Table 2.

Correlation coefficient matrix^‡

Variable at Baseline	Imputed Data Set QALYs (EQ-5D)
Age	-0.298**
Group	0.0913
Education	0.3106**
Average waist girth	-0.232*
Function Comorbidity Index	-0.488**
Trail B - Trail A	-0.1084*
Digits Forward - Digits Backward	-0.1710**
MMSE	0.051
Timed Up and Go	-0.598**
Stroop	-0.113

^‡ Results from both imputed and complete case analysis were identical to 0.000 decimal.

* p < 0.05

** p < 0.01