Table 2 Sample attrition at different steps of the study in non-demented patients.
Cases n = 205 | Controls n = 200 | |
|---|---|---|
Non-demented at admission | 127 (62%) | 180 (90%) |
Death during admission | 22 | 7 |
Death during the next three months after discharge | 8 | 10 |
Lost follow up | 38 | 47 |
Analysed* | 59 | 116 |