scholarly journals PS120. Are Outcomes of Tibial Artery Atherectomy or Stenting Superior to Tibial Angioplasty Alone Over Time in the US Medicare Population?

2011 ◽  
Vol 53 (6) ◽  
pp. 61S
Author(s):  
Todd R. Vogel ◽  
Viktor Y. Dombrovskiy ◽  
Paul B. Haser ◽  
Jeffrey L. Carson ◽  
Alan M. Graham
Keyword(s):  
Tibial Artery ◽  
Medicare Population ◽  
The Us ◽  
Over Time

scholarly journals Analysis of 220 Years of Floodplain Population Dynamics in the US at Different Spatial Scales

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 141
Author(s):  
Firoza Akhter ◽  
Maurizio Mazzoleni ◽  
Luigia Brandimarte
Keyword(s):  
Population Dynamics ◽  
Large Scale ◽  
Spatial Scales ◽  
National Level ◽  
State Level ◽  
Economic Activities ◽  
Protection Measures ◽  
Management Planning ◽  
The Us ◽  
Over Time

In this study, we explore the long-term trends of floodplain population dynamics at different spatial scales in the contiguous United States (U.S.). We exploit different types of datasets from 1790–2010—i.e., decadal spatial distribution for the population density in the US, global floodplains dataset, large-scale data of flood occurrence and damage, and structural and nonstructural flood protection measures for the US. At the national level, we found that the population initially settled down within the floodplains and then spread across its territory over time. At the state level, we observed that flood damages and national protection measures might have contributed to a learning effect, which in turn, shaped the floodplain population dynamics over time. Finally, at the county level, other socio-economic factors such as local flood insurances, economic activities, and socio-political context may predominantly influence the dynamics. Our study shows that different influencing factors affect floodplain population dynamics at different spatial scales. These facts are crucial for a reliable development and implementation of flood risk management planning.

scholarly journals Trends in Disability Among Adults 55-64 in the United States and England From 2002 to 2016

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 303-303
Author(s):  
HwaJung Choi ◽  
Robert Schoeni ◽  
Tsai-Chin Cho ◽  
Kenneth Langa
Keyword(s):  
Activities Of Daily Living ◽  
Daily Living ◽  
Income Group ◽  
The United States ◽  
Annual Change ◽  
Individual Level ◽  
Income Groups ◽  
The Us ◽  
Disability Prevalence ◽  
Over Time

Abstract The paper’s goal is to assess whether and, if so, the extent to which prevalence in disability of adults near retirement ages in the US increased over time compared to their peers in England and examine income group differences in the relative trends. This study uses 2002-2016 Health and Retirement Study (HRS) and English Longitudinal Study of Ageing (ELSA) focusing on adults aged 55-64. Annual percent changes over the period of 2002-2016 for limitations in instrumental activities of daily living (IADL) and activities of daily living (ADL) are estimated for each survey (HRS and ELSA) using multivariable logistic regressions to adjust for individual-level characteristics While disability prevalence of adults ages 55-64 in England improved over the years of 2002-2016 (annual % change= -2.01 for IADL; - 2.53 for ADL), disability prevalence of US adults has not improved and in fact even worsened in terms of IADL (annual % change= +1.35). There are substantial variations in the IADL/ADL trends by income groups. In the US, the adverse trends in disability were more pronounced among the lowest income groups (annual % change in IADL=1.76 for bottom 20% vs. -2.08 for top 20%; annual % change in ADL=1.08 for bottom 20% vs. -2.08 for top 20%). In England, the disability status improved over time for all but the lowest income group. We will examine further to identify specific factors contributing to divergent/convergent trends in disability between the US and England.

A comparative study of RFID adoption patterns in retail

2021 ◽  
pp. 1-20
Author(s):  
Narges Kasiri ◽  
G. Scott Erickson ◽  
Gerd Wolfram
Keyword(s):  
Comparative Study ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Structural Model ◽  
Slow Pace ◽  
The Us ◽  
Frequency Identification ◽  
Insight Into ◽  
Current Stage ◽  
Over Time

Radio frequency identification (RFID) has been viewed as a promising technology for quite some time. Initially developed a couple of decades ago, the technology has been accompanied by predictions of imminent widespread adoption since its beginnings. A majority of retailers and other users are now using or planning to use the technology. This paper employs a combination of the technology-organization-environment (TOE) model and the 3-S (substitution, scale, structural) model to analyze the long journey of RFID adoption in retail. Top retail executives in the US and Europe were interviewed to investigate RFID adoption patterns based on differences in technological, organizational, and environmental circumstances. As the retail industry is moving into a post-adoption era, these results demonstrate the current stage of retail RFID adoption, identify factors playing important roles over time as motivators or impediments, and provide some insight into the slow pace of adoption.

scholarly journals Macroeconomic Synchronization Between G3 Countries

2002 ◽  
Vol 3 (2) ◽  
pp. 137-153 ◽  
Author(s):  
Amado Peirό
Keyword(s):  
Business Cycle ◽  
Interest Rates ◽  
Short Term ◽  
The Us ◽  
Production Prices ◽  
Over Time

AbstractThis paper studies the existence of a world business cycle by examining quarterly and annual comovements in production, prices and interest rates in the three main world economies: Germany, Japan and the US. In accordance with earlier studies, contemporaneous relationships clearly dominate short-term dynamics. The evidence indicates the existence of strong comovements in prices and long-term interest rates, and, to a lesser degree, in GDP and short-term interest rates. They are, however, rather unstable over time.

