scholarly journals Revisiting the epidemiology of pertussis in Canada, 1924–2015: a literature review, evidence synthesis, and modeling study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Edward Thommes ◽  
Jianhong Wu ◽  
Yanyu Xiao ◽  
Antigona Tomovici ◽  
Jason Lee ◽  
...  

Abstract Background Disease surveillance is central to the public health understanding of pertussis epidemiology. In Canada, public reporting practices have significantly changed over time, creating challenges in accurately characterizing pertussis epidemiology. Debate has emerged over whether pertussis resurged after the introduction of adsorbed pertussis vaccines (1981–1985), and if the incidence fell to its pre-1985 after the introduction of acellular pertussis vaccines (1997–1998). Here, we aim to assemble a unified picture of pertussis disease incidence in Canada. Methods Using publicly available pertussis surveillance reports, we collected, analyzed and presented Canadian pertussis data for the period (1924–2015), encompassing the pre-vaccine era, introduction of vaccine, changes to vaccine technology, and the introduction of booster doses. Information on age began to be reported since 1952, but age reporting practices (full, partial or no ages) have evolved over time, and varied across provinces/territories. For those cases reported without age each year, we impute an age distribution by assuming it follows that of the age-reported cases. Results Below the age of 20 years, the adjusted age-specific incidence from 1969 to 1988 is substantially higher than existing estimates. In children < 1 year, the incidence in some years was comparable to that during the 1988–1999 resurgence. Conclusions The results presented here suggest that the surge in the average yearly incidence of pertussis that began in 1988 was weaker than previously inferred, and in contrary to the past findings, below age 5, the average yearly incidence of pertussis from 1999 to 2015 (when the incidence dropped again) has been lower than it was from 1969 to 1988.

2021 ◽  
pp. 003335492110267
Author(s):  
Kiersten J. Kugeler ◽  
Paul S. Mead ◽  
Amy M. Schwartz ◽  
Alison F. Hinckley

Lyme disease is the most common vector-borne disease in the United States and is characterized by a bimodal age distribution and male predominance. We examined trends in reported cases during a 25-year period to describe changes in the populations most affected by Lyme disease in the United States. We examined demographic characteristics of people with confirmed cases of Lyme disease reported to the Centers for Disease Control and Prevention during 1992-2016 through the National Notifiable Diseases Surveillance System. We grouped cases into 5-year periods (1992-1996, 1997-2001, 2002-2006, 2007-2011, 2012-2016). We calculated the average annual incidence by age and sex and used incidence rate ratios (IRRs) to describe changes in Lyme disease incidence by age and sex over time. We converted patient age at time of illness into patient birth year to ascertain disease patterns according to birth cohorts. The incidence of Lyme disease in the United States doubled from 1992-1996 to 2012-2016 (IRR = 1.74; 95% CI, 1.70-1.78) and increased disproportionately among males; IRRs were 39%-89% higher among males than among females for most age groups. During the study period, children aged 5-9 years were most frequently and consistently affected. In contrast, the average age of adults with Lyme disease increased over time; of all adults, people born during 1950-1964 were the most affected by Lyme disease. Our findings suggest that age-related behaviors and susceptibilities may drive infections among children, and the shifting peak among adults likely reflects a probability proportional to the relative size of the baby boom population. These findings can inform targeted and efficient public health education and intervention efforts.


2019 ◽  
Vol 39 (6/7) ◽  
pp. 216-224 ◽  
Author(s):  
Naomi C. Hamm ◽  
Louise Pelletier ◽  
Joellyn Ellison ◽  
Lana Tennenhouse ◽  
Kim Reimer ◽  
...  

Introduction The Public Health Agency of Canada’s Canadian Chronic Disease Surveillance System (CCDSS) produces population-based estimates of chronic disease prevalence and incidence using administrative health data. Our aim was to assess trends in incidence rates over time, trends are essential to understand changes in population risk and to inform policy development. Methods Incident cases of diagnosed asthma, chronic obstructive pulmonary disease (COPD), diabetes, hypertension, ischemic heart disease (IHD), and stroke were obtained from the CCDSS online infobase for 1999 to 2012. Trends in national and regional incidence estimates were tested using a negative binomial regression model with year as a linear predictor. Subsequently, models with year as a restricted cubic spline were used to test for departures from linearity using the likelihood ratio test. Age and sex were covariates in all models. Results Based on the models with year as a linear predictor, national incidence rates were estimated to have decreased over time for all diseases, except diabetes; regional incidence rates for most diseases and regions were also estimated to have decreased. However, likelihood ratio tests revealed statistically significant departures from a linear year effect for many diseases and regions, particularly for hypertension. Conclusion Chronic disease incidence estimates based on CCDSS data are decreasing over time, but not at a constant rate. Further investigations are needed to assess if this decrease is associated with changes in health status, data quality, or physician practices. As well, population characteristics that may influence changing incidence trends also require exploration.


