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Table 4 GLM poisson regression to determine the effective factors on the health related quality of life disutility scores and EQ-VAS scores

From: Health-related quality of life measured using the EQ-5D–5 L: population norms for the capital of Iran

Independent variable

Dependent variable: disutility scores

Dependent variable: EQ-VAS scores

Model 1

Model 2

Coefficient

p-value

95% CI

Coefficient

p-value

95% CI

Gender

 Male

Ref

     

 Female

0.215

0.164

− 0.088,0.519

−0.014

0.054

−0.028,0.000

Age category

  < 30

Ref

     

 30–39

0.226

0.178

−0.103,0.555

− 0.050

0.000

−0.064,-0.035

 40–49

0.416

0.016

0.076,0.756

−0.106

0.000

−0.122,-0.090

 50–59

0.494

0.006

0.143,0.844

−0.139

0.000

−0.156,-0.122

 60–69

0.547

0.005

0.161,0.932

−0.144

0.000

−0.164,-0.124

  > 69

0.785

0.001

0.334,1.236

−0.208

0.000

−0.235,-0.182

Marital status

 Never married

Ref

     

 Married

0.053

0.749

−0.275,0.383

0.014

0.046

0.000,0.029

 Divorced or widowed

0.223

0.338

−0.233,0.679

−0.107

0.000

−0.134,-0.080

Employment status

 Employed

Ref

     

 Student

−0.032

0.897

−0.526,0.461

0.009

0.355

−0.010,0.028

 Home maker

0.149

0.381

−0.185,0.484

− 0.039

0.000

−0.055,-0.022

 Retired

0.093

0.553

− 0.214,0.400

0.007

0.397

−0.009,0.025

 Unemployed

0.152

0.563

−0.364,0.670

0.007

0.545

−0.017,0.032

 Others

0.569

0.164

−0.232,1.372

−0.213

0.000

−0.268,-0.0158

Education

 Illiterate

Ref

     

 Elementary

−0.010

0.957

−0.377,0.357

0.017

0.192

−0.008,0.043

 Guidance

−0.073

0.692

− 0.436,0.290

0.042

0.001

0.017,0.067

 High school and pre-university

−0.159

0.386

−0.519,0.200

0.078

0.000

0.053,0.102

 University

−0.208

0.293

−0.598,0.180

0.094

0.000

0.068,0.120

 Constant

−2.115

0.000

−2.607,-1.622

4.307

0.000

4.279,4.335

 AIC

0.899

  

11.590

  

 BIC

−23,823.73

  

− 7364.766