Table 5.

Serum levels of adiponectin, leptin and IL-1 β in type 2 diabetic elderly patients with and without MCI according to BMI values

Variable	Type 2 diabetes with MCI	Type 2 diabetes without MCI	Z/t	P value
Adiponectin (μg/ml)
BMI ≤ 25.9	13.04 ± 3.98	13.5 ± 3.83	0.27	0.78
BMI 26–27.9*	9.37 ± 3.33	11.76 ± 3.05	2.68	0.009
BMI 28–29.9*	6.14 ± 2.85	10.38 ± 2.77	4.34	<0.001
BMI ≥ 30*	2.89 ± 1.59	5.44 ± 3.78	3.39	0.001
Leptin (ng/ml)
BMI ≤ 25.9	7.6 ± 2.94	8.4 ± 5.28	0.32	0.74
BMI 26–27.9*	19.29 ± 5.0	15.6 ± 5.43	−2.43	0.017
BMI 28–29.9*	21.76 ± 8.65	17.94 ± 3.34	−2.11	0.04
BMI ≥ 30*	32.98 ± 11.5	27.03 ± 7.31	−2.51	0.014
IL-1 β (ng/ml)
BMI ≤ 25.9*	8.82 ± 0.71	6.6 ± 2.23	−2.16	0.04
BMI 26–27.9	9.4 ± 0.75	9.27 ± 1.47	−0.33	0.73
BMI 28–29.9*	13.56 ± 3.44	9.96 ± 1.18	−5.17	<0.001
BMI ≥ 30*	21.97 ± 1.51	16.09 ± 8.6	−2.94	0.004

*significance, p < 0.05

MCI mild cognitive impairment, BMI body mass index. Data are mean – SD values. Mann–Whitney U test (Z), or t test was used to test for significant differences