	0.718
Regional nodal recurrence, number of events (events/n, %)	4 (2)	0	0.575
Distant recurrence, number of events (events/n, %)	14 (7)	9 (13)	0.133
All cancer recurrences together	20 (10)	10 (14)	0.276
Deaths
Breast cancer-related deaths (deaths/n, %)	5 (2)	3 (4)	0.422
Breast cancer-related hospice or unknown living status (events/n, %)	0	2(3)	0.064
Non-breast cancer deaths (deaths/n, %)	6 (3)	3 (4)	0.697
Total deaths, all causes	10 (5)	6 (9)	0.248

Some patients had more than one subsequent event (breast/chest wall, nodal, or distant recurrence or death) and therefore count multiple times in this table