Table 1 The three cohorts included in the analysis
| Â | No. death (%) | No. alive (%) | No. included (%) | No. excluded (%) | Reasons for exclusion |
|---|---|---|---|---|---|
Group 1 | 20 (38.5) | 32 (61.5) | 23 (71.9%) | 9 (28.1) | -Loss to  follow up |
-Dementia | |||||
-Refusal | |||||
Group 2 | 21 (44.7) | 26 (55.3) | 16 (61.5) | 10 (38.5) | -Loss to  follow up |
-Dementia | |||||
-Refusal | |||||
Group 3 | 30 (50) | 30 (50) | 16 (53.3) | 14 (46.7) | -Loss to  follow up |
-Dementia | |||||
-No  English | |||||
-Refusal |