Table 6.

Comparison of clinicopathologic features of NTRK-rearranged uterine sarcomas with NTRK1 and NTRK3 fusions.

	NTRK1 (n=31)	NTRK3 (n=10)	Univariate p
Mean age (years) (SD)	37.0 (11.6)	37.6 (14.8)	0.89
Stage			0.081
IA	13 (52%)	1 (11%)
IB	10 (40%)	7 (78%)
IIB	2 (8%)	1 (11%)
Mean size (cm) (SD)	5.6 (3.4)	10.5 (6.1)	0.004
Mean mitotic activity per 10 HPFs (SD)	7.3 (8.2)	13.3 (15.8)	0.13
Lymphovascular invasion			1.0
Present	3 (12%)	1 (14%)
Absent	23 (88%)	6 (86%)
Necrosis			1.0
Present	10 (34%)	4 (40%)
Absent	19 (66%)	6 (60%)
Recurrence			0.044
Yes	6 (25%)	6 (67%)
No	18 (75%)	3 (33%)
Death from disease			0.30
Yes	2 (8%)	2 (78%)
No	22 (92%)	7 (22%)