To explore the relationship between mild cognition impairment(MCI) and components of metabolic syndrome in the elderly.

A total of 293 patients aged 65 years and older with an average age of (78.8 ± 7.5) years who met the inclusion criteria were included.The Montreal Cognitive Assessment Scale(MoCA)was used to evaluate cognitive function.The components of the metabolic syndrome were compared between the MCI and the normal cognitive function(NC) groups.Binary Logistic regression analysis was used to analyze the relationship between cognitive function and components of the metabolic syndrome.

The levels of body mass index(BMI)and tryglicerides(TG)were lower in the MCI group than in the NC group[BMI, (22.9±3.7)kg/m²vs.(25.3±3.3)kg/m², t=3.124, P=0.002; TG, 1.2±0.6 mmol/L vs. 1.4±0.7 mmol/L, t=2.615, P=0.009]. The differences in proportions of hypertension and diabetes and in levels of fasting blood glucose and high-density lipoprotein cholesterol had no statistically significance between the MCI group and the NC group(all P>0.05). Binary multivariate Logistic regression analysis showed that after adjusting for age and education, BMI was independently associated with MCI, and as BMI increased, the risk of MCI decreased(OR=0.901, 95%CI: 0.838-0.968, P=0.004). In elderly men, after adjusting for age, education level and smoking history, TG was independently associated with MCI, and as TG increased, the risk of MCI decreased(OR=0.446, 95%CI: 0.249-0.874, P=0.017). While in elderly women, no independent correlation between TG and MCI was observed.

BMI is independently associated with MCI.Screening for cognitive function among low-level BMI elderly is helpful to identify MCI.The relationship between TG and MCI is different between different genders, and different standards might be adopted for the management of TG in elderly MCI patients with different genders.

Cognition disorders; Metabolic syndrome X