Search Articles

View query in Help articles search

Search Results (1 to 7 of 7 Results)

Download search results: CSV END BibTex RIS


Triangulating Truth and Reaching Consensus on Population Size, Prevalence, and More: Modeling Study

Triangulating Truth and Reaching Consensus on Population Size, Prevalence, and More: Modeling Study

The primary goal of such a meta-analysis is to estimate the mean of the distribution of effect sizes, synthesizing the estimates of individual studies. Our goal was similar: to estimate a population quantity of interest θ which can be a population size, population proportion, incidence, among others. We aimed to synthesize several estimates yj of this quantity from different studies, where the variance σj2 of each estimate is known.

Ian E Fellows, Carl Corcoran, Anne F McIntyre

JMIR Public Health Surveill 2024;10:e48738

The Use of Cremation Data for Timely Mortality Surveillance During the COVID-19 Pandemic in Ontario, Canada: Validation Study

The Use of Cremation Data for Timely Mortality Surveillance During the COVID-19 Pandemic in Ontario, Canada: Validation Study

The standardized difference is the difference in the mean of a variable between 2 groups divided by an estimate of the standard deviation of that variable [15]; relatively low values of the standardized difference show stability in the percent cremated. Second, time lags in the completeness of cremation and vital statistics data were assessed to determine the predictive value of cremation data in estimating all-cause mortality.

Gemma Postill, Regan Murray, Andrew S Wilton, Richard A Wells, Renee Sirbu, Mark J Daley, Laura Rosella

JMIR Public Health Surveill 2022;8(2):e32426

A New Performance Metric to Estimate the Risk of Exposure to Infection in a Health Care Setting: Descriptive Study

A New Performance Metric to Estimate the Risk of Exposure to Infection in a Health Care Setting: Descriptive Study

The compliance rate, which focuses on the adherence of HCWs to HH protocols, is commonly used to estimate each individual’s HH performance [5]. However, this parameter masks the temporal and spatial aspects of HH involved in infection transmission. In this study, a novel HH performance metric is proposed to quantify the individual patient’s exposure risk to infection.

Kimia Hadian, Geoff Fernie, Atena Roshan Fekr

JMIR Form Res 2022;6(2):e32384

Estimation of COVID-19 Period Prevalence and the Undiagnosed Population in Canadian Provinces: Model-Based Analysis

Estimation of COVID-19 Period Prevalence and the Undiagnosed Population in Canadian Provinces: Model-Based Analysis

A disease progression and transmission model is used to estimate the size and composition of the COVID-19 period prevalence by integrating the results of previous seroprevalence surveys with primary provincial observed data of health events related to COVID-19 and its sequelae, including COVID-19–related deaths. From these estimates, we derive the proportion of the infected population that remained undiagnosed during this period.

Abdullah Hamadeh, Zeny Feng, Jessmyn Niergarth, William WL Wong

JMIR Public Health Surveill 2021;7(9):e26409

Estimating the COVID-19 Spread Through Real-time Population Mobility Patterns: Surveillance in Low- and Middle-Income Countries

Estimating the COVID-19 Spread Through Real-time Population Mobility Patterns: Surveillance in Low- and Middle-Income Countries

For the period between January 21 to April 15 for Latin America and the Caribbean, the cluster with the highest RR was Chile (RR 18.02; P Emerging COVID-19 space–time clusters and their RR for having more observed than expected COVID-19 cases, from January 21 to March 15 and March 31, 2020, at the country level within the Latin American, Caribbean, and African regions. a RR: relative risk estimate. b All RRs have a P value Emerging COVID-19 space–time clusters and their RR for having more observed than expected

Stefanos Tyrovolas, Iago Giné-Vázquez, Daniel Fernández, Marianthi Morena, Ai Koyanagi, Mark Janko, Josep Maria Haro, Yang Lin, Paul Lee, William Pan, Demosthenes Panagiotakos, Alex Molassiotis

J Med Internet Res 2021;23(6):e22999

Estimating the Proportion of COVID-19 Contacts Among Households Based on Individuals With Myocardial Infarction History: Cross-sectional Telephone Survey

Estimating the Proportion of COVID-19 Contacts Among Households Based on Individuals With Myocardial Infarction History: Cross-sectional Telephone Survey

Since the symptoms are now well documented in the literature [10] and the tests are more widespread, telephone surveys could also be useful to estimate symptomatic and asymptomatic COVID-19 contacts. Moreover, the most severe forms of COVID-19 and the overall risk of all-cause mortality were disproportionately associated with older adults because of age and pre-existing conditions [11-14].

Laurie Fraticelli, Julie Freyssenge, Clément Claustre, Mikaël Martinez, Abdesslam Redjaline, Patrice Serre, Thomas Bochaton, Carlos El Khoury

JMIR Form Res 2021;5(4):e26955

Adaptive Susceptible-Infectious-Removed Model for Continuous Estimation of the COVID-19 Infection Rate and Reproduction Number in the United States: Modeling Study

Adaptive Susceptible-Infectious-Removed Model for Continuous Estimation of the COVID-19 Infection Rate and Reproduction Number in the United States: Modeling Study

A continuous Rt estimate is then obtained using the infection rate estimate. The SIR model is described as a system of differential equations, and the key idea in our proposed method is that the initial conditions for each window are considered as values estimated for the previous window. The only additional hyperparameter is the length of the sliding window.

Mark B Shapiro, Fazle Karim, Guido Muscioni, Abel Saju Augustine

J Med Internet Res 2021;23(4):e24389