Table 2. Origin of published articles including registry type and geographical distribution.

Registry type	Publications
Total, n	144
Large generalised cancer or admission based, n/n [%]	117/144 [81]
SEER	48/117 [41]
NCDB	28/117 [24]
Other North American	10/117 [8]
Scandinavian	10/117 [8]
Other European	6/117 [5]
Asia-Pacific	15/117 [13]
Clinical quality, n [%]	1 [1]
Urology specific, n [%]	11 [8]
UTUC specific, n [%]	15 [10]

SEER, Surveillance, Epidemiology and End Results; NCDB, National Cancer Database; UTUC, upper tract urothelial cancer.