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Table 3 Proxy characteristics as predictors of patient-by-proxy EQ-5D utility values in a linear mixed model

From: Quality of life in dementia: a study on proxy bias

 

β-Coefficient

p-value

95% confidence interval

Intercept

0.07

0.734

−0.04 - 0.53

Proxy sex

−0.01

0.760

−0.10 - 0.07

Proxy age

0.01

0.000

0.00 - 0.01

Physical health

0.04

0.154

−0.02 - 0.10

Energy

0.04

0.159

0.02 - 0.10

Mood

−0.05

0.128

−0.11 - 0.01

Living situation

0.02

0.507

−0.04 - 0.07

Memory

−0.04

0.304

−0.11 - 0.03

Family

0.01

0.834

−0.05 - 0.06

Marriage

0.01

0.632

−0.04 - 0.07

Friends

0.00

0.926

−0.06 - 0.07

Self as a whole

0.01

0.733

−0.06 - 0.08

Ability to do chores around the house

−0.02

0.526

−0.07 - 0.04

Ability to do things for fun

0.05

0.041

0.00 - 0.10

Money

−0.03

0.417

−0.09 - 0.04

Life as a whole

0.03

0.417

−0.04 - 0.01

  1. R2 = 0.095 (R2 compared to an intercept only model).