“Malignant” Perivascular Epithelioid Cell Neoplasm: Risk Stratification and Treatment Strategies

Table 3

Multivariate analysis of clinical and histologic factors related to PEComa-NOS recurrence.

	Variable	Risk ratio	95% CI	𝑃-value
(a) All nonconcordant variables	Age	1.91	0.15–21.5	0.61
	Skin primary	0.0009	0-NC	0.93
Number of events: 24	Size >5 cm	6.16	1.04–117.4	0.04
Number of censorings: 83	High mitotic rate (>1/50 HPF)	6.96	2.20–26.7	<0.01
Total number: 107	Necrosis	1.55	0.56–4.70	0.41
(b) Variables significant on multivariate analysis	Size > 5cm	4.30	1.23–27.2	0.02
Number of events: 25	High mitotic rate (>1/50 HPF)	7.57	2.96–23.2	<0.01
Number of censorings: 93
Total number: 118