Fujiko Irie
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Effectiveness of the Facility for Elderly Surveillance System (FESSy) in Two Public Health Center Jurisdictions in Japan: Prospective Observational Study Open
Background Residents of facilities for older people are vulnerable to COVID-19 outbreaks. Nevertheless, timely recognition of outbreaks at facilities for older people at public health centers has been impossible in Japan since May 8, 2023,…
Risk of Death in Older Japanese Adults with COVID-19 Caused by the Omicron Variant: a Population-Based Study Open
We assessed case fatality rates (CFRs) in adults aged ≥70 years in 10 prefectures in Japan (14.8 million residents) diagnosed between January 2022 and March 2023, when the Omicron variant was dominant in Japan. We selected incident reports…
Particulate Matter and Incident Chronic Kidney Disease in Japan: The Ibaraki Prefectural Health Study (IPHS) Open
Elevated PM2.5 did not represent a significant risk factor for incident CKD in a prefecture in Japan.
Factors Associated with Non-attendance at a Follow-up Visit for Dyslipidemia Identified at Health Checkups: A Retrospective Cohort Study in a Japanese Prefecture Open
Systems that inform high-risk populations of non-attendance and encourage follow-up visits are warranted.
Change over Time in the Risk of Death among Japanese COVID-19 Cases Caused by the Omicron Variant Depending on Prevalence of Sublineages Open
To assess temporal changes to the risk of death in COVID-19 cases caused by the Omicron variant, we calculated age-standardized case fatality rates (CFR) in patients aged ≥40 years over nine diagnostic periods (3 January to 28 August 2022)…
A low proportion of asymptomatic COVID-19 patients with the Delta variant infection by viral transmission through household contact at the time of confirmation in Ibaraki, Japan Open
We conducted a study to investigate the proportion of patients with asymptomatic coronavirus disease 2019 (COVID-19) infected with the Delta variant compared with those infected with the wild-type strain at the time of confirmation. A tota…
Shorter Incubation Period among Unvaccinated Delta Variant Coronavirus Disease 2019 Patients in Japan Open
Few studies have assessed incubation periods of the severe acute respiratory syndrome coronavirus 2 Delta variant. This study aimed to elucidate the transmission dynamics, especially the incubation period, for the Delta variant compared wi…
View article: Prediction of Lifetime Risk of Cardiovascular Disease Deaths Stratified by Sex in the Japanese Population
Prediction of Lifetime Risk of Cardiovascular Disease Deaths Stratified by Sex in the Japanese Population Open
Background Lifetime risk is an informative estimate for driving lifestyle and behavioral changes especially for young adults. The impact of composite risk factors for cardiovascular disease on lifetime risk stratified by sex has not been i…
View article: Breastfeeding in Infancy in Relation to Subsequent Physical Size: A 20-year Follow-up of the Ibaraki Children’s Cohort Study (IBACHIL)
Breastfeeding in Infancy in Relation to Subsequent Physical Size: A 20-year Follow-up of the Ibaraki Children’s Cohort Study (IBACHIL) Open
Breastfeeding may prevent overweight in childhood, but its impact is not significant in adolescence and adulthood.
Diabetes Mellitus Modifies the Association of Serum Triglycerides with Ischemic Cardiovascular Disease Mortality: The Ibaraki Prefectural Health Study (IPHS) Open
Aim: Diabetes mellitus and hypertriglyceridemia may adversely interact with the development of ischemic cardiovascular disease, but epidemiological evidence on this issue is scarce. We hypothesized that the impact of hypertriglyceridemia o…
Secondary Attack Rate among Non-Spousal Household Contacts of Coronavirus Disease 2019 in Tsuchiura, Japan, August 2020–February 2021 Open
Household secondary attack rate (HSAR) by risk factor might have a higher transmission rate between spouses. We investigated risk factors for the HSAR among non-spousal household contacts of patients with coronavirus disease 2019 (COVID-19…
Impact of Proteinuria and Low eGFR on Lifetime Risk of Cardiovascular Disease Death: A Pooled Analysis of Data From the Evidence for Cardiovascular Prevention From Observational Cohorts in Japan Study Open
Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): H20–Junkankitou [Seishuu]–Ippan–013; H23–Junkankitou [Seishuu]–Ippan–005; H26-Junkankitou [Seisaku]-Ippan-001; H29–Junkankito…
View article: Long-Term Exposure to Particulate Matter and Mortality from Cardiovascular Diseases in Japan: The Ibaraki Prefectural Health Study (IPHS)
Long-Term Exposure to Particulate Matter and Mortality from Cardiovascular Diseases in Japan: The Ibaraki Prefectural Health Study (IPHS) Open
Our results suggest that long-term exposure to SPM is associated with an increased risk of all cardiovascular mortality for men in Ibaraki, Japan.