2020 ◽  
Author(s):  
Maria Ganczak ◽  
Oskar Pasek ◽  
Łukasz Duda-Duma ◽  
Dawid Świstara ◽  
Marcin Korzeń

Abstract Background: Face masks play an important role in protection from acquiring SARS-Cov-2, however, if used incorrectly they may increase transmission risk. Many countries, including Poland, currently recommend the use of masks in their pandemic control plans. The study objective was to assess the practices of the public in the case of face masks/N95 respirators utilization during the SARS-Cov-2 pandemic in Poland and to evaluate factors influencing their use.Methods: This non-participatory covert observational study was conducted on 3 separate occasions, (10.05/18.05/25.05.2020). At each point, 82 medical students observed 10 consecutive individuals (2460 total) appearing in the public space in 13 Polish regions which differed regarding SARS-Cov-2 pandemic risk. A structured observation checklist served as a survey tool.Results: A total of 2353 observations were included; the female/male ratio was similar (1.02-1.13-1.03 respectively) at the 3 occasions, as well as the age distribution, with those aged 21-60 years predominant (70.8%-71.9%-70.2% respectively). Most of participants (73.6%; 552/750) were using facial masks at the first time point, which decreased in the 2nd and 3rd week (544/818; 66.5% and 516/785; 65.7% respectively). A predominance of cloth masks was observed at all time points (64.7%-62.3%-62.6% respectively) followed by medical masks (23.4%-28.5%-26.9% respectively). Female gender (OR=1.75-1.47-1.53 respectively), age >40 years (OR=1.46-1.48 respectively), a closed space (OR=2.56-2.63-2.36 respectively) were each associated with higher mask usage. Those playing sports were about two times less likely to use facial masks (OR=0.64-0.54-0.54 respectively) than when compared to other activities. The percentage of those using masks correctly decreased gradually over time (364/552; 65.9%; 339/544; 62.3% and 304/516; 58.9% respectively); more females wore masks correctly (p<0.05). Breaches in nose covering (47.3%-52.7%) and hanging masks around the neck (39.2%-42.6%) were the most common incorrect practices while wearing a mask. Conclusions: Cloth masks were predominantly used in the public space. Practices regarding the facial masks usage were found to be inadequate, especially among young males, and tended to decrease over time. Awareness campaigns regarding the need of the proper use of face masks by utilizing all communication channels available would be helpful during this pandemic to increase compliance.


Author(s):  
Matthew Hindman

The Internet was supposed to fragment audiences and make media monopolies impossible. Instead, behemoths like Google and Facebook now dominate the time we spend online—and grab all the profits from the attention economy. This book explains how this happened. It sheds light on the stunning rise of the digital giants and the online struggles of nearly everyone else—and reveals what small players can do to survive in a game that is rigged against them. The book shows how seemingly tiny advantages in attracting users can snowball over time. The Internet has not reduced the cost of reaching audiences—it has merely shifted who pays and how. Challenging some of the most enduring myths of digital life, the book explains why the Internet is not the postindustrial technology that has been sold to the public, how it has become mathematically impossible for grad students in a garage to beat Google, and why net neutrality alone is no guarantee of an open Internet. It also explains why the challenges for local digital news outlets and other small players are worse than they appear and demonstrates what it really takes to grow a digital audience and stay alive in today's online economy. The book shows why, even on the Internet, there is still no such thing as a free audience.


Author(s):  
William W. Franko ◽  
Christopher Witko

The authors conclude the book by recapping their arguments and empirical results, and discussing the possibilities for the “new economic populism” to promote egalitarian economic outcomes in the face of continuing gridlock and the dominance of Washington, DC’s policymaking institutions by business and the wealthy, and a conservative Republican Party. Many states are actually addressing inequality now, and these policies are working. Admittedly, many states also continue to embrace the policies that have contributed to growing inequality, such as tax cuts for the wealthy or attempting to weaken labor unions. But as the public grows more concerned about inequality, the authors argue, policies that help to address these income disparities will become more popular, and policies that exacerbate inequality will become less so. Over time, if history is a guide, more egalitarian policies will spread across the states, and ultimately to the federal government.


2021 ◽  
Vol 23 (1) ◽  
pp. 62-80
Author(s):  
Laura Järvi

In the context of the Finnish welfare state, this article examines the role of occupational welfare in the interplay between public and occupational sickness benefits from 1947 to 2016, to analyse how the two sickness benefits have interacted over time and the role occupational welfare has played in sickness provision. Previous research has noted that occupational benefits may support or compensate for the much-debated declining welfare state. Hence, it is important to acquire greater knowledge about the public-occupational interplay. The study uses in-depth individual-level analysis from a retrospective point of view, which has been rare in previous research, and examines the public-occupational interplay in the Finnish sickness benefit system from the first national collective agreements to 2016. Based on the reforms made to the public system, the article identifies and utilises six different phases of the Finnish sickness allowance system in the main analysis. The institutional development of sickness provision is investigated by analysing the compensation rate and benefit period, using metalworkers as a representative example of blue-collar workers. The results indicate that occupational benefits are strongly institutionalised in the Finnish sickness benefit system. The interplay between statutory and occupational sickness benefits has taken different forms over time, and occupational benefits have been re-negotiated as the statutory system has been reformed. The article provides valuable information on the historical development and relevance of occupational welfare, in terms of not only understanding its significance for individuals but also comprehending the logic of the interplay in the public-private mix of welfare provision.


