Cyrus Ghaznavi

Cyrus Ghaznavi
Washington University in St. Louis | WUSTL , Wash U

Bachelor of Arts

About

36
Publications
10,330
Reads
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338
Citations
Citations since 2017
36 Research Items
337 Citations
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2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
Education
August 2018 - May 2023

Publications

Publications (36)
Article
Full-text available
We aimed to estimate the impact of social isolation on cognitive function and mental health among older adults during the two-year-and-a-half COVID-19 period. Pubmed Central, Medline, CINAHL Plus and PsychINFO were searched between March 1, 2020, and September 30, 2022. We included all studies that assessed proportions of older adults with the mean...
Article
Full-text available
Background: individual preventive behaviors are one of the key measures needed to prevent the spread of COVID-19. This study sought to identify the factors associated with the adoption of COVID-19 preventive measures, focusing specifically on information sources. Methods: we conducted a nationally representative cross-sectional survey of 30,053...
Article
Full-text available
Reducing sodium content in foods is an important public health measure to reduce salt intake and decrease the incidence of noncommunicable diseases, such as cardiovascular disease and chronic kidney disease. This study quantified the amount of salt intake that could potentially be reduced by using umami substances, including glutamate, inosinate, a...
Article
Full-text available
Background The Tokyo 2020 Summer Olympic Games (23 July–8 August 2021) were held in the middle of Japan’s fifth wave of COVID-19, when the number of cases was on the rise, and coincided with the fourth state of emergency implemented by the host city, Tokyo. Aim This study aimed to assess whether the hosting of the Games was associated with a chang...
Preprint
Full-text available
Background Globally, women suffer more from healthcare inequalities, which might be the factor causing excess mortality in all periods of life. Though Bangladesh has achieved excellent progress in providing health care, the country still has some critical challenges that need immediate attention. The objective of this study is to examine the associ...
Article
Introduction During the COVID-19 pandemic, the incidence of many droplet-transmitted infections decreased due to increased mask-wearing and social distancing. Contrastingly, there has been concern that COVID-19 countermeasures, such as lockdowns, may increase legionellosis incidence via water stagnation. During the pandemic in Japan, four state of...
Article
Full-text available
Excess deaths, including all-causes mortality, were confirmed for the first time in Japan in April 2021. However, little is known about the indirect effects of COVID-19 on the number of non-COVID-19-related deaths. We then estimated the excess deaths from non-COVID-19-related causes in Japan and its 47 prefectures from January 2020 through May 2021...
Article
Full-text available
The COVID-19 pandemic has disrupted health care access around the world, both for inpatients and outpatients. We applied a quasi-Poisson regression to national, monthly data on the number of outpatients, number of inpatients, length of average hospital stay, and the number of new hospitalizations from March 2015 to October 2021 to assess how these...
Article
Background Increases in human mobility have been linked to rises in COVID-19 transmission. The pandemic era in Japan has been characterized by changes in inter-prefectural mobility across state of emergency declarations (SOE) and travel campaigns, but they have yet to be characterized.Methods Using Yahoo Japan mobility data extracted from the smart...
Article
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Background Vaccine hesitancy is a global public health threat. We present unique data that characterises those who experienced reversals of COVID-19 vaccination hesitancy in Japan. Methods We administered a questionnaire on vaccination intention among 30053 Japanese adults aged 20 years or older before the COVID-19 vaccination was available to the...
Article
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Background Research characterizing changes of heart with respect to vaccine intention is scarce, and very little research considers those who were initially vaccine willing but became hesitant. Here, we sought to assess the factors related to reversals of vaccine willingness. Methods We conducted a longitudinal, national survey on vaccination inte...
Article
Full-text available
Beginning in April 2020, social distancing measures were implemented to mitigate the COVID-19 pandemic in Japan. We assessed whether traffic accident rates had decreased from April 2020 to December 2021 as compared with previous years. The analysis included 2,934,477 traffic accidents, and the trend of decreasing rates of traffic accidents in recen...
Article
Full-text available
The year 2020 marked an important turning point in Japan's global health policy. While the global health community has been suffering serious damage to sustainable health financing due to the COVID-19 pandemic, an independent commission on Japan's Strategy on Development Assistance for Health (DAH) launched an ambitious policy recommendation to dou...
Article
