- Estimating Influenza-associated Mortality in Korea: The 2009-2016 Seasons
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Kwan Hong, Sangho Sohn, Byung Chul Chun
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J Prev Med Public Health. 2019;52(5):308-315. Published online August 23, 2019
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DOI: https://doi.org/10.3961/jpmph.19.156
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 Abstract
Summary
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- Objectives
Estimating influenza-associated mortality is important since seasonal influenza affects persons of all ages, causing severe illness or death. This study aimed to estimate influenza-associated mortality, considering both periodic changes and age-specific mortality by influenza subtypes.
Methods
Using the Microdata Integrated Service from Statistics Korea, we collected weekly mortality data including cause of death. Laboratory surveillance data of respiratory viruses from 2009 to 2016 were obtained from the Korea Centers for Disease Control and Prevention. After adjusting for the annual age-specific population size, we used a negative binomial regression model by age group and influenza subtype.
Results
Overall, 1 859 890 deaths were observed and the average rate of influenza virus positivity was 14.7% (standard deviation [SD], 5.8), with the following subtype distribution: A(H1N1), 5.0% (SD, 5.8); A(H3N2), 4.4% (SD, 3.4); and B, 5.3% (SD, 3.7). As a result, among individuals under 65 years old, 6774 (0.51%) all-cause deaths, 2521 (3.05%) respiratory or circulatory deaths, and 1048 (18.23%) influenza or pneumonia deaths were estimated. Among those 65 years of age or older, 30 414 (2.27%) all-cause deaths, 16 411 (3.42%) respiratory or circulatory deaths, and 4906 (6.87%) influenza or pneumonia deaths were estimated. Influenza A(H3N2) virus was the major contributor to influenza-associated all-cause and respiratory or circulatory deaths in both age groups. However, influenza A(H1N1) virus–associated influenza or pneumonia deaths were more common in those under 65 years old.
Conclusions
Influenza-associated mortality was substantial during this period, especially in the elderly. By subtype, influenza A(H3N2) virus made the largest contribution to influenza-associated mortality.
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Summary
Korean summary
계절 인플루엔자는 심각한 호흡기 합병증으로 진행할 수 있어 질병 부담의 추산이 중요한 질병이다. 현재까지는 연령별, 인플루엔자 연관 사망을 정확하게 추산하기 어려웠으나, 본 연구에서는 이를 추산하기 위해 고안된 다양한 방법 중 음이항 회귀 분석을 이용하여 2009년부터 2016년간 인플루엔자 아형별 연관 사망을 추산하였다. 그 결과, 전체 사망자 중 65세 미만에서 약 6,774명, 65세 이상에서 약 30,414명의 연간 인플루엔자 사망이 추산되었고, 이는 특히 인플루엔자 아형 중 전체 연령에서 A(H3N2) 연관 사망이 가장 많은 비율을 차지했다.
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Citations
Citations to this article as recorded by  - Influenza vaccination before and during the COVID-19 pandemic in the elderly in South Korea
Dong Jun Kim, Kyoung Hee Cho, Seongju Kim, Hooyeon Lee
Journal of Infection and Public Health.2024; 17(3): 503. CrossRef - An 8-Year Prospective, Observational, Multi-centre Post-Marketing Safety Surveillance Study Conducted in South Korea (2014–2022) Following the Introduction of GSK’s Inactivated Quadrivalent Seasonal Influenza Vaccine (Fluarix Tetra) for Subjects Aged 6 Mo
Gaël Dos Santos, Raghavendra Devadiga, Chun Soo Kim, Joon Bang
Drug Safety.2024; 47(4): 365. CrossRef - Influenza disease burden and the need for highly immunogenic vaccines
in older adults: a narrative review
Joon Young Song
The Ewha Medical Journal.2024;[Epub] CrossRef - Influenza B virus: Target and acting mechanism of antiviral drugs
Jicheng Han, Chunhui Yang, Yan Xiao, Jingjing Li, Ningyi Jin, Yiquan Li
Microbial Pathogenesis.2024; 197: 107051. CrossRef - Incidence, Severity, and Mortality of Influenza During 2010–2020 in Korea: A Nationwide Study Based on the Population-Based National Health Insurance Service Database
Soo-Hee Hwang, Hyejin Lee, Myunghoo Jung, Sang-Hyun Kim, Ho Kyung Sung, Myoung-don Oh, Jin Yong Lee
Journal of Korean Medical Science.2023;[Epub] CrossRef - Impact of the COVID-19 Pandemic on Influenza Vaccination and Associated Factors among Pregnant Women: A Cross-Sectional Study in Korea
