Comparison of contact slips issued and contact attendances
| October–November 2000 | February–March 2001 | Significance | |
|---|---|---|---|
| Total number of index patients | 210 | 214 | |
| Number of patients meeting inclusion criteria | 136 | 133 | |
| Number of patients not issued contact slip(s) | 33 (24%) | 4 (3%) | p<0.0005 |
| Number of patients issued contact slip(s) | 103 (76%) | 129 (97%) | (χ2 test) |
| Number of contact slips issued | 144 | 190 | |
| Mean number of contact slips issued per patient | 1.4 (range 0–4) | 1.4 (range 0–4) | |
| Number of contacts attending for treatment | 48 | 160 | p<0.0005 |
| Contacts attending per contact slip issued | 0.3 | 0.8 | (χ2 test) |
| Contacts attending per index patient | 0.5 (range 0–3) | 1.2 (range 0–4) |