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Table 3 Correlation1 and Regression2 Results

From: Quality of life at the end of life

 

Prospective

Retrospective

 

1

2

3

4

 

Correlation

Regression

Correlation

Regression

R 2

 

.17

 

.37

Age

-0.13

 

0.09

 

Age ≥ 60

-0.17

-3.81

0.16

0.75

Gender

0.05

 

0.07

 

White

-0.04

 

-0.00

 

College Graduate

-0.01

 

-0.18

 

Log (age)

-0.14

 

0.08

 

Age*sex

0.03

 

0.11

 

Log (age)*sex

0.05

 

0.08

 

Cancer

-0.03

 

0.03

 

Baseline health (high best)

0.17

 

0.253

 

QOL Baseline (high best)

0.383

1.70

0.583

0.43

PAIN Baseline (low best)

-0.01

 

-0.04

 

# of days lived

  

0.08

 

Days Lived*QOL

  

0.323

 

Days Lived*Pain

  

.14

 
  1. 1 Correlation with WQL.
  2. 2 Regression of WQL on the column variables, using backward elimination with a p to retain of 0.10.
  3. 3 Correlation coefficient is significantly different from zero (p < .05 2-tailed).