Association of total homocysteine with blood pressure in a general population of Chinese adults: a cross-sectional study in Jiangsu province, China. Issue 6 (19th June 2018)

• Record Type: Journal Article
• Authors: Wu, Hongxu; Wang, Binyan; Ban, Qianyun; Chen, Lulu; Yan, Dong; Yu, Yaren; Song, Yun; Liu, Chengzhang; Cao, Jingjing; Zhang, Jingping; Zhang, Yuanyuan; Zhang, Tao; Zhang, Hao; Guo, Huiyuan; Tang, Genfu; Zhang, Yan; Li, Jianping; Huo, Yong; Zang, Tonghua; Qin, Xianhui; Xu, Xiping
• Is Part Of: BMJ open. Volume 8:Issue 6(2018)
• Publication Date: 2018-06-19
• Subjects: total homocysteine -- blood pressure -- hypertension -- alcohol drinking; Medicine -- Research -- Periodicals; 610.72
• DOI: 10.1136/bmjopen-2017-021103
• Languages: English
• ISSNs: 2044-6055

Abstract

Abstract : Objectives: We aimed to evaluate the relation of total homocysteine (tHcy) concentrations with systolic blood pressure (SBP) and diastolic blood pressure (DBP) levels, and examine the possible modifiers in the association among a general population of Chinese adults. Design: A cross-sectional study. Setting: The study was conducted within 21 communities in Lianyungang of Jiangsu province, China. Participants: A total of 26 648 participants aged ≥35 years and with no antihypertensive drug use were included in the final analysis. Results: Overall, there was a positive association between tHcy concentrations and SBP (per 5 μmol/L tHcy increase: adjusted β=0.45 mm Hg; 95% CI 0.29 to 0.61) or DBP levels (per 5 μmol/L tHcy increase: adjusted β=0.47 mm Hg; 95% CI 0.35 to 0.59). Compared with participants with tHcy <10 μmol/L, significantly higher SBP levels were found in those with tHcy concentrations of 10 to <15 (adjusted β=0.80 mm Hg; 95% CI 0.32 to 1.28) and ≥15 µmol/L (adjusted β=1.79 mm Hg; 95% CI 1.20 to 2.37; p for trend <0.001). Consistently, significantly higher DBP levels were found in participants with tHcy concentrations of 10 to <15 (adjusted β=0.86 mm Hg; 95% CI 0.49 to 1.22) and ≥15 µmol/L (adjusted β=2.01 mm Hg; 95% CI 1.57 to 2.46; p for trend <0.001), respectively as compared with those with <10 μmol/L. Furthermore, a stronger association between tHcy and SBP (p for interaction=0.009) or DBP (p for interaction=0.067) was found in current alcohol drinkers. Conclusion: Serum tHcy concentrations were positively associated with both SBP and DBP levels in a general Chinese adult population. The association was stronger in current alcohol drinkers.