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Funded articles
Epidemiologic investigation
Salmonellosis outbreaks linked to eggs at 2 gimbap restaurants in the Republic of Korea
Jun Suk Eun, Joohyun Han, Ji-Hyun Lim, Eunkyung Shin, Junyoung Kim, Da-Jung Ko, Jaeil Yoo, Sungil Kim, Jin Sook Kim, JungSub Park, Ji-Hyuk Park
Epidemiol Health. 2024;e2024036.   Published online March 7, 2024
DOI: https://doi.org/10.4178/epih.e2024036    [Accepted]
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  • 36 Download
AbstractAbstract PDF
Abstract
OBJECTIVES
Salmonellosis outbreaks occurred at 2 restaurants 2 days apart, and an epidemiological investigation was conducted to determine whether the outbreaks were connected.
METHODS
Case studies were conducted for both outbreaks. Stool samples were collected from individuals, and food samples were collected from the restaurants. Pulsed-field gel electrophoresis (PFGE) and whole-genome sequencing analyses were performed on outbreak-related Salmonella enterica serovar Enteritidis (Salmonella Enteritidis) isolates. Traceback investigations were also conducted for the ingredients from gimbap restaurants A and B.
RESULTS
In total, 106 people from gimbap restaurant A and 5 from gimbap restaurant B met the case definition. Salmonella Enteritidis was detected in samples from 2 food handlers, 22 patients, and 1 food (iceberg lettuce) at gimbap restaurant A and from 1 patient at gimbap restaurant B. According to PFGE, all isolates were identified as SEGX01.089. The molecular typing of all isolates showed the same pattern, and the genetic distance was close according to phylogenetic analysis. Eggs were the only food ingredient that was supplied to both gimbap restaurants.
CONCLUSIONS
The outbreaks were caused by Salmonella Enteritidis, and the source of infections was suspected to be contaminated eggs. To prevent foodborne outbreaks of Salmonella, restaurants should heat eggs sufficiently, and egg farms need to establish management systems that prevent Salmonella infections.
Summary
Original Articles
Age-specific findings on lifestyle and trajectories of cognitive function from the Korean Longitudinal Study of Aging
Seungju lim, Eunyoung Yoo, Ickpyo Hong, Ji-Hyuk Park
Epidemiol Health. 2023;45:e2023098.   Published online November 2, 2023
DOI: https://doi.org/10.4178/epih.e2023098
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AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Few longitudinal studies have explored age-related differences in the relationship between lifestyle factors and cognitive decline. This study investigated lifestyle factors at baseline that slow the longitudinal rate of cognitive decline in young-old (55-64 years), middle-old (65-74 years), and old-old (75+ years) individuals.
METHODS
We conducted an 11-year follow-up that included 6,189 older adults from the Korean Longitudinal Study of Aging, which is a cohort study of community-dwelling older Koreans. Lifestyle factors, including physical activity, social activity (SA), smoking, and alcohol consumption were assessed at baseline. Cognitive function was measured at 2-year intervals over 11 years. Latent growth modeling and multi-group analysis were performed.
RESULTS
The influence of lifestyle factors on the rate of cognitive decline differed by age. Smoking at baseline (-0.05; 95% confidence interval [CI], -0.11 to -0.00, per study wave) accelerated cognitive decline in young-old individuals, whereas frequent participation in SA at baseline (0.02; 95% CI, 0.01 to 0.03, per study wave) decelerated cognitive decline in middle-old individuals. None of the lifestyle factors in this study decelerated cognitive decline in old-old individuals.
CONCLUSIONS
Cognitive strategies based on modifiable lifestyle factors such as smoking cessation in young-old individuals and frequent SA participation in middle-old age individuals may have great potential for preventing cognitive decline. Because the influence of lifestyle factors varied by age group, age-specific approaches are recommended to promote cognitive health.
Summary
Korean summary
본 연구는 국내 노인인구를 연령대별로 구분하여 연소노인(55-64세), 중고령노인(65-74세), 고령노인(75세+)의 인지저하 기울기를 가속 혹은 감속시키는 라이프스타일 요인을 파악하였다. '흡연'은 연소노인의 인지저하를 가속, '사회활동 참여 빈도'는 중고령노인의 인지저하를 감속시키는 것으로 나타났으며, 고령노인의 경우 유의미한 변수가 나타나지 않았다. 본 결과는 노인의 인지건강에 있어 연령대별 차별화된 라이프스타일 전략이 필요할 것을 시사한다.
