Association of hemoglobin glycation index and its interaction with obesity/family history of hypertension on hypertensio

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RESEARCH ARTICLE

Open Access

Association of hemoglobin glycation index and its interaction with obesity/family history of hypertension on hypertension risk: a community‑based cross‑sectional survey Jing Mi1†, Jian Song1†, Yingying Zhao2 and Xuesen Wu1* 

Abstract  Background:  Hemoglobin glycation index (HGI) is considered to be a convenient measurable indicator to assess the inter-individual variation of HbA1c. In the present study, we tested the relationship between HGI and risk of hypertension, and further explored the possible interacting influences of HGI with other such factors on hypertension risk among Chinese individuals. Methods:  The eligible subjects were chosen from a community-based cross-sectional survey in China. We collected relevant data and clinical indicators for each participant. HGI was calculated as “measured HbA1c-predicted HbA1c” and divided into four categories according to quartile. The following indicators were used to assess interactive effects: (1) relative excess risk due to interaction (RERI); (2) attributable proportion due to interaction (AP); and (3) synergy index (SI). Statistical analysis was performed using R software. Results:  Specifically, 1777 eligible participants were selected in this cross-sectional survey. There were 433 subjects who were identified to have hypertension (24.4%). A significant increase in the prevalence of hypertension from Q1 to Q4 of HGI was observed (p