Boyeon Kim, Eunyoung Kim
Vaccines.2023; 11(3): 512. CrossRef - Influenza Vaccination Rate and Related Factors in Korean Adults During the Coronavirus Disease 2019 Epidemic
Kyung Wan Kwon, Ka Hyeon Bae, Jeong Hwan Park, Tae Oh Kim, Jin Young Kim, Seung Min Baek, Sang Hyun Park, Ju Young Lee, Bo Hyun Park, Mi Ah Han
Asia Pacific Journal of Public Health.2023; 35(2-3): 217. CrossRef - Post-Marketing Safety Surveillance of Quadrivalent Influenza Vaccine (VaxigripTetra) in Children Aged 6 to 35 Months in South Korea
Sunho Choe, Oxana Talanova, Sooyoun Shin, Olga Syrkina, Marion Fournier
Infectious Diseases and Therapy.2023; 12(6): 1715. CrossRef - All-Cause and Cause-Specific Mortality Attributable to Seasonal Influenza: A Nationwide Matched Cohort Study
Heeseon Jang, Jaelim Cho, Seong-Kyung Cho, Donghan Lee, Sung-il Cho, Sang-Baek Koh, Dong-Chun Shin, Changsoo Kim
Journal of Korean Medical Science.2023;[Epub] CrossRef - Global trends of seasonal influenza-associated mortality in 2001–2018: A longitudinal epidemiological study
Hideharu Hagiya, Yuka Osaki, Michio Yamamoto, Takahiro Niimura, Ko Harada, Tsukasa Higashionna, Hirofumi Hamano, Yoshito Zamami, Shiro Hinotsu, Toshihiro Koyama
Journal of Infection.2023; 87(3): e54. CrossRef - Analysis of the effectiveness of non-pharmaceutical interventions on influenza during the Coronavirus disease 2019 pandemic by time-series forecasting
Hyun Kyung Kim, Kyung-Duk Min, Sung-il Cho
BMC Infectious Diseases.2023;[Epub] CrossRef - Systematic review of influenza vaccine effectiveness against laboratory-confirmed influenza among older adults living in aged care facilities
Aye Moa, Mohana Kunasekaran, Zubair Akhtar, Valentina Costantino, C. Raina MacIntyre
Human Vaccines & Immunotherapeutics.2023;[Epub] CrossRef - The Influence of Gaseous Pollutants Concentration on Influenza Outbreak Risk
晓璐 马
Open Journal of Natural Science.2023; 11(06): 1003. CrossRef - The impact of free vaccination policies under the Korean Influenza National Immunization Program: Trends in influenza vaccination rates in South Korea from 2010 to 2019
Jeongmin Seo, Juwon Lim, Dong Keon Yon
PLOS ONE.2022; 17(1): e0262594. CrossRef - Post-marketing Surveillance of a Quadrivalent Influenza Vaccine (Vaxigrip Tetra) in South Korea
Sookyung Lim, Xiaoling Li, Olga Syrkina, Marion Fournier
Infectious Diseases and Therapy.2022; 11(5): 2035. CrossRef - Novel respiratory infectious diseases in Korea
Hyun Jung Kim
Yeungnam University Journal of Medicine.2020; 37(4): 286. CrossRef
- ‘Pneumonia Weather’: Short-term Effects of Meteorological Factors on Emergency Room Visits Due to Pneumonia in Seoul, Korea
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Sangho Sohn, Wonju Cho, Jin A Kim, Alaa Altaluoni, Kwan Hong, Byung Chul Chun
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J Prev Med Public Health. 2019;52(2):82-91. Published online February 11, 2019
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DOI: https://doi.org/10.3961/jpmph.18.232
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7,437
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218
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18
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Abstract
Summary
PDF
- Objectives
Many studies have explored the relationship between short-term weather and its health effects (including pneumonia) based on mortality, although both morbidity and mortality pose a substantial burden. In this study, the authors aimed to describe the influence of meteorological factors on the number of emergency room (ER) visits due to pneumonia in Seoul, Korea.
Methods
Daily records of ER visits for pneumonia over a 6-year period (2009-2014) were collected from the National Emergency Department Information System. Corresponding meteorological data were obtained from the National Climate Data Service System. A generalized additive model was used to analyze the effects. The percent change in the relative risk of certain meteorological variables, including pneumonia temperature (defined as the change in average temperature from one day to the next), were estimated for specific age groups.
