TABLE 1.
General information on participating population‐based registries
| Excluded cases 1 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Source | Country | Diagnosis period | Registered cases | DCO/autopsy | Not pathologically diagnosed | Not pathologically eligible 2 | Precancerous/in situ | Unknown metastasis | Metastatic | Analyzed cases |
| SEER‐18 3 | The US | Jan. 2004‐Dec. 2015 | 79 091 | 855 (1) | 983 (1) | 10 020 (13) | 780 (1) | 5344 (7) | 23 280 (29) | 37 829 |
| NCR | Netherlands | Jan. 2005‐Dec. 2014 | 18346 | 48 (< 1) | 309 (2) | 78 (< 1) | 343 (2) | 711 (4) | 7112 (39) | 9745 |
| BCR | Belgium | Jan.2004‐Dec. 2013 | 14122 | NA | 80 (1) | 1670 (12) | 23 (< 1) | 3076 (22) | 2805 (20) | 6468 |
| SCR | Sweden | Jan. 2006‐Aug. 2016 | 7909 | NA | 169 (2) | 0 (0) | 0 (0) | 471 (6) | 2783 (35) | 4486 |
| CRN | Norway | Jan. 2003‐Dec. 2014 | 6194 | 53 (1) | 299 (5) | 438 (7) | 5 (< 1) | 362 (6) | 1779 (29) | 3258 |
| CRS | Slovenia | Jan. 2003‐Dec. 2013 | 5265 | NA | 241 (5) | 231 (4) | 9 (< 1) | 236 (4) | 1655 (31) | 2893 |
| ECR | Estonia | Jan. 2009‐Dec. 2014 | 2394 | 67 (3) | 139 (6) | 114 (5) | 0 (0) | 245 (10) | 801 (33) | 1028 |
1
Shown as n (percentage [%]).
2
Based on criteria shown in Supporting information Table S3. Preliminary case selection according to cancer histology had been performed by the national cancer registries of the Netherlands and Sweden.
3
Data of the year 2003 were not analyzed, as the TNM stage (version 6/7) information was unavailable.
SEER, Surveillance, Epidemiology, and End Results Program; NCR, Netherlands Cancer Registry; BCR, Belgian Cancer Registry; SCR, Swedish Cancer Registry; CRN, Cancer Registry of Norway; CRS, Cancer Registry of Slovenia; ECR, Estonian Cancer Registry; DCO, death certificate only; NA, not available.