Association between H-type hypertension and Cognitive impairment in Kailuan community of China: A cross-sectional study.

Background Hypertension (HTN) and hyperhomocysteinemia (HHcy) have been reported to be independent predictors of cognitive impairment. However, the conclusions were inconsistent and few studies had reported the combination prediction of HTN and HHcy for cognitive impairment. Our study aimed to evaluate the association between H-type HTN, HTN and HHcy and the risk of cognitive impairment.Methods We used a cross-sectional study- participants aged over 40 years, which were selected from Kailuan communities in China. Cognitive impairment was determined by MMSE scale (MMSE<24). Multivariable logistic regression was used to analyze the association of H-type HTN and cognitive impairment, and we also made stratification analysis by age of participants.Results A total of 3454 participants were included in our study, and ≥65 years old was 16.79%; the gender of male was 56.77%. The prevalence of cognitive impairment in the H-type HTN (HTN+/HHcy+) group (10.74%) was significantly higher than other three groups (2.92%, 6.42%, 5.86%, respectively). The logistic regression results showed that participants with H-type HTN was positively associated with cognitive impairment risk (OR = 2.57, 95% CI: 1.38-4.80). Similar results were observed in participants stratified by age (65 years) (<65 years old: OR =2.01, 95% CI: 0.87- 4.67 ; ≥65 years old: OR=3.63, 95% CI: 1.32-10.01).Conclusion Our finding indicated that H-type HTN was positively associated with the risk of cognitive impairment, especially in ≥ 65 years old. H-type HTN could be the major intervention measures to decrease the incidence of cognitive impairment as well as the stroke in Health Practice Management.