Atrial Fibrillation With and Without Cardiovascular Risk Factors and Stroke Mortality Open
AF was found to be an independent risk factor for stroke and total cardiovascular mortality even in individuals without other TCVRFs.
A Combination of Blood Pressure and Total Cholesterol Increases the Lifetime Risk of Coronary Heart Disease Mortality: EPOCH–JAPAN Open
High total cholesterol levels contributed to an elevated LTR of CHD mortality in hypertensive individuals. These findings could help guide high-risk young individuals toward initiating lifestyle changes or treatments.
Association of Diabetes With All-Cause and Cause-Specific Mortality in Asia Open
This study found that diabetes was associated with increased risk of death from several diseases among Asian populations. Development and implementation of diabetes management programs are urgently needed to reduce the burden of diabetes i…
Tobacco Smoking and Mortality in Asia Open
In this study, mortality associated with tobacco smoking continued to increase among Asian men in recent birth cohorts, indicating that tobacco smoking will remain a major public health problem in most Asian countries in the coming decades…
View article: High Hematocrit Levels Are Associated with Risk of Cardiovascular Mortality among Middle-Aged Japanese Women: The Ibaraki Prefectural Health Study (IPHS)
High Hematocrit Levels Are Associated with Risk of Cardiovascular Mortality among Middle-Aged Japanese Women: The Ibaraki Prefectural Health Study (IPHS) Open
In Japan, heart disease and cerebrovascular disease were the second and fourth leading cause of death, respectively in 2014. Hematocrit, the ratio of the red blood cells to the total volume of blood is known to play a role in cardiovascula…
Evaluation of an ad hoc paper-based syndromic surveillance system in Ibaraki evacuation centres following the 2011 Great East Japan Earthquake and Tsunami Open
Outbreaks of infectious diseases can occur after natural disasters as vital services are disrupted and populations move into evacuation centres. National notifiable disease surveillance may be inadequate in these situations because of reso…
Impact of Speed-Eating Habit on Subsequent Body Mass Index and Blood Pressure Among Schoolchildren ― The Ibaraki Children’s Cohort Study (IBACHIL) ― Open
Habitualspeed eating was positively associated with subsequent BMI among boys and girls as well as with systolic BP among boys.
Impact and attribute of each obesity-related cardiovascular risk factor in combination with abdominal obesity on total health expenditures in adult Japanese National Health insurance beneficiaries: The Ibaraki Prefectural health study Open
Of the obesity-related cardiovascular risk factors, hypertension, independent of AO, appears to impose the greatest burden on Japanese health expenditures.
Relationship between Estimated Glomerular Filtration Rate and Cardiovascular Mortality in a Japanese Cohort with Long-Term Follow-Up Open
We demonstrated proportionate increases in mortality with decreasing eGFR in a Japanese CKD population. Like patients in the CKD G3b subgroup, non-elderly men and women with an eGFR of 45-49 ml/min/1.73 m2 (i.e. a part of CKD G3a) are at c…
Prognostic Impact of Supraventricular Arrhythmias : From the Ibaraki Prefectural Health Study (IPHS) Open
【目的】一般住民における上室期外収縮の長期予後については，いまだ不明である．本研究の目的は，一般住民健診における上室期外収縮の診断的意義を調べることである．【方法と結果】われわれは1993年の年次一般住民健診を受診し，2008年まで経過を追えた63,197名（平均年齢58.8±9.9歳，67.6％女性）を解析した．一次エンドポイントは平均14年のフォローアップ期間中の脳卒中死亡，心血管死亡，または全死亡，二次エンドポイントは心疾患あるいは心房細動（AF）のない解析対象者にお…
A Epidemiological Investigation of a Nosocomial Outbreak of Multidrug-Resistant <i>Acinetobacter baumannii</i> in a Critical Care Center in Japan, 2011–2012 Open
Volume 69, no. 2, p. 143-148, 2016. Page 143, Title should appear as shown below.An Epidemiological Investigation of a Nosocomial Outbreak of Multidrug-Resistant Acinetobacter baumannii in a Critical Care Center in Japan, 2011-2012.