Table 3: Covariates variables descriptions (sex).

Sex

N

Nn

%n

Nd

%d

Male

1228

1164

0.459

64

0.432

Female

1456

1372

0.541

84

0.568

χ2  test of independence: χ2  = 0.298, p-value = 0.585

N is the sample size of the respective group, while %n and %d are the proportion of the non-dementia and dementia group with given characteristics.