Chika Shirai
Biographic Data
| ID | 4987447 |
|---|---|
| NAME | Chika Shirai |
| GIVEN NAMES | Chika |
| FAMILY NAME | Shirai |
| SIGNATURE | SHIRAI C |
| AFFILIATIONS | Municipal Hirakata City Hospital |
| VERIFIED | No |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 3 |
| WORKS AS AUTHOR | 4 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2005 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 1 |
Change over Time in the Risk of Death among Japanese Covid-19 Cases Caused by the Omicron Variant Depending on Prevalence of Sublineages
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) in ten Japanese prefectures (14.8 million residents). Among 552,581 study subjects, we found that there were 1836 fatalities during the isolation period (up to 28 days from date of onset). The highest age-stand…
Increased Transmissibility of the Sars-CoV-2 Alpha Variant in a Japanese Population
To assess the relative transmissibility of the SARS-CoV-2 Alpha variant compared to the pre-existing SARS-CoV-2 in Japan, we performed a cross-sectional study to determine the secondary attack rate of COVID-19 in household contacts before and after the Alpha variant became dominant in Osaka. We accessed 290 household contacts whose index cases were diagnosed between 1 and 20 December 2020 (the third epidemic group), at a time when Osaka was free …
The Influence of Lifestyle on the Incidence of Dental Caries among 3-Year-Old Japanese Children
The present cohort study examined how lifestyle, household environment, and caries activity test score of Japanese children at age 1.5 years affected their dental caries incidence at age 3. Inclusion criteria were 1.5-year-old children with no dental caries. Dental examinations were performed for 33,655 children who participated in routine dental examinations at 1.5 years of age, and the exam was repeated approximately 21 months later (at age 3) …
Influences of sex-related information for STD prevention
Influences of sex-related information for STD prevention
The Influence of Lifestyle on the Incidence of Dental Caries among 3-Year-Old Japanese Children
The present cohort study examined how lifestyle, household environment, and caries activity test score of Japanese children at age 1.5 years affected their dental caries incidence at age 3. Inclusion criteria were 1.5-year-old children with no dental caries. Dental examinations were performed for 33,655 children who participated in routine dental examinations at 1.5 years of age, and the exam was repeated approximately 21 months later (at age 3) …
Increased Transmissibility of the Sars-CoV-2 Alpha Variant in a Japanese Population
To assess the relative transmissibility of the SARS-CoV-2 Alpha variant compared to the pre-existing SARS-CoV-2 in Japan, we performed a cross-sectional study to determine the secondary attack rate of COVID-19 in household contacts before and after the Alpha variant became dominant in Osaka. We accessed 290 household contacts whose index cases were diagnosed between 1 and 20 December 2020 (the third epidemic group), at a time when Osaka was free …
Change over Time in the Risk of Death among Japanese Covid-19 Cases Caused by the Omicron Variant Depending on Prevalence of Sublineages
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) in ten Japanese prefectures (14.8 million residents). Among 552,581 study subjects, we found that there were 1836 fatalities during the isolation period (up to 28 days from date of onset). The highest age-stand…
Medicine (4 works) · Demography (3 works) · Demography (3 works) · Coronavirus disease 2019 (COVID-19 (2 works) · Environmental health (2 works) · Internal Medicine (2 works) · Population (2 works) · SARS-CoV-2 and COVID-19 Research (2 works) · Advertising (1 work) · Alpha (finance (1 work)