| Patient group (n = 378) | Control group (n = 132) |
---|---|---|
 | N (%) | N (%) |
Respondents at 2-y follow-up | 285 (75.4) | 116 (87.9) |
Non-respondents at 2-y follow-up | 93 (24.6) | 16 (12.1) |
Reasons of attrition | Â | Â |
Deceased | 26 (28.0) | 2 (12.5) |
Refusal | Â | Â |
 No interest/no time | 14 (15.0) | 8 (50.0) |
 Bad experience with previous interview | 1 (1.1) | 0 (0) |
Unable | Â | Â |
 Due to physical reasons | 12 (12.9) | 2 (12.5) |
 Due to mental reasons | 35 (37.6) | 4 (25.0) |
Noncontact | Â | Â |
 No contact | 4 (4.3) | 0 (0) |
 Moved abroad | 1 (1.1) | 0 (0) |