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. 2019 Nov 28;9(11):e029253.
doi: 10.1136/bmjopen-2019-029253.

Interaction of lipid accumulation product and family history of hypertension on hypertension risk: a cross-sectional study in the Southern Chinese population

JunXuan Huang  1   2 , XinYu Bao  1 , YiXian Xie  1 , XiaoXia Zhang  1 , Xin Peng  1 , Yan Liu  1 , MengJiao Cheng  1 , JinXiang Ma  3 , PeiXi Wang  4
Affiliations

Interaction of lipid accumulation product and family history of hypertension on hypertension risk: a cross-sectional study in the Southern Chinese population

JunXuan Huang et al. BMJ Open. .

Abstract

Objectives: This study aimed at investigating the applicability of a novel index based on waist circumference (WC) and triglyceride (TG) which was named lipid accumulation product (LAP) in the Southern Chinese population, and compared the predictive effects of LAP and other obesity indicators on hypertension risk. Moreover, this study investigated the interactive effects of LAP and family history of hypertension.

Methods: A total number of 2079 of community-dwelling adults in Southern China were enrolled in this cross-sectional study. The participants underwent questionnaire surveys, anthropometric tests and laboratory examinations. Themultinomial logistic regression model and receiver operating characteristic curves, including LAP, body mass index (BMI), waist-to-hip ratio (WHR), WC and TG, were used to assess the association between hypertension risk and obesity indexes. The interaction effects were evaluated by relative excess risk of interaction (RERI), attributable proportion due to interaction (AP) and synergy index (SI).

Results: Higher LAP levels have a relatively higher risk of having hypertension in both sexes (males: adjusted OR=2.79 per SD increase, 95% CI 1.43 to 5.44, p<0.001; females: adjusted OR=3.15, 95% CI 1.56 to 6.39, p<0.001). LAP (area under the curve=0.721; 95% CI 0.680 to 0.761) is a better indicator in identifying hypertension risk than BMI, WHR and TG in females, but WC performed better in males. A significant interaction between LAP and family history of hypertension was observed in males (RERI=1.652, 95% CI 0.267 to 3.037; AP=0.516, 95% CI 0.238 to 0.794; SI=3.998, 95% CI 0.897 to 17.820), but there is no statistically significant difference in females.

Conclusions: LAP significantly associates with hypertension risk in the Southern Chinese population. It has better performance than BMI, WHR and TG on predicting hypertension risk of the Southern Chinese female population. Moreover, LAP and family history of hypertension might synergistically increase the risk of hypertension.

Keywords: LAP; family history; hypertension; interaction effect.

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
The receiver operating characteristic (ROC) curve of different obesity indexes in predicting hypertension in males. BMI, body mass index; LAP, lipid accumulation product; TG, triglyceride; WC, waist circumference; WHR, waist-to-hip ratio.
Figure 2
Figure 2
The receiver operating characteristic (ROC) curve of different obesity indexes in predicting hypertension in females. BMI, body mass index; LAP, lipid accumulation product; TG, triglyceride; WC, waist circumference; WHR, waist-to-hip ratio.
See this image and copyright information in PMC

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