Table 6.

Statistical Analysis of Recurrent Smooth Muscle Tumors Among Patients with Clinical Follow Up.

Variable	Tumors	Any Recurrence	2 Year Recurrence-free Survival % (95% CI)	p-value
Site				0.4883
Vagina	49	9	81.9% (69.6%, 94.2%)
Vulva	14	3	92.9% (79.4%, 100%)
Tumor Size ≥ 5 cm				0002
No	45	3	94.2% (86%, 100%)
Yes	18	9	60.3% (34.7%, 86%)
Degree of Atypia				<0001
Mild to Moderate	46	1	96.4% (89.6%, 100%)
Moderate to Severe	17	11	53.4% (27.1%, 79.8%)
Mitotic Index ≥ 10/10 HPFs				<0001
No	51	3	97.4% (92.5%, 100%)
Yes	12	9	26.7% (0%, 57.2%)
Atypical Mitotic Figures				<0001
Mitotic Index of Zero	36	0	100%*
No	13	1	100%*
Yes	14	11	36.3% (8.8%, 63.8%)
Tumor Cell Necrosis				<0001
No	52	2	97.5% (92.7%, 100%)
Yes	11	10	31.2% (2.2%, 60.1%)
Ischemic Necrosis				<0001
No	49	3	94.5% (86.7%, 100%)
Yes	14	9	52.6% (24.6%, 80.6%)
Pattern of Infiltration				0053
Circumscribed	29	2	85.7% (67.4%, 100%)
Infiltrative	16	8	66.1% (41.7%, 90.5%)
Unknown	18	2	94.4% (83.9%, 100%)
Pattern of Infiltration (Unknown Excluded)				0042
Circumscribed	29	2	85.7% (67.4%, 100%)
Infiltrative	16	8	66.1% (41.7%, 90.5%)

^*Confidence interval non-estimable due to sparse data

HPFs (high power fields)