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Immigrants in Japan face multiple health care challenges. There is limited research addressing how all-cause mortality differs between foreign residents and Japanese citizens, including the impact of the COVID-19 pandemic. We assessed whether all-cause mortality rates between Japanese citizens and foreign residents living in Japan differ, and wheth...
Article
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Introduction: Marriage, divorce and fertility are declining in Japan. There is concern that the COVID-19 pandemic may have accelerated the decrease in marriages and births while increasing the number of divorces. Changes in partnership behaviours and fertility have significant implications for mental health, well-being and population demographics....
Article
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Background While fertility rates have decreased during the second half of the 20th century in Japan, little is known regarding trends in the number of children that men and women have across birth cohorts and whether these differ by education and income.Methods We used data from four rounds of the National Fertility Survey (1992, 2005, 2010 and 201...
Article
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Objectives: The COVID-19 pandemic has had variable effects on the rates of STIs reported across the globe. This study sought to assess how the number of STI reports changed during the pandemic in Japan. Methods: We used national infectious disease surveillance data from the National Institute of Infectious Diseases (Tokyo, Japan) for the period...
Article
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Understanding COVID-19 risk perception may help inform public health messaging aimed at encouraging preventive measures and improving countermeasures against the pandemic. We conducted an online survey of 29,708 Japanese adults in February 2021 and estimated the associations between COVID-19 risk perception and a broad array of individual factors....
Article
Background: A large proportion of adults in Japan remain unmarried even though they intend to marry during their lifetime. To provide data for policy makers and those searching for partners in the Japanese marriage market, we estimated the number and characteristics of unmarried women and men with marriage intention and assessed their partner pref...
Article
No abstract available for this article. This article is protected by copyright. All rights reserved
Article
Full-text available
In 2000, the Japanese government launched the National Health Promotion Movement known as Health Japan 21 (HJ21), a 13-year national health promotion policy (2000−2012) aimed at preventing and controlling non-communi-cable diseases (NCDs) and their underlying risk factors. After the revision in 2013 (2013−2023), the target NCDs and risk factors are...
Article
The COVID-19 pandemic disrupted medical education worldwide, leading medical students to organize response initiatives. This paper summarizes the Washington University Medical Student COVID-19 Response (WUMS-CR) and shares lessons to guide future initiatives. We used a three-principle framework of community needs assessment, faculty mentorship, and...
Article
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Importance: There are concerns that suicide rates may have increased during the coronavirus disease 2019 (COVID-19) pandemic. Objective: To assess whether suicide rates in Japan increased in April through November 2020 compared with previous years. Design, setting, and participants: This cross-sectional study used national data obtained from t...
Article
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Background It has been suggested that an increasing proportion of young adults in Japan have lost interest in romantic relationships, a phenomenon termed “herbivorization”. We assessed trends in heterosexual relationship status and self-reported interest in heterosexual romantic relationships in nationally representative data. Methods We used data...
Article
Full-text available
Here, we report our studies of immune-mediated regulation of Zika virus (ZIKV), herpes simplex virus 1 (HSV-1), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in the human cornea. We find that ZIKV can be transmitted via corneal transplantation in mice. However, in human corneal explants, we report that ZIKV does not rep...
Article
Full-text available
Importance Sexual relationships are important for well-being and health. Recent trends in sexual activity among US adults are unknown. Objectives To examine trends in reported frequency of sexual activity and number of sexual partners by sex and age and the association between measures of sexual activity and sociodemographic variables. Design, Se...
Article
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背景 日本は、世界で最も出生率が低い国の一つである。その理由として成人における性交渉未経験の人の割合が増えていることが示唆されているものの、国民全体を代表するデータでの調査研究はこれまでのところ行われていない。 方法 我々は1987年から2015年の間に実施された合計7回分の出生動向基本調査のデータを用いた。この調査では、18 – 39歳の成人を対象としており(1987年の調査のみ18 – 34歳が対象)、サンプルサイズは11,553 –17,850[1987 – 2010年]、回答率は70.0 – 92.5%であった。各回の調査において、我々は性別・年齢グループ別の年齢調整異性間性交渉未経験割合を算出した(異性間性交渉の定義は、異性との性交渉経験の有無に関する回 答とした)。我々は、2...
Article
Full-text available
Background: It has been suggested that an increasing number of Japanese adults remain sexually inexperienced; however, no study has assessed this issue using nationally representative data. Methods: We used data from seven rounds of the National Fertility Survey of Japan, 1987-2015, and included adults aged 18-39 years (18-34 years in the 1987 surv...

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