Table 1.
Numbers of participating sites and submissions received over years 1-5 of the ClosER study
| Year | Number of participating sites | Complete demographic data, n/N (%) | Antimicrobial treatment data, n/N (%) | Submissions received | C. difficile-positive isolates | Toxin-positive isolates, n/N (%) | |
|---|---|---|---|---|---|---|---|
| Datasets | Complete datasets | ||||||
| 1 | 39 | 7/39 (17.9) | 14/39 (35.9) | 3/39 (7.7) | 978 | 944 | 897/944 (95.0) |
| 2 | 40 | 6/40 (15.0) | 16/40 (40.0) | 7/40 (17.5) | 1003 | 948 | 910/948 (96.0) |
| 3 | 33 | 7/33 (21.2) | 19/33 (57.6) | 9/33 (27.3) | 846 | 808 | 770/808 (95.3) |
| 4 | 23 | 2/23 (8.7) | 10/23 (43.5) | 1/23 (4.3) | 575 | 560 | 529/560 (94.5) |
| 5 | 7 | 1/7 (14.3) | 3/7 (42.9) | 0/7 (0) | 254 | 239 | 232/239 (97.1) |
| Total | – | – | – | – | 3656 | 3499 | 3338/3499 (95.4) |
Fifty-one sites in total were initially contacted. Submissions include both isolates and faecal samples