Association of Serum Melatonin Level with Mild Cognitive Impairment in Type 2 Diabetic Patients: A Cross-Sectional Study

Table 3

The correlations of serum melatonin level with other clinical indicators and cognitive performances in T2DM patients.

Variables	Melatonin
	r	value
Age (year)	−0.159	0.012
Education (years)	0.075	0.237
BMI	−0.140	0.027
Diabetes duration (years)	−0.183	0.004
FBG (mmol/L)	−0.072	0.260
HbA1c (%)	−0.148	0.020
TG (mmol/L)	−0.056	0.382
TC (mmol/L)	−0.025	0.691
LDL-C (mmol/L)	−0.106	0.097
HDL-C (mmol/L)	0.150	0.019
Creatinine (μmol/L)	−0.075	0.239
Hs-CRP (ng/mL)	−0.234	<0.001
MoCA	0.353	<0.001

Abbreviations: BMI: body mass index; FBG: fasting blood glucose; HbAlc: glycosylated hemoglobin; TG: triglyceride; TC: total cholesterol; LDL-C: low-density lipoprotein cholesterol; HDL-C: high-density lipoprotein cholesterol; hs-CRP: high sensitivity C-reactive protein; MoCA: Montreal Cognitive Assessment. Spearman correlation was performed.