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Table 1 Sample characteristics for the ICECAP-A and EQ-5D-3L scores and EQ-VAS by socio-demographic and clinic conditions groups of the sample

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

   ICECAP-A tariff EQ-5D-3L utility EQ-VAS
  N Mean Sd p-value Mean Sd p-value Mean Sd p-value
Gender     0.725    0.154    0.036
Male 194 0.85 0.09   0.95 0.06   82.98 10.59  
Female 298 0.85 0.10   0.93 0.08   80.74 10.89  
Age     0.005    0.595    < 0.001
< 35 2 0.94 0.05   0.96 0.00   92.50 3.54  
35–44 14 0.89 0.07   0.94 0.07   85.00 9.58  
45–54 64 0.87 0.11   0.95 0.05   85.17 7.92  
55–64 140 0.85 0.11   0.94 0.07   81.64 13.66  
≥65 272 0.84 0.08   0.93 0.08   80.51 9.59  
Marital status     0.017    0.007    < 0.001
Married 448 0.86 0.09   0.94 0.06   82.19 10.55  
Unmarried 44 0.81 0.12   0.90 0.11   75.80 11.88  
Monthly income per capita     0.197    0.694    < 0.001
< ¥1000 54 0.87 0.12   0.93 0.07   73.52 15.07  
¥1001–¥2000 57 0.86 0.09   0.92 0.12   78.75 11.87  
¥2001–¥3000 225 0.85 0.08   0.94 0.06   82.59 9.36  
¥3001–¥4000 120 0.85 0.10   0.95 0.05   83.78 8.68  
≥¥4000 36 0.83 0.11   0.93 0.11   85.03 10.29  
Education     0.667    0.223    < 0.001
Primary school or below 122 0.85 0.11   0.92 0.09   75.73 13.03  
Middle school 132 0.85 0.09   0.93 0.08   82.34 9.72  
High or profession school 170 0.85 0.09   0.94 0.06   83.36 9.59  
College or above 68 0.86 0.09   0.96 0.02   86.47 6.11  
Work status     0.021    0.756    < 0.001
Other work status 99 0.86 0.08   0.94 0.07   84.96 6.37  
Working 63 0.89 0.07   0.94 0.06   86.25 7.83  
Leisure 330 0.84 0.10   0.94 0.07   79.74 11.82  
Health insurance     0.004    0.645    < 0.001
Government medical insurance 3 0.87 0.01   0.96 0.00   73.33 15.28  
Urban resident medical insurance 17 0.79 0.16   0.95 0.05   81.35 6.10  
Urban employee medical insurance 359 0.85 0.08   0.94 0.07   83.83 8.93  
New cooperative medical insurance 111 0.88 0.11   0.93 0.08   74.74 13.67  
No insurance 2 0.89 0.07   0.96 0.00   85.00 0.00  
Income source     < 0.001    0.585    0.261
Salary 311 0.85 0.09   0.94 0.06   82.49 9.35  
Agriculture production or business 21 0.88 0.08   0.95 0.04   77.05 11.36  
Other source 127 0.83 0.10   0.93 0.10   80.40 13.31  
Unkown 33 0.92 0.10   0.93 0.06   80.91 12.08  
Self-reported happiness     0.012    0.022    0.001
Very happy 423 0.85 0.09   0.94 0.06   82.00 11.04  
Fairly happy 66 0.85 0.09   0.92 0.11   80.17 8.25  
fairly unhappy 3 0.55 0.08   0.81 0.05   60.00 0.00  
Self-reported health status     0.013    0.002    < 0.001
Good health 314 0.86 0.09   0.95 0.06   84.37 9.50  
Fair health 165 0.85 0.09   0.92 0.08   77.86 10.12  
Poor health 12 0.74 0.15   0.87 0.14   62.42 16.98  
Number of Other Chronic diseases   0.248    0.051    < 0.001
None 85 0.86 0.07   0.94 0.07   85.42 6.18  
1 222 0.86 0.09   0.95 0.06   83.19 9.95  
2 or above 185 0.84 0.11   0.93 0.08   78.02 12.36  
Number of Complications     0.631    < 0.001    < 0.001
None 344 0.85 0.09   0.95 0.06   83.42 8.66  
1 104 0.84 0.10   0.93 0.08   77.88 15.00  
2 or above 41 0.85 0.08   0.89 0.1   76.20 10.64  
Fasting Blood Glucose     0.184    0.401    0.001
< 6.1 mmol/L 256 0.85 0.08   0.94 0.06   83.78 7.85  
6.1 ~ 7.0 mmol/L 87 0.85 0.11   0.94 0.06   83.81 7.74  
≥7.0 mmol/L 133 0.86 0.11   0.93 0.09   77.83 14.38  
Two hours Postprandial Blood Glucose     0.477    0.550    0.002
< 7.8 mmol/L 88 0.84 0.10   0.94 0.05   83.76 8.75  
7.8 ~ 11.1 mmol/L 270 0.85 0.09   0.94 0.07   83.24 8.08  
≥11.1 mmol/L 88 0.86 0.10   0.93 0.09   77.18 15.26  
HbA1c     0.020    0.248    0.010
< 6.5% 328 0.84 0.09   0.94 0.06   83.12 8.74  
≥6.5% 141 0.87 0.09   0.93 0.09   79.21 13.54  
Overall sample   0.85 0.10   0.94 0.07   81.62 10.82  
  1. ICECAP-A ICEpop CAPability measure for adults, EQ-5D-3L EuroQoL Three-Dimension, Sd standard deviation
  2. There are 1, 3, 16, 42, 23 missing data which in the categories of self-reported happiness, number of complications, fasting blood glucose, two hours postprandial blood glucose, HbA1c, respectively
  3. Monthly income per capita is classified into three levels: low-income (less than CNY 2000), middle-income (between CNY 2001 and CNY 4000), and high-income (more than CNY 4000)