Table 2.
Age, size, and rate of growth of 105 clinical databases with full entry in DoCDat, August 2003
| Characteristics | No (%) of databases |
|---|---|
| Year established | |
| Before 1960 | 5 (5) |
| 1960-9 | 6 (6) |
| 1970-9 | 16 (15) |
| 1980-9 | 14 (13) |
| 1990-4 | 17 (16) |
| 1995-9 | 29 (28) |
| 2000 onward | 8 (8) |
| Size (No of patients or episodes): | |
| <2000 | 15 (14) |
| 2000-9999 | 27 (26) |
| 10 000-49 999 | 25 (24) |
| 50 000-1 million | 26 (25) |
| >1 million | 12 (11) |
| Growth rate (new patients or episodes/year)*: | |
| <100 | 5 (6) |
| 100-499 | 15 (18) |
| 500-1999 | 23 (27) |
| 2000-9999 | 16 (19) |
| 10 000-49 999 | 17 (20) |
| 50 000-499 999 | 6 (7) |
| >500 000 | 3 (4) |
*
Based on 85 databases with continuous recruitment.