2011 ◽  
Vol 11 (1) ◽  
pp. 52-67 ◽  
Author(s):  
Larita Killian

ABSTRACT Due to fiscal constraints and demands for increased accountability, scholars and public officials are reviewing the structure and reporting practices of local governments. These efforts are often incomplete, however, because they bypass special districts, which now comprise over 40 percent of all local governments. The proliferation of special districts has the potential to increase government costs, redirect the allocation of scarce resources, remove debt and expenditure practices from the public eye, and reduce democratic controls over elected officials. This paper highlights some of the public interest concerns related to these entities to inform future, localized research. For decades, scholars have approached special districts from two opposing theoretical perspectives: institutional reform and public choice. Literature from these opposing perspectives is used to analyze special districts along three dimensions: efficiency and economy of operations, policy alignment and allocation of resources, and democratic accountability. This paper uses the U.S. Census Bureau definition of special districts, though alternative definitions are discussed. Efforts by four states (Florida, Pennsylvania, Indiana, and New York) to improve local government, and their varying approaches to special districts, are reviewed, leading to the conclusion that the complex issues related to special districts must be resolved within state contexts.


1989 ◽  
Vol 18 (2) ◽  
pp. 187-210 ◽  
Author(s):  
Aidan Kelly

ABSTRACTThe theory of incrementalism is a long-standing and influential perspective on policy making and resource allocation in the public sector. Previous research on social services budgeting suggests that resources are allocated incrementally, although there has been some debate as to whether this would persist in an era of prolonged expenditure restraint. Incremental budgetary outcomes are operationalised as percentage changes in budgets pro-rata with percentage changes in the total budget, and as stable shares of total expenditure for each activity. Data for 99 English social service departments supports incrementalism in that budget shares change by only 1.8 per cent, but percentage allocations depart from pro-rata incrementalism by a mean of 74 per cent. The comparison of the two summary indices over time supports those who have argued that prolonged restraint would encourage non-incremental budgeting, but change in the agency's total budget does not consistently predict budgetary outcomes. The effect of restraint on incrementalism varies with the measure used and across the component activities of the measures, but there is enough evidence to suggest a significant decline in the level of incrementalism in social service departments. In particular, non-incremental budgeting is strongly associated with the growth of day centre expenditure on the mentally ill and the elderly before 1982–3, and after that with the pursuit of the ‘community care’ strategy within state provided services for the elderly and children. Incrementalism as a general theory of agency budgeting is limited in its ability to explain variations in the degree of incrementalism between agencies, between component budgets and over time. The conclusion suggests that further research should seek explanations for these variations in the varying balance of the competing forces which shape outcomes in welfare bureaucracies and in the relationship between these forces and the organisation's environment.


2010 ◽  
Vol 64 (3) ◽  
pp. 443-479 ◽  
Author(s):  
Matthew A. Baum ◽  
Tim Groeling

AbstractPrevailing theories hold that U.S. public support for a war depends primarily on its degree of success, U.S. casualties, or conflict goals. Yet, research into the framing of foreign policy shows that public perceptions concerning each of these factors are often endogenous and malleable by elites. In this article, we argue that both elite rhetoric and the situation on the ground in the conflict affect public opinion, but the qualities that make such information persuasive vary over time and with circumstances. Early in a conflict, elites (especially the president) have an informational advantage that renders public perceptions of “reality” very elastic. As events unfold and as the public gathers more information, this elasticity recedes, allowing alternative frames to challenge the administration's preferred frame. We predict that over time the marginal impact of elite rhetoric and reality will decrease, although a sustained change in events may eventually restore their influence. We test our argument through a content analysis of news coverage of the Iraq war from 2003 through 2007, an original survey of public attitudes regarding Iraq, and partially disaggregated data from more than 200 surveys of public opinion on the war.


2021 ◽  
Vol 28 (1) ◽  
pp. 123-142
Author(s):  
Filippo Annunziata

The Weiss affair, culminating in the BVerfG ruling of 5 May 2020 ( Weiss II), marks a break-up point in the long-standing dialogue between the BVerfG and the CJEU. The judges in Karlsruhe refused to follow the decision rendered by the CJEU in a preliminary ruling ( Weiss I) and ordered EU institutions to provide further clarifications on the proportionality assessment of the Public Sector Purchase Programme. This paper claims that the principles applied by the BVerfG in Weiss I are quite similar to those employed in the Gauweiler and Landeskreditbank-Banking Union cases. Considering that background, it will be argued that the construction of the principles employed by the BVerfG for the judicial review of EU acts did not undergo dramatic changes over time. The different outcome of Weiss II is due to the fact that, according to the BVerfG, insufficient elements of explanation and justification were provided by the ECB and the CJEU. Therefore, the central problem of Weiss II ends up being a procedural question of allegedly insufficient statements of reasons. From Gauweiler to Weiss II, one also sees the development of the standards for the judicial review of the ECB’s decisions, in the fields of both monetary policy and banking supervision.


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