Comparison of Chromium and Iron Distribution in Serum and Urine among Healthy People and Prediabetes and Diabetes Patients
Table 2
Correlation between Cr, Fe, and other indicators in serum and urine within each group.
CON (n=50)
P
IFG (n=12)
P
IGT (n=15)
P
T1D (n=25)
P
T2D CON (n=29)
P
DN (n=24)
P
DR (n=34)
P
DPN (n=50)
P
Glu (mmol/L)
r1
-0.170
0.239
-0.220
0.491
0.065
0.819
0.137
0.515
-0.061
0.754
-0.023
0.914
0.030
0.866
0.115
0.427
r2
-0.482
<0.001
-0.004
0.991
-0.079
0.780
-0.389
0.055
-0.262
0.170
-0.279
0.186
-0.207
0.241
-0.159
0.269
r3
-0.063
0.663
0.068
0.834
0.387
0.154
0.332
0.105
0.231
0.228
-0.081
0.706
-0.179
0.310
0.139
0.335
r4
-0.109
0.453
-0.011
0.974
0.335
0.222
-0.171
0.413
0.003
0.986
-0.155
0.468
-0.086
0.629
-0.001
0.994
HbA1c (%)
r1
-0.233
0.104
0.095
0.768
0.265
0.340
0.093
0.658
0.258
0.177
0.122
0.570
0.098
0.580
0.095
0.511
r2
-0.409
0.003
-0.212
0.507
0.032
0.909
0.139
0.507
-0.100
0.606
0.104
0.629
-0.055
0.759
0.175
0.224
r3
-0.060
0.681
0.050
0.877
0.518
0.048
0.254
0.221
0.091
0.638
0.043
0.843
0.047
0.791
0.180
0.211
r4
-0.089
0.539
-0.007
0.983
0.483
0.068
0.289
0.161
0.138
0.476
0.222
0.298
-0.128
0.469
0.110
0.448
Cr (mg/L)
r2
0.419
0.002
-0.154
0.634
0.464
0.081
0.283
0.170
0.557
0.002
0.774
<0.001
0.470
0.006
0.500
<0.001
r3
0.096
0.505
0.121
0.707
0.216
0.438
0.390
0.054
0.022
0.910
0.228
0.284
0.143
0.419
0.149
0.302
r4
0.366
0.009
-0.655
0.021
0.082
0.771
-0.169
0.421
-0.037
0.849
-0.157
0.463
0.112
0.528
-0.106
0.465
UCr (mg/L)
r2
-0.116
0.421
-0.409
0.186
-0.041
0.884
0.096
0.647
-0.153
0.428
0.217
0.308
0.068
0.704
0.127
0.379
r4
0.665
<0.001
-0.032
0.921
0.623
0.013
0.186
0.375
0.010
0.957
0.298
0.157
0.374
0.030
0.255
0.074
Fe (mg/L)
r4
-0.020
0.892
-0.102
0.753
-0.243
0.383
0.174
0.406
0.097
0.616
-0.063
0.771
0.021
0.905
0.092
0.525
r1 means the correlation coefficient between serum Cr and other indicators; r2 is the correlation coefficient between serum Fe and other indicators; r3 is the correlation coefficient between urinary Cr and other indicators; r4 is the correlation coefficient between urinary Fe and other indicators.P<0.05 means significant difference.
