Table 1.

Baseline characteristics of the sample analysed.

Variable	N (%)
Non manual profession	755 (38%)
Left school aged <= 14 years old	1582 (70%)
Female	1266 (63%)
Walks unaided around town or block	1582 (73%)
Married	773 (33%)
Mean ± st. dev. age at baseline	81 ± 5 yrs.
Mean ± st. dev. MMSE (median)
Baseline	24.5 ± 5.2 (26)
T2	23.0 ± 7.2 (25)
T7	24.1 ± 5.3 (25)
T9	26.3 ± 4.5 (25)