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Table 6 Ordinary least squares regression results of ICECAP-A and EQ-5D-3L on socio-demographic characteristics and clinic conditions

From: Assessing the reliability and validity of the ICECAP-A instrument in Chinese type 2 diabetes patients

Variables ICECAP-A EQ-5D-3L EQ-VAS  
  Coef. S.E. Coef. S.E. Coef. S.E.
Pannel A: Socio-demographic characteristics
Gender (reference = Male)
  Female 0.003 0.009 −0.005 0.007 1.225 0.886
  Age −0.001 0.001 −0.001** 0.000 −0.131** 0.051
Marital Status (reference = Married)
  Other marital status 0.003 0.016 −0.016 0.019 0.414 1.567
Monthly income per capita (reference = < ¥1000)
 ¥1001–¥2000 0.050** 0.024 −0.023 0.020 7.515** 3.122
 ¥2001–¥3000 0.025 0.027 0.006 0.020 8.746** 3.416
 ¥3001–¥4000 0.015 0.028 0.003 0.020 8.837** 3.602
 >¥4000 −0.013 0.031 −0.019 0.027 8.805** 3.732
Education (referent = Primary school or below)
 Middle School 0.032** 0.016 0.009 0.015 1.798 1.491
 High or profession school 0.035** 0.016 0.009 0.016 1.349 1.629
 College and above 0.052** 0.019 0.021 0.018 3.660** 1.692
Working status (reference = Working)
 Leisure −0.002 0.015 −0.02* 0.012 −0.273 1.288
 Other status −0.035** 0.012 0.002 0.010 −1.720 1.096
Health insurance (referent = No insurance)
 Government medical insurance −0.025 0.055 −0.028 0.049 −1.982 4.821
 Urban employee medical insurance −0.029 0.032 −0.031 0.035 2.576 2.056
 Urban resident medical insurance −0.091 0.050 −0.014 0.035 −0.567 2.570
 New cooperative medical insurance 0.024 0.039 −0.012 0.041 −1.985 3.506
Income source (referent = Salary)
 Agriculture production or business −0.069** 0.026 −0.012 0.019 −12.583** 3.597
 Other income source −0.113** 0.029 −0.002 0.023 −12.489** 3.717
 Unknown −0.113** 0.025 −0.027 0.018 −10.919** 3.445
Pannel B: Clinic conditions
Self-reported happiness(referent = Fairly unhappy)
  Fairly happy 0.404** 0.034 0.071** 0.036 21.296** 3.163
  Very happy 0.400** 0.033 0.076** 0.032 20.796** 3.100
Self-reported health status(referent = Poor health)
  Fair health 0.086** 0.044 0.007 0.049 8.977** 5.032
  Good health 0.093** 0.044 0.024 0.048 13.261** 4.963
Number of other chronic diseases (reference = No other chronic diseases)
 One 0.011 0.011 0.014 0.010 −0.875 0.916
 Two or above −0.013 0.013 −0.001 0.009 −2.366* 1.112
Number of complications (reference = No complication)
 One −0.006 0.012 0.004 0.008 −1.851* 1.797
 Two or above 0.017 0.019 −0.022 0.018 −2.375 1.920
FPG (referent = 6.1–7.0 mmol/L)
  < 6.1 mmol/L −0.002 0.016 −0.005 0.012 −4.403** 1.442
 6.1–7.0 mmol/L 0.003 0.013 0.005 0.007 −0.787 0.953
PG2H (referent = < 7.8 mmol/L)
 7.8 ~ 11.1 mmol/L −0.002 0.013 −0.008 0.012 −2.349 1.708
 ≥ 11.1 mmol/L −0.010 0.011 −0.003 0.007 0.162 0.918
HbA1c (referent = < 6.5%)
≥6.5% 0.018* 0.011 −0.006 0.011 1.001 1.117
R2 0.224   0.137   0.367  
N 426   426   423  
  1. Coef. coefficient, S.E. standard error
  2. *significant at the 10% level; **significant at the 5% level