Table 2.

Levels of ferritin and metal elements in the serum of diabetes and nondiabetes study subjects

Tested parameters	Study subjects		t-test	p-value
	Diabetes (n=214)	Nondiabetes (n=214)
Zn+2 (µg/dL)	46.26±21.03	72.41±21.47	−12.72	<0.0001*
Mg+2 (mg/dL)	0.86±0.88	1.82±0.76	−11.95	<0.0001*
Cr+3 (µg/L)	0.82±1.42	0.35±0.43	4.57	<0.0001*
Fe+3 (µg/dL)	55.95±20.99	71.19±25.72	−6.70	<0.0001*
Ferritin (µg/L)	24.96±18.60	34.99±18.53	−5.58	<0.0001*
Cu+2 (µg/dL)	79.61±27.38	71.67±22.38	3.28	<0.0001*
Mn+2 (µg/L)	0.65±0.91	0.66±0.45	−0.18	0.853
Ca+2 (mg/dL)	4.28±1.19	4.36±0.56	−0.83	0.407
Po4−3 (mg/dL)	2.16±0.98	2.27±0.56	−1.40	0.162

Notes: Data were presented as mean (standard deviation).

^*p<0.05 indicates a significant difference. Independent t-test.