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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
  • 1,247 View
  • 80 Download
AbstractAbstract AbstractSummary PDF
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.
Changes in proteinuria and the associated risks of ischemic heart disease, acute myocardial infarction, and angina pectoris in Korean population
Sung Keun Park, Ju Young Jung, Min-Ho Kim, Chang-Mo Oh, Eunhee Ha, Eun Hye Yang, Hyo Choon Lee, Soonsu Shin, Woo Yeon Hwang, Sangho Lee, So Youn Shin, Jae-Hong Ryoo
Epidemiol Health. 2023;45:e2023088.   Published online September 30, 2023
DOI: https://doi.org/10.4178/epih.e2023088
  • 2,495 View
  • 157 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Proteinuria is widely used to predict cardiovascular risk. However, there is insufficient evidence to predict how changes in proteinuria may affect the incidence of cardiovascular disease.
METHODS
The study included 265,236 Korean adults who underwent health checkups in 2003-2004 and 2007-2008. They were categorized into 4 groups based on changes in proteinuria (negative: negative → negative; resolved: proteinuria ≥1+ → negative; incident: negative → proteinuria ≥1+; persistent: proteinuria ≥1+ → proteinuria ≥1+). We conducted 6 years of follow-up to identify the risks of developing ischemic heart disease (IHD), acute myocardial infarction (AMI), and angina pectoris according to changes in proteinuria. A multivariate Cox proportional-hazards model was used to calculate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for incident IHD, AMI, and angina pectoris.
RESULTS
The IHD risk (expressed as HR [95% CI]) was the highest for persistent proteinuria, followed in descending order by incident and resolved proteinuria, compared with negative proteinuria (negative: reference, resolved: 1.211 [95% CI, 1.104 to 1.329], incident: 1.288 [95% CI, 1.184 to 1.400], and persistent: 1.578 [95% CI, 1.324 to 1.881]). The same pattern was associated with AMI (negative: reference, resolved: 1.401 [95% CI, 1.048 to 1.872], incident: 1.606 [95% CI, 1.268 to 2.035], and persistent: 2.069 [95% CI, 1.281 to 3.342]) and angina pectoris (negative: reference, resolved: 1.184 [95% CI, 1.065 to 1.316], incident: 1.275 [95% CI, 1.160 to 1.401], and persistent: 1.554 [95% CI, 1.272 to 1.899]).
CONCLUSIONS
Experiencing proteinuria increased the risks of IHD, AMI, and angina pectoris even after proteinuria resolved.
Summary
Korean summary
- 본 연구의 목적은 요 시험지 검사를 통해 확인된 단백뇨의 3-5년간의 변화 수준에 따른 허혈성 심질환, 급성 심근 경색, 협심증의 발생 위험을 평가하는 것이다. - 지속적으로 단백뇨가 음성인 집단에 (negative proteinuria) 비해서, 단백뇨가 있었다 사라진 집단 (resolved proteinuria), 새로이 단백뇨가 생긴 집단 (incident proteinuria), 지속적으로 단백뇨가 존재하는 집단 (persistent proteinuria)은 유의하게 증가한 허혈성 심질환, 급성 심근 경색, 협심증의 발생 위험을 나타내었다. - 이러한 결과는 단백뇨가 일단 발생한 사람은, 나중에 사라지더라도, 관상 동맥 질환에 대한 위험이 높으며, 이에 대한 관리와 주의가 필요하다는 것을 시사한다.
Key Message
- The present study was to evaluate the risk of incident ischemic heart disease, acute myocardial infarction, and angina pectoris according to changes in urine dipstick proteinuria over 3-5 years. - Compared with persistently negative proteinuria (negative → negative), resolved proteinuria (positive → negative), incident proteinuria (negative → positive), and persistent proteinuria (positive → positive) had the increased risk of ischemic heart disease, acute myocardial infarction, and angina pectoris. - These results suggest that once manifested proteinuria lead to the increased risk of coronary artery disease, regardless of changes in proteinuria.
The risk of gastric cancer according to changes in smoking status among Korean men
Sung Keun Park, Min-Ho Kim, Chang-Mo Oh, Eunhee Ha, Eun Hye Yang, Woo Yeon Hwang, Ann Hee You, Jae-Hong Ryoo
Epidemiol Health. 2022;44:e2022086.   Published online October 7, 2022
DOI: https://doi.org/10.4178/epih.e2022086
  • 4,061 View
  • 206 Download
  • 1 Web of Science
  • 1 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Smoking is a risk factor for gastric cancer. Studies have shown that the risk of gastric cancer can vary by smoking status and smoking amount at a single point in time. However, few data have been reported about the effect of changes in smoking status over time on the risk of gastric cancer.
METHODS
This study collected data from the National Health Insurance Corporation in Korea on 97,700 Korean men without gastric cancer who underwent health check-ups from 2002 to 2013. The smoking status (never smoked, quit smoking, and currently smoking) of study participants was assessed in 2003-2004 and 2009, and the results were categorized into 7 groups: never-never, never-quit, never-current, quit-quit, quit-current, current-quit, and current-current. Participants were followed until 2013 to identify incident gastric cancer. A multivariate Cox proportional hazard model was used to calculate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for incident gastric cancer according to changes in smoking status and smoking amount (pack-years).
RESULTS
Compared with group 1 (never-never), participants currently smoking in 2009 (never-current, quit-current, and current-current) had higher HRs for gastric cancer (never-quit: 1.077; 95% CI, 0.887 to 1.306, never-current: 1.347; 95% CI, 0.983 to1.846, quit-quit: 1.086; 95% CI, 0.863 to 1.366, quit-current: 1.538; 95% CI, 1.042 to 2.269, current-quit: 1.339; 95% CI, 1.077 to 1.666, and current-current: 1.589; 95% CI, 1.355 to 1.864, respectively). The risk for gastric cancer was highest in heavy smokers, followed by moderate smokers.
CONCLUSIONS
In all categories of smoking status, current smoking was associated with the highest risk of gastric cancer. Heavy smoking was associated with an increased risk of gastric cancer, even in former smokers.
Summary
Korean summary
현재 흡연자의 경우 과거 흡연여부와 관계 없이 위암의 위험성이 가장 증가한다. 과거 흡연자의 경우에는 흡연량이 많은 경우에는 위암의 위험성이 증가한다. 이런 결과는 금연이나 흡연량을 줄이는 것이 위암의 위험성을 감소시키는데 매우 중요한 요인이란 것을 확인할 수 있다.
Key Message
Current smoking was associated with an increased risk of gastric cancer, regardless of previous smoking status. Although former smoking was not associated with an increased risk of gastric cancer, former smokers with a history of heavy smoking had an increased risk of gastric cancer. These results suggest that smoking cessation and reducing smoking amounts are both important factors in reducing the risk of gastric cancer.

