Published in:
Open Access
01-12-2022 | Nutrition | Research
Combined association of triglyceride-glucose index and systolic blood pressure with all-cause and cardiovascular mortality among the general population
Authors:
Yu Yu, Min Gu, Hao Huang, Sijing Cheng, Yu Deng, Chi Cai, Xuhua Chen, Hongxia Niu, Xiaohui Ning, Wei Hua
Published in:
Journal of Translational Medicine
|
Issue 1/2022
Login to get access
Abstract
Background
The combined association of triglyceride-glucose (TyG) index and different systolic blood pressure (SBP) levels with all-cause and cardiovascular mortality among the general population remains unclear.
Methods
In this study, 6245 individuals were from the National Health and Nutrition Examination Survey (1999–2002). The study endpoints were all-cause and cardiovascular mortality. Multivariate Cox proportional hazards regression models were used to explore the combined association of TyG index and different SBP levels with all-cause and cardiovascular mortality.
Results
During a mean follow-up period of 66.8 months, a total of 284 all-cause deaths (331/100000 person-years) and 61 cardiovascular deaths (66/100000 person-years) were recorded. Multivariate Cox regression analysis revealed that the combination of low TyG index and low SBP (< 120 mmHg and < 130 mmHg) was associated with a reduced risk of all-cause and cardiovascular mortality than others. However, survival benefit was not observed in the combined group with the low TyG index and SBP < 140 mmHg. Furthermore, the mortality rate in the combined group of low TyG index and low SBP gradually increased with the elevation of SBP level.
Conclusion
The combination of low TyG index and low SBP (< 120 mmHg and < 130 mmHg) was associated with a lower risk of all-cause and cardiovascular mortality. However, no survival benefit was observed in the combined group of low TyG index and SBP < 140 mmHg.