Analysis of Serum and Urinal Copper and Zinc in Chinese Northeast Population with the Prediabetes or Diabetes with and without Complications

Table 4

Associations between serum Cu or urinary Cu level as a continuous variable and laboratory parameters in T2D subjects.

	T2D Con (𝑛=29)				DN (𝑛=24)				DR (𝑛=34)				DPN (𝑛=50)
	Cu		UCu		Cu		UCu		Cu		UCu		Cu		UCu
	𝑟	𝑃	𝑟	𝑃	𝑟	𝑃	𝑟	𝑃	𝑟	𝑃	𝑟	𝑃	𝑟	𝑃	𝑟	𝑃
Glu	0.095	0.624	−0.180	0.351	0.289	0.171	0.321	0.127	0.016	0.929	0.129	0.468	0.296	0.037*	0.046	0.753
HbA1c	0.382	0.041*	−0.307	0.106	0.440	0.032*	0.194	0.365	0.406	0.017*	0.031	0.863	0.630	<0.001*	0.161	0.264
RBC	−0.138	0.477	−0.080	0.679	−0.136	0.525	0.134	0.532	−0.039	0.828	−0.093	0.601	0.017	0.906	0.127	0.381
Hb	0.093	0.63	−0.133	0.491	−0.145	0.500	0.084	0.697	0.125	0.483	−0.006	0.971	−0.031	0.833	0.073	0.612
UCu	−0.210	0.273	—	—	−0.067	0.755	—	—	0.116	0.514	—	—	0.258	0.071	—	—
Zn	0.342	0.069	0.117	0.168	0.281	0.184	−0.493	0.014*	0.105	0.553	−0.195	0.270	0.219	0.127	0.136	0.347
UZn	0.224	0.243	0.545	0.382	−0.481	0.017*	0.179	0.403	−0.048	0.786	0.028	0.873	0.327	0.021*	0.319	0.024*
BUN	0.042	0.828	0.350	0.062	0.087	0.687	0.152	0.479	0.033	0.854	−0.146	0.411	0.200	0.164	0.148	0.305
Cre	−0.322	0.089	0.283	0.137	−0.164	0.445	0.053	0.807	0.020	0.912	0.261	0.137	−0.099	0.492	0.320	0.023*
eGFR	0.083	0.670	−0.372	0.047*	0.040	0.852	−0.115	0.591	0.086	0.630	−0.109	0.539	0.068	0.641	−0.276	0.052
CHO	−0.321	0.090	0.075	0.699	0.154	0.472	−0.117	0.586	0.010	0.955	−0.173	0.329	0.192	0.181	0.077	0.595
TG	−0.152	0.433	0.061	0.752	0.080	0.711	−0.278	0.189	0.016	0.930	−0.092	0.607	0.148	0.307	−0.058	0.689
HDL	0.147	0.446	−0.049	0.799	−0.090	0.675	0.420	0.041*	0.189	0.286	−0.273	0.118	0.107	0.459	−0.038	0.795
LDL	−0.397	0.033*	0.049	0.800	0.198	0.353	0.197	0.357	0.132	0.457	0.003	0.986	0.198	0.168	0.156	0.281

Data presentation and abbreviations spelt out forms are the same as the description for Table 1. *𝑃<0.05 for the association.