Table 3.

Renal tumour biopsy utilization: Overall and per fellowship training

	Type of fellowship training
Questions	Overall (n=188)	Urologic oncology (n=48)	Endourology/MIS (n=43)	Other fellowship/none (n=97)	p
In what proportion of patients with SRM do you request a RTB to inform treatment?					0.01*
Never	13 (6.9)	0 (0)	3 (7.0)	10 (10.3)
≤ 25% of cases	87 (46.3)	14 (29.2)	23 (53.5)	50 (51.6)
26–50% of cases	40 (21.3)	15 (31.3)	7 (16.3)	18 (18.6)
51–75% of cases	26 (13.8)	11 (22.9)	3 (7.0)	12 (12.4)
76-–100% of cases	22 (11.7)	8 (16.7)	7 (16.3)	7 (7.2)
What type of biopsy is typically performed at your centre?					0.7†
Fine needle aspiration (FNA)	7 (3.7)	0 (0)	3 (7.0)	4 (4.1)
Needle core biopsy	129 (68.6)	42 (87.5)	29 (67.4)	58 (59.8)
Both FNA and core biopsy punctures	35 (18.6)	6 (12.5)	6 (14.0)	23 (23.7)
Biopsies are not performed or I am unsure	17 (9.0)	0 (0)	5 (11.6)	12 (12.4)
Who typically performs these RTBs?					0.07
Radiologist	180 (95.7)	46 (95.8)	43 (100)	91 (93.8)
Urologist	1 (0.5)	1 (2.1)	0 (0)	0 (0)
Urologist/radiologist	1 (0.5)	1 (2.1)	0 (0)	0 (0)
Biopsies are not performed at our centre	6 (3.2)	0 (0)	0 (0)	6 (6.2)
Who typically performs these RTBs?					0.07
Radiologist	180 (95.7)	46 (95.8)	43 (100)	91 (93.8)
Urologist	1 (0.5)	1 (2.1)	0 (0)	0 (0)
Urologist/radiologist	1 (0.5)	1 (2.1)	0 (0)	0 (0)
Biopsies are not performed at our centre	6 (3.2)	0 (0)	0 (0)	6 (6.2)
Following RTB, patients are typically:					0.1‡
Hospitalized overnight	8 (4.3)	0 (0)	2 (4.7)	6 (6.2)
Discharged on the same day (outpatient)	173 (92.0)	48 (100)	41 (95.4)	84 (86.6)
Other/missing	7 (3.7)	0 (1.4)	0 (2.3)	7 (7.2)

^*Bonferroni adjusted p value urologic oncology vs. endourology=0.01; Bonferroni adjusted p value urologic oncology vs. other fellowship/none=0.003.

^†If category “biopsies are not performed or I am unsure” considered in the analysis, p =0.02.

^‡If “Other/missing” considered in the analysis, p=0.04.

RTB: renal tumour biopsies; SRMs: small renal masses.