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Predictive ability of the Chinese visceral adiposity index for incident hypertension in working-aged Koreans
Ju Young Jung, Chang-Mo Oh, Hyun chul Jo, Sung Keun Park
Epidemiol Health. 2024;46:e2024034.   Published online February 27, 2024
DOI: https://doi.org/10.4178/epih.e2024034
  • 1,804 View
  • 103 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
The Chinese visceral adiposity index (CVAI) was developed to assess visceral adipose tissue in the Asian population. This study evaluated the predictive ability of the CVAI for incident hypertension in Korean adults.
METHODS
The study participants included 128,577 Koreans without hypertension. They were grouped in quartiles according to body mass index (BMI), waist circumference (WC), visceral adipose index (VAI), and CVAI values. The Cox proportional hazard assumption was used to evaluate the hazard ratio (HR) and 95% confidence interval (CI) for incident hypertension (adjusted HR [95% CI]) according to quartile level across a follow-up period of 6.9 years. Subgroup analyses were conducted by gender and obesity. The area under the curve was calculated to compare the predictive abilities of all indices (BMI, WC, VAI, and CVAI) for incident hypertension.
RESULTS
The CVAI was proportionally associated with the risk of hypertension in all participants (quartile 1: reference; quartile 2: 1.71 [95% CI, 1.59 to 1.82]; quartile 3: 2.41 [95% CI, 2.25 to 2.58]; and quartile 4: 3.46 [95% CI, 3.23 to 3.71]). Time dependent receiver operating characteristic curve analysis indicated that the CVAI was superior to BMI, WC, and VAI in predicting hypertension at the 2-year, 4-year, 6-year, and 8-year follow-ups. This finding was also observed in the gender and obesity subgroups. The predictive ability of the CVAI was greater in the women and non-obese subgroups than in the men and obese subgroups.
CONCLUSIONS
The CVAI was a stronger predictor of hypertension than BMI, WC, and VAI.
Summary
Korean summary
고혈압은 심혈관 질환의 주요 원인이다. 내장 지방은 비만에서 고혈압의 병태 생리에 중요한 역할을 한다. 최근의 연구는 Chinese visceral adiposity index (CVAI)가 다른 비만 지표 보다 아시아 인에서 심혈관 질환의 고 위험군을 더욱 잘 구분해 낸다는 것을 보고하였다. 우리는 체질량 지수, 허리 둘레, visceral adiposity index, CVAI의 고혈압에 대한 예측력을 비교 하였다. 우리의 연구는 CVAI가 고혈압을 예측하는데 있어 다른 지표 보다 우월하다는 것을 보여주었다.
Key Message
Hypertension is a leading risk factor for cardiovascular disease. It is known that visceral adiposity has an important role in the pathogenesis of hypertension in obesity. Recent studies have demonstrated that Chinese visceral adiposity index (CVAI) is more discriminative the high risk group for cardiovascular disease in Asians than other obesity indices. We compared the predictive ability for the development hypertension among body mass index, waist circumference, visceral adiposity index, and CVAI. Our study showed that CVAI is superior to predict hypertension than other indices.
Obesity parameters in relation to lung function levels in a large Chinese rural adult population
Xiang Zeng, Dongling Liu, Zhen An, Huijun Li, Jie Song, Weidong Wu
Epidemiol Health. 2021;43:e2021047.   Published online August 3, 2021
DOI: https://doi.org/10.4178/epih.e2021047
  • 10,794 View
  • 231 Download
  • 7 Web of Science
  • 9 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
The association between obesity parameters and lung function indicators in the general Chinese rural adult population remains unclear.
METHODS
In total, 8,284 Chinese adults aged 20 years to 80 years old from Xinxiang were recruited. Obesity-related parameters, including body mass index (BMI), waist circumference (WC), hip circumference (HC), waist-to-hip ratio (WHR), waistto-height ratio (WHtR), body fat percentage (BFP), basal metabolism, and visceral fat index, and lung function parameters such as forced vital capacity and forced expiratory volume in first second were measured.
RESULTS
The total prevalence of obesity defined by BMI, WC, WHR, WHtR, and BFP was 23.2%, 58.2%, 66.7%, 69.2%, and 56.5%, respectively. Spearman correlation analyses showed significant correlations between all obesity-related parameters and lung function. Linear regression analyses further demonstrated that BMI, WHtR, BFP, and general obesity defined using those indicators were negatively associated with lung function, while WC, WHR, and central obesity defined accordingly were positively associated with lung function. The relationship between general obesity and lung function was more evident in women than in men, while the link between central obesity and lung function was more obvious in men than in women.
CONCLUSIONS
Obesity is closely related to lung function in the general Chinese adult population. Weight control and loss are important strategies to improve lung function and respiratory health.
Summary
Key Message
This cross-sectional sduty clarify the relationship between several obesity parameters and lung function indicators on rural adult population in central China using big data and stratified analyses. Specifically, the obesity group has a lower level of lung function than the non-obesity group, and there is an opposite effect of general obesity and central obesity on lung function.

Citations

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Epidemiol Health : Epidemiology and Health