Key Message
This study aimed to identify lifestyle factors that accelerate or decelerate the cognitive decline slope in the older population in South Korea, categorized by age groups: young-old adults (55-64), middle-old adults (65-74), and old-old adults (75+). The findings indicated that 'smoking' accelerates cognitive decline in young-old adults, while 'frequency of social activity participation' decelerates cognitive decline in middle-old adults. However, no significant lifestyle variables were identified for old-old adults. These results suggest the necessity of differentiated lifestyle strategies based on age groups for promoting cognitive health in the older population.
Health-adjusted life expectancy according to lifestyle classified by the Yonsei Lifestyle Profile-BREF
Sanghun Nam, Kang-Hyun Park, Ji-Hyuk Park, Ickpyo Hong
Epidemiol Health. 2022;44:e2022095.   Published online October 28, 2022
DOI: https://doi.org/10.4178/epih.e2022095
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AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study aimed to investigate health-adjusted life expectancy (HALE) by demographic characteristics (sex, educational achievement, and residential area) according to the lifestyle classifications of the Yonsei Lifestyle Profile-BREF (YLP-BREF).
METHODS
This study included 569 participants aged 55 years or older living in Korea. The YLP-BREF domains were physical activity, activity participation, and nutrition.
RESULTS
Females had a longer HALE (mean±standard deviation, 8.90±5.06 years) in the physical activity domain, while males had a longer HALE in the nutrition domain (9.44±5.91 years). People living in rural areas had longer HALE in physical activity (12.02±5.60 years), activity participation (8.58±4.21 years), and nutrition (11.33±6.43 years). There were no significant differences according to sex or residential area. High school graduates showed the longest HALE (physical activity: 10.38± 6.89; activity participation: 7.64±4.29; nutrition: 9.59±6.40 years). There was a significant difference in educational achievement.
CONCLUSIONS
As people age, the demand for a healthy lifestyle increases. This study attempted to calculate HALE by demographic characteristics according to lifestyle. The results of this study will help inform future research directions for providing a healthy lifestyle.
Summary
Korean summary
본 연구는 Yonsei Lifestyle Profile-BREF(YLP-BREF)의 라이프스타일 분류에 따른 인구통계학적 특성(성별, 주거지역, 학력)에 따른 건강조정수명(Health-Adjusted Life Expectancy; HALE)을 알아보고자 하였다. 본 연구에서 사용한 자료는 한국에 거주하는 55세 이상의 569명이 포함되었으며, YLP-BREF는 신체활동, 활동참여, 영양으로 총 세 영역으로 구성되어 있다. 본 연구 결과, 성별에 따른 건강조정수명은 영양에서 9.44세로 남성이 가장 높았으며, 거주지역은 따른 건강조정수명은 신체활동 영역에서 농촌이 12.02세로 가장높았고, 학력에 따른 건강조정수명은 신체활동 영역에서 고등학교 졸업자가 10.38세로 가장 높았다. 본 연구 결과는 건강한 라이프스타일을 인구통계학적 특성에 따라 제공하기 위한 향후 연구 방향을 제시하는 데 도움이 될 것으로 사료된다.
Key Message
This study investigated Health-Adjusted Life Expectancy (HALE) according to demographic characteristics (sex, residence, educational achievement) according to lifestyle classification of Yonsei Lifestyle Profile-BREF. As a result of this study, the HALE by gender was the highest in nutrition at 9.44 years, and the HALE by residential area was the highest in physical activity at 12.02 years in rural areas, and the HALE by education was in physical activity. , high school graduates had the highest age at 10.38. The results of this study are considered to be helpful in suggesting future research directions for providing a healthy lifestyle.
Correspondence
Letter to the Editor: Analysis of Kudoa septempunctata as a cause of foodborne illness and its associated differential diagnosis
Ji-Hyuk Park
Epidemiol Health. 2017;39:e2017037.   Published online August 21, 2017
DOI: https://doi.org/10.4178/epih.e2017037
  • 10,210 View
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  • 1 Web of Science
  • 1 Crossref
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Abstract
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Citations

Citations to this article as recorded by  
  • Immune-triggering effect of the foodborne parasite Kudoa septempunctata through the C-type lectin Mincle in HT29 cells
    Ji-Hun Shin, Jung-Pyo Yang, Seung-Hwan Seo, Sang-Gyun Kim, Eun-Min Kim, Do-Won Ham, Eun-Hee Shin
    BMB Reports.2020; 53(9): 478.     CrossRef
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