Table 3

Multivariable linear regression analyses of factors impacting EQ-5D scores in SHIELD baseline respondents*

Variables
EQ-5D VAS score n = 14,383
EQ-5D index score n = 14,378





Beta coefficient
SE
Beta coefficient
SE

Diabetes risk group






Low risk
9.02†
0.45
0.049†
0.004

High risk
3.18†
0.39
0.009†
0.004

Type 2 diabetes
(reference)

(reference)

Age (yrs)






18–24
5.69†
0.94
0.052†
0.008

25–34
0.39
0.63
0.011
0.006

35–44
(reference)

(reference)


45–54
- 0.65
0.51
- 0.025†
0.005

55–64
- 0.34
0.54
- 0.033†
0.005

65–74
2.82†
0.58
- 0.011†
0.005

≥75
- 0.45
0.64
- 0.031†
0.006
Gender






Female
- 1.16†
0.32
- 0.029†
0.003

Male
(reference)

(reference)

Race






White
(reference)

(reference)


Black
1.20†
0.59
0.014†
0.005

Other
- 1.66
0.96
- 0.015
0.009
Household Income ($) per year






<22,500
- 13.03†
0.49
- 0.121†
0.004

22,500–39,999
- 6.68†
0.49
- 0.066†
0.004

40,000–59,999
- 3.62†
0.50
- 0.037†
0.004

60,000–89,999
- 1.71†
0.49
- 0.020†
0.004

≥90,000
(reference)

(reference)

Geographic region






Northeast
2.70†
0.80
0.029†
0.007

Middle Atlantic
2.34†
0.58
0.026†
0.005

East North Central
2.28†
0.56
0.021†
0.005

West North Central
2.58†
0.70
0.023†
0.006

South Atlantic
1.87†
0.54
0.015†
0.005

East South Central
0.42
0.73
- 0.002
0.007

West South Central
1.75†
0.63
0.014†
0.006

Mountain
1.03
0.74
0.011
0.007

Pacific
(reference)

(reference)

Household size (no. of members)






1
(reference)

(reference)


2
- 0.77
0.43
- 0.009†
0.004

3
- 1.68†
0.53
- 0.018†
0.005

4
- 1.05
0.59
- 0.010†
0.005

≥5
- 2.52†
0.64
- 0.022†
0.006
Body mass index (kg/m2) group






Underweight
- 3.12†
1.43
- 0.017
0.013

Normal weight
(reference)

(reference)


Overweight
- 1.33†
0.46
- 0.007
0.004

Obese
- 6.57†
0.47
- 0.047†
0.004

*Scores indicate change from reference group. †p < 0.05 versus reference group

EQ-5D = EuroQoL-5 Dimensions; VAS = visual analog scale; SE = standard error

Grandy and Fox Health and Quality of Life Outcomes 2008 6:18   doi:10.1186/1477-7525-6-18