Observational Study
Copyright ©The Author(s) 2024.
World J Diabetes. Apr 15, 2024; 15(4): 675-685
Published online Apr 15, 2024. doi: 10.4239/wjd.v15.i4.675
Table 1 Characteristics of the 400 participants
Sample characteristic
Mean (SD) or M (Q1, Q3) or n (%)
Age, yr57.5 ± 10.9
Duration of diabetes, yr6.5 (2.5, 12.0)
Sex
    Male266 (66.5)
    Female134 (33.5)
Type of medical insurance
    UEBMI195 (48.8)
    URBMI76 (19.0)
    NRCMI129 (32.2)
Ethnicity
    Han178 (44.5)
    Hui128 (32.0)
    Other94 (23.5)
Marital status
    Married367 (91.8)
    Unmarried33 (8.2)
Level of education
    No formal school91 (22.8)
    Primary school64 (16.0)
    Junior high school72 (18.0)
    Senior high school75 (18.7)
    College and above98 (24.5)
Annual household income, yuan per year (1 yuan approximately equal to 0.155 USD)
    < 35000122 (30.5)
    35000-75000113 (28.2)
    > 75000122 (30.5)
Unknown43 (10.8)
Table 2 The multiple linear regression analysis results regarding delay discounting, glycated hemoglobin, and different intensity levels of physical activity (Met-hour/week)
Sample characteristic
HbA1c β (95%CI)
Walking activity β (95%CI)
Moderate physical activity β (95%CI)
Vigorous physical activity β (95%CI)
Delay discounting0.024 (-0.053, 0.101)0.072 (-1.192, 1.336)-2.386 (-4.370, -0.401)a0.065 (-1.179, 1.308)
Age, yr-0.024 (-0.047, -0.002)a-0.086 (-0.452, 0.280)-0.905 (-1.480, -0.330)b-0.497 (-0.858, -0.137)b
Duration of diabetes, yr-0.004 (-0.035, 0.027)-0.038 (-0.550, 0.474)0.489 (-0.315, 1.293)-0.135 (-0.639, 0.368)
Sex
    MaleReferenceReferenceReferenceReference
    Female-0.133 (-0.609, 0.343)0.294 (-7.515, 8.104)3.925 (-8.341, 16.190)-6.832 (-14.518, 0.854)
Medical insurance type
    UEBMIReferenceReferenceReferenceReference
    URBMI0.269 (-0.474, 1.012)-7.565 (-19.758, 4.627)15.345 (-3.804, 34.494)8.971 (-3.029, 20.971)
    NRCMI0.863 (0.140, 1.586)a2.476 (-9.388, 14.340)20.642 (2.009, 39.275)a11.453 (-0.223, 23.130)
Ethnicity
    HanReferenceReferenceReferenceReference
    Hui-0.247 (-0.752, 0.259)3.682 (-4.607, 11.972)0.009 (-13.010, 13.028)-0.231 (-8.389, 7.927)
    Other-0.452 (-1.012, 0.109)-4.745 (-13.941, 4.451)-1.869 (-16.311, 12.574)7.126 (-1.924, 16.177)
Marital status
    MarriedReferenceReferenceReferenceReference
    Unmarried0.398 (-0.387, 1.182)-4.171 (-17.038, 8.696)15.021 (-5.188, 35.229)-3.814 (-16.477, 8.850)
Level of education-0.084 (-0.300, 0.133)3.754 (0.209, 7.300)a4.67 (-0.899, 10.239)2.482 (-1.008, 5.971)
Annual household income, yuan per year
    < 35000ReferenceReferenceReferenceReference
    35000-75000-0.26 (-0.837, 0.317)-0.065 (-9.530, 9.400)15.149 (0.283, 30.014)a0.647 (-8.668, 9.962)
    > 75000-0.259 (-0.899, 0.380)-0.908 (-11.394, 9.579)-7.146 (-23.616, 9.324)-6.052 (-16.373, 4.269)
    Unknown0.226 (-0.512, 0.965)-2.252 (-14.364, 9.860)0.591 (-18.432, 19.613)-8.053 (-19.973, 3.867)
Constant10.685 (8.288, 13.081)34.193 (-5.120, 73.507)84.431 (22.688, 146.175)38.294 (-0.397, 76.985)
Table 3 The multiple linear regression analysis results regarding delay aversion, HbA1C, and different intensity levels of physical activity (Met-hour/week).
Sample characteristic
HbA1c β (95%CI)
Walking activity β (95%CI)
Moderate physical activity β (95%CI)
Vigorous physical activity β (95%CI)
Delay aversion-0.002 (-0.083, 0.078)-0.724 (-2.037, 0.590)-3.527 (-5.578, -1.476)b-0.334 (-1.629, 0.960)
Age, yr-0.025 (-0.047, -0.003)a-0.098 (-0.462, 0.266)-0.885 (-1.454, -0.317)b-0.504 (-0.863, -0.145)b
Duration of diabetes, yr-0.003 (-0.035, 0.028)-0.037 (-0.548, 0.473)0.451 (-0.347, 1.248)-0.135 (-0.638, 0.369)
Sex
    MaleReferenceReferenceReferenceReference
    Female-0.122 (-0.598, 0.354)0.582 (-7.213, 8.377)4.213 (-7.958, 16.383)-6.686 (-14.367, 0.994)
Medical insurance type
    UEBMIReferenceReferenceReferenceReference
    URBMI0.264 (-0.479, 1.008)-7.588 (-19.760, 4.584)15.757 (-3.247, 34.762)8.954 (-3.039, 20.948)
    NRCMI0.849 (0.126, 1.573)a2.121 (-9.720, 13.962)20.374 (1.886, 38.861)a11.273 (-0.395, 22.940)
Ethnicity
    HanReferenceReferenceReferenceReference
    Hui-0.259 (-0.763, 0.245)3.528 (-4.728, 11.784)0.622 (-12.268, 13.512)-0.318 (-8.453, 7.817)
    Other-0.458 (-1.019, 0.103)-4.872 (-14.050, 4.307)-1.8 (-16.131, 12.531)7.06 (-1.985, 16.104)
Marital status
    MarriedReferenceReferenceReferenceReference
    Unmarried0.389 (-0.396, 1.174)-4.433 (-17.281, 8.416)14.621 (-5.439, 34.682)-3.944 (-16.605, 8.716)
Level of education-0.088 (-0.305, 0.128)3.639 (0.102, 7.176)a4.625 (-0.898, 10.148)2.422 (-1.063, 5.908)
Annual household income, yuan per year
    < 35000ReferenceReferenceReferenceReference
    35000-75000-0.251 (-0.827, 0.326)0.036 (-9.403, 9.475)14.569 (-0.168, 29.306)0.706 (-8.595, 10.006)
    > 75000-0.237 (-0.875, 0.402)-0.291 (-10.751, 10.169)-6.559 (-22.890, 9.772)-5.74 (-16.046, 4.567)
    Unknown0.24 (-0.500, 0.979)-1.77 (-13.875, 10.334)1.584 (-17.315, 20.483)-7.815 (-19.743, 4.112)
Constant11.114 (8.726, 13.503)46.666 (7.557, 85.776)100.185 (39.122, 161.247)44.574 (6.038, 83.110)