Table 1.
Completeness and Positive Predictive Value (PPV) of Registrations in DaRenCaData Compared to Registrations in DCR
| DaRenCaData – DCR Patients in Both Registries | DaRenCaData Only | DCR Only | Total | Completeness | PPV | ||
|---|---|---|---|---|---|---|---|
| DaRenCaData N | DCR N | DaRenCa N | DCR N | % (95% CI) | % (95% CI) | ||
| 01/08/2010–31/07/2011* | 649 | 665 | 50 | 145 | 82 (79–84) | 93 (91–95) | |
| 01/08/2011–31/07/2012 | 694 | 695 | 26 | 129 | 84 (82–87) | 96 (95–98) | |
| 01/08/2012–31/07/2013 | 725 | 715 | 38 | 92 | 89 (87–91) | 95 (93–97) | |
| 01/08/2013–31/07/2014 | 849 | 856 | 21 | 93 | 90 (88–92) | 98 (97–99) | |
| 01/08/2014–31/07/2015 | 865 | 861 | 24 | 57 | 94 (92–95) | 97 (96–98) | |
| 01/08/2015–31/12/2015 | 368 | 358 | 17 | 48 | 88 (85–92) | 96 (94–98) | |
| Total | 4150 (85%) | 176 (4%) | 564 (12%) | 4890 (100%) | 88 (87–89) | 96 (95–97) | |
Notes: *The time periods correspond to the annual reports of DaRenCaData going from August to July; DCR, Danish Cancer Registry; DaRenCaData, Clinical database of the multidisciplinary renal cancer group; PPV Positive Predictive Value: calculated as patients in the intersection in relation to all patients in DaRenCaData; Completeness: Calculated as patients in the intersection in relation to all patients in DCR.