TABLE 2.

Qualitative review results of RCC regression rates across studies reporting data for observational cohorts of conservatively managed patients with RCCs

Authors & Year	No. of Patients	Regression	Rate
Igarashi et al., 199928	10	4	40%
Sanno et al., 200331	94	15	16%
Amhaz et al., 201010	29	9	31%
Culver et al., 20156	75	11	14.7%
Shepard et al., 201833	17	6	35%
Sala et al., 201811	62	2	3.2%
Barkhoudarian et al., 20194	30	3	10%
Petersson et al., 202220	73	35	48%
Kinoshita et al, 202213	229	73	31.9%
Total	619	158	25.5%