Citations

Citations to this article as recorded by  
  • Gastric dysplasia in random biopsies: the influence of Helicobacter pylori infection and alcohol consumption in the presence of a lesion
    Ana Isabel Ferreira, Tiago Lima Capela, Vítor Macedo Silva, Sofia Xavier, Pedro Boal Carvalho, Joana Magalhães, José Cotter
    Scandinavian Journal of Gastroenterology.2024; 59(2): 125.     CrossRef
The influence of the dietary intake of vitamin C and vitamin E on the risk of gastric intestinal metaplasia in a cohort of Koreans
Sung Keun Park, Yeongu Chung, Chang-Mo Oh, Jae-Hong Ryoo, Ju Young Jung
Epidemiol Health. 2022;44:e2022062.   Published online July 29, 2022
DOI: https://doi.org/10.4178/epih.e2022062
  • 6,275 View
  • 194 Download
  • 1 Web of Science
  • 2 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Studies have suggested that the dietary intake of antioxidant vitamins, such as vitamin C and vitamin E, has a potential role in inhibiting gastric carcinogenesis. The present study investigated the effect of antioxidant vitamins on the incidence of gastric intestinal metaplasia (GIM).
METHODS
This study included 67,657 Koreans free of GIM who periodically underwent health check-ups. Dietary intake was assessed by a semiquantitative food frequency questionnaire based on the Korean National Health and Nutrition Examination Survey. Participants were categorized into 4 groups by quartiles of dietary vitamin C and vitamin E intake. The Cox proportional hazard assumption was used to determine the multivariable hazard ratio (HR) and 95% confidence interval (95% CI) for GIM.
RESULTS
The third and fourth quartiles of vitamin C intake had a lower risk of GIM than the first quartile (multivariable-adjusted HR, 0.95; 95% CI, 0.88 to 1.03 in the second quartile, HR, 0.88; 95% CI, 0.81 to 0.97 in the third quartile, and HR, 0.85; 95% CI, 0.76 to 0.95 in the fourth quartile). Vitamin E intake greater than the second quartile level was significantly associated with a lower risk of GIM than the first quartile (multivariable-adjusted HR, 0.90; 95% CI, 0.82 to 0.97 in the second quartile, HR, 0.90; 95% CI, 0.82 to 0.99 in the third quartile, and HR, 0.83; 95% CI, 0.74 to 0.94 in the fourth quartile). This association was observed only in the subgroup analysis for men.
CONCLUSIONS
Higher dietary intake of vitamin C and vitamin E was associated with a lower risk of GIM.
Summary
Korean summary
본 연구에서는 6만명 이상의 한국인을 대상으로 비타민 C와 비타민 E의 섭취량과 장기적인 위 장상피화생 (GIM) 발생 위험도의 상관 관계를 연구했다. 우리는 비타민 C와 E 섭취량이 많은 근로 연령대의 한국인에서 낮은 위 장상피화생 발생 위험을 확인했다. 이 연관성은 여성보다 남성에서 더 분명하게 나타났다.
Key Message
1. This study investigated the long-term effect of vitamin C and vitamin E intake on the longitudinal risk of GIM in more than 60,000 Koreans 2. We found increased intake of Vitamin C/E is associated with lower incidental risk of GIM in working aged Korean. 3. This association was more prominent in men than women.

Citations

Citations to this article as recorded by  
  • Dietary Intake of Antioxidant Vitamins and Its Relation to the Progression of Chronic Kidney Disease in Adults With Preserved Renal Function
    Sung Keun Park, Chang-Mo Oh, Eugene Kim, Ju Young Jung
    Journal of Renal Nutrition.2024;[Epub]     CrossRef
  • Longitudinal analysis for the risk of depression according to the consumption of sugar-sweetened carbonated beverage in non-diabetic and diabetic population
    Sung Keun Park, Yeongu Chung, Yoosoo Chang, Chang-Mo Oh, Jae-Hong Ryoo, Ju Young Jung
    Scientific Reports.2023;[Epub]     CrossRef

Epidemiol Health : Epidemiology and Health