Table 4: Cox's proportional hazard model for AVLT-LTPR and DRS-2 memory.

 

B coeficient

SE

Wald

df

p

Odds Ratio*

95% Confidencie Intervale

Model equation

Model

 

 

 

 

 

 

 

 

AVLT - LTPR

-0.8.44

0.257

10.808

1

0.001

0.430

0.260-0.711

χ2(1) =5.639 p=0.018

DRS-2 memory

-0.862

0.285

9.137

1

0.003

0.422

0.242-0.739

χ2(1) =9.783 p=0.002

T : time between preliminary and definitive diagnosis; * - exponentiation of the B coefficient, which is an odds ratio in the settings of this type of model
AVLT: Auditory Verbal Learning Test; LTPR: Long-Term Percent Retention; DRS: Dementia Rating Scale.