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J Endocrinol Invest. 2015 Oct;38(10):1075-82. doi: 10.1007/s40618-015-0291-x. Epub 2015 Apr 23.

The association and interaction analysis of hypertension and uric acid on cardiovascular autonomic neuropathy.

Author information

1
Department of Internal Medicine, Shanghai Anting Hospital, Jiading, Shanghai, China. xpliao135@163.com.
2
Department of Internal Medicine, Shanghai Anting Hospital, Jiading, Shanghai, China. xavierzhong@yeah.net.
3
Department of Endocrinology and Metabolism, Shanghai Tongji Hospital, Tongji University School of Medicine, Room 517, Building 2nd, 389 Xincun Road, Shanghai, 200063, China. zengfangfang1985@163.com.
4
Department of Endocrinology and Metabolism, Shanghai Tongji Hospital, Tongji University School of Medicine, Room 517, Building 2nd, 389 Xincun Road, Shanghai, 200063, China. albert.tang@163.com.

Abstract

BACKGROUND:

The purpose of this study was to evaluate associations among hypertension (HTN) and uric acid (UA) with cardiovascular autonomic neuropathy (CAN), and to estimate the extent to which synergistic effects of HTN and UA affect the outcome in a Chinese population.

METHOD:

We conducted a large-scale, population-based study to analyze the association and interaction of the two factors for CAN in a sample of 2092 Chinese people. Univariate and multiple linear regression (MLR) analysis were employed to detect these relationships. Interaction on an additive scale can be calculated by using the relative excess risk due to interaction (RERI), the proportion attributable to interaction (AP), and the synergy index (S).

RESULT:

After adjusting for confounding factors, MLR showed that HTN was independently associated with CAN (P < 0.001). A significant interaction effect of UA and HTN on CAN was detected (P = 0.035; RETI = 1.483, 95 % CI 0.415-2.551; AP = 0.360, 95 % CI -0.043 to 0.76 and S = 1.908, 95 % CI 0.152-3.66).

CONCLUSION:

Our findings suggest that HTN is independently and significantly associated with CAN and offer evidence to support the hypothesis that HTN and UA have interaction effects to influence the progression of CAN.

KEYWORDS:

Cardiovascular autonomic neuropathy; Hypertension; Interaction analysis; Synergistic effect; Uric acid

PMID:
25903694
DOI:
10.1007/s40618-015-0291-x
[Indexed for MEDLINE]

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