Results
A total of 217 776 ER visits for pneumonia were identified. The additional risk associated with a 1°C increase in pneumonia temperature above the threshold of 6°C was 1.89 (95% confidence interval [CI], 1.37 to 2.61). Average temperature and diurnal temperature range, representing within-day temperature variance, showed protective effects of 0.07 (95% CI, 0.92 to 0.93) and 0.04 (95% CI, 0.94 to 0.98), respectively. However, in the elderly (65+ years), the effect of pneumonia temperature was inconclusive, and the directionality of the effects of average temperature and diurnal temperature range differed.
Conclusions
The term ‘pneumonia temperature’ is valid. Pneumonia temperature was associated with an increased risk of ER visits for pneumonia, while warm average temperatures and large diurnal temperature ranges showed protective effects.
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Summary
Korean summary
본 연구에서는 기온 등 다양한 기상요인의 건강영향을 나타내는 표현 중 하나로 알려진 'pneumonia weather'가 역학적으로 가진 의미를 파악하고자 하였다. 이를 위해 국가응급진료정보망의 폐렴 진료기록과 기상자료개방포털 일기자료를 일반화가법모형을 이용해 분석하였다. 그 결과 pneumonia weather는 연속된 양일간 평균기온의 차이를 의미하며, 일정 수준 이상의 일간 기온차는 단기간 이후 폐렴으로 인한 응급실 내원 위험을 증가시킨다는 사실을 확인하였다.
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Citations
Citations to this article as recorded by - Impact of ambient temperature on respiratory disease: a case-crossover study in Seoul
Hyewon Lee, Hee-Young Yoon
Respiratory Research.2024;[Epub] CrossRef - Extreme temperatures increase the risk of pediatric pneumonia: a systematic review and meta-analysis
Firdian Makrufardi, Rina Triasih, Nurnaningsih Nurnaningsih, Kian Fan Chung, Sheng-Chieh Lin, Hsiao-Chi Chuang
Frontiers in Pediatrics.2024;[Epub] CrossRef - Relative Humidity Affects Acute Otitis Media Visits of Preschool Children to the Emergency Department
Ying-Fang Jiang, Wen-Wei Luo, Xin Zhang, Dong-Dong Ren, Yi-Bo Huang
Ear, Nose & Throat Journal.2023; 102(7): 467. CrossRef - Effects of intrauterine and postnatal exposure to meteorological factors on childhood pneumonia
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Building and Environment.2023; 244: 110800. CrossRef - Combined effect of preconceptional and prenatal exposure to air pollution and temperature on childhood pneumonia: A case-control study
Wenhui Yang, McSherry Brownel Johnson, Hongsen Liao, Zijing Liu, Xiangrong Zheng, Chan Lu
Environmental Research.2023; 216: 114806. CrossRef - Risk Factors for Respiratory Viral Infections: A Spotlight on Climate Change and Air Pollution
Allison J Burbank
Journal of Asthma and Allergy.2023; Volume 16: 183. CrossRef - Climate change impacts on children's respiratory health
Olivia Kline, Mary Prunicki
Current Opinion in Pediatrics.2023; 35(3): 350. CrossRef - Single‐day and cumulative effects of ambient particulate matter exposure on emergency department visits for respiratory disease in South Korea
Hakjung Kim, Woosung Yu
Hong Kong Journal of Emergency Medicine.2022; 29(1): 17. CrossRef - A Machine Learning-Based Study of the Effects of Air Pollution and Weather in Respiratory Disease Patients Visiting Emergency Departments
Eu Sun Lee, Jung-Youn Kim, Young-Hoon Yoon, Seoung Bum Kim, Hyungu Kahng, Jinhyeok Park, Jaehoon Kim, Minjae Lee, Haeun Hwang, Sung Joon Park, Yan-Ren Lin
Emergency Medicine International.2022; 2022: 1. CrossRef - Impact of the COVID-19 pandemic on changes in temperature-sensitive cardiovascular and respiratory disease mortality in Japan
Yukitaka Ohashi, Yuya Takane, Ko Nakajima, Ka Chun Chong
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Xiaoning Lei, Lijuan Liu, Renjie Chen, Cong Liu, Jianguo Hong, Lanfang Cao, Yanming Lu, Xiaoyan Dong, Xinchang Chen, Xiangwei Qiu, Min Xia, Bo Ding, Liling Qian, Libo Wang, Wenhao Zhou, Yonghao Gui, Haidong Kan, Yufeng Zhou, Xiaobo Zhang
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Hugo Pedder, Thandi Kapwata, Guy Howard, Rajen N. Naidoo, Zamantimande Kunene, Richard W. Morris, Angela Mathee, Caradee Y. Wright
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Bramantono Bramantono, Brian Eka Rachman, Erika Marfiani, Neneng Dewi Kurniati, Muhammad Vitanata Arifijanto, Tuksin Jearanaiwitayakul
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