Table 1. Studies that met criteria for inclusion in the descriptive analysis.

Reference no.	Study	Year	n	Primary end point	Outcome
18	Prueter et al	2019	74	Tumor recurrence	Correlated
12	Graffeo et al	2018	46	Postoperative tumor regrowth after subtotal resection	Not correlated
17	Panigrahi et al	2018	144	Tumor recurrence	Correlated
2	Iannella et al	2017	17	Postoperative tumor regrowth	Correlated
14	Jabbour et al	2016	180	Younger age	Correlated
9	Cafer et al	2008	34	Tumor size at resection	Not correlated
19	Steinhart et al	2003	50	Preoperative tumor growth rate	Correlated
13	Hwang et al	2002	30	Postoperative tumor regrowth after subtotal resection, including selective adjunct radiosurgery	Correlated
11	Gomez-Brouchet et al	2001	30	Tumor size at resection	Not correlated
16	Niemczyk et al	2000	43	Preoperative tumor growth rate	Correlated
20	Yokoyama et al	1996	18	Postoperative tumor regrowth	Correlated
10	Charabi et al	1993	21	Preoperative symptom duration	Correlated
15	Lesser et al	1991	8	Preoperative tumor growth rate	Correlated