History and Current Trends in the Electronic Cigarette Retail Marketplace in the United States: 2010–2016

2018 ◽  
Vol 22 (5) ◽  
pp. 843-847 ◽  
Author(s):  
Jennifer Cantrell ◽  
Jidong Huang ◽  
Marisa Greenberg ◽  
Jeffrey Willett ◽  
Elizabeth Hair ◽  
...  
Keyword(s):  
Tobacco Industry ◽  
The United States ◽  
Retail Market ◽  
Current Trends ◽  
Published Evidence ◽  
The Us ◽  
Industry Response ◽  
Market Trends ◽  
The Impact ◽  
Over Time

Abstract Introduction The US market for electronic nicotine delivery systems (ENDS) has grown rapidly in the last decade. There is limited published evidence examining changes in the ENDS marketplace prior to the US Food and Drug Administration’s (FDA) deeming rule in 2016. This study describes US ENDS retail market trends from 2010 to 2016. Methods National data were obtained from Nielsen retail scanners for five product types: (1) disposables, (2) rechargeables, (3) cartridge replacements, (4) e-liquid bottle refills, and (5) specialty vapor products. We examined dollar sales, volume, price, brand, and flavor. Results Adjusted national sales increased from $11.6 million in 2010 to $751.2 million in 2016. The annual rate of sales growth rapidly increased before slowing through 2015. The rate of growth spiked in 2016. Market share for menthol products and other assorted flavors increased from 20% in 2010 to 52.1% by 2016. NJOY’s early market dominance shifted as tobacco industry brands entered the market and eventually captured 87.8% of share by 2016. Rechargeables and accompanying products comprised an increased proportion of total volume sold over time while disposable volume declined. Specialty vapor products appeared at retail in 2015. Conclusions Findings show strong early growth in the ENDS retail market followed by considerable slowing over time, despite a slight uptick in 2016. Trends reflect shifts to flavored products, newer generation “open-system” devices, lower prices, and tobacco industry brands. This study provides a baseline against which to compare the impact of FDA’s 2016 deeming rule and future actions on the ENDS marketplace. Implications This study uses market scanner data from US retail outlets to describe trends in the ENDS retail market from 2010 to 2016, providing a baseline against which to compare the impact of FDA’s 2016 deeming rule and future actions on the ENDS marketplace. Understanding historical market trends is valuable in assessing how future regulatory efforts and advances in ENDS technology may impact industry response and consumer uptake and use.

scholarly journals Shoulder arthroplasty in the US Medicare population: a 1-year evaluation of surgical complications, hospital admissions, and revision surgery

2018 ◽  
Vol 2 (1) ◽  
pp. 40-47 ◽  
Author(s):  
Sarah B. Floyd ◽  
Cole G. Chapman ◽  
Charles A. Thigpen ◽  
John M. Brooks ◽  
Richard J. Hawkins ◽  
...  
Keyword(s):  
Revision Surgery ◽  
Shoulder Arthroplasty ◽  
Surgical Complications ◽  
Hospital Admissions ◽  
Medicare Population ◽  
The Us

Changing minds via collective action: Exposure to the 2017 Women’s March predicts decrease in (some) men’s gender system justification over time

2018 ◽  
Vol 21 (5) ◽  
pp. 678-689 ◽  
Author(s):  
Tamar Saguy ◽  
Hanna Szekeres
Keyword(s):  
Public Opinion ◽  
Social Change ◽  
Collective Action ◽  
System Justification ◽  
Gender Identification ◽  
High Exposure ◽  
Men And Women ◽  
The Us ◽  
Gender System ◽  
Over Time

Even though social change efforts are largely aimed at impacting upon public opinion, there is an overwhelming scarcity of research on the potential consequences of collective action. We aimed to fill this gap by capitalizing on the widespread 2017 Women’s March that developed across the US and worldwide in response to Donald Trump’s inauguration. We assessed changes in gender system justification of men and women over time—before and right after the Women’s March ( N = 344). We further considered participants’ level of gender identification and reported levels of exposure to the march as predictors of change. Results showed that gender system justification decreased over time, but only among low-identified men with relatively high exposure to the protests. For men highly identified with their gender, gender system justification actually increased with greater exposure to the protests. For women, we did not observe changes in gender system justification. Implications for collective action and for gender relations are discussed.

scholarly journals The Twilight of the Polls? A Review of Trends in Polling Accuracy and the Causes of Polling Misses

2018 ◽  
Vol 53 (4) ◽  
pp. 757-790 ◽  
Author(s):  
Christopher Prosser ◽  
Jonathan Mellon
Keyword(s):  
Public Opinion ◽  
Historical Context ◽  
Conventional Wisdom ◽  
Future Directions ◽  
High Profile ◽  
New Approaches ◽  
The Us ◽  
Vote Intention ◽  
Representative Samples ◽  
Over Time

Polls have had a number of high-profile misses in recent elections. We review the current polling environment, the performance of polls in a historical context, the mechanisms of polling error, and the causes of several recent misses in Britain and the US. Contrary to conventional wisdom, polling errors have been constant over time, although the level of error has always been substantially beyond that implied by stated margins of error. Generally, there is little evidence that voters lying about their vote intention (so-called ‘shy’ voters) is a substantial cause of polling error. Instead, polling errors have most commonly resulted from problems with representative samples and weighting, undecided voters breaking in one direction, and to a lesser extent late swings and turnout models. We conclude with a discussion of future directions for polling both in terms of fixing the problems identified and new approaches to understanding public opinion.

Abstract 60: National Temporal Patterns in Recurrent Stroke by Demographic Characteristics and Geographic Regions: 2001-2016

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Judith H Lichtman ◽  
Erica C Leifheit ◽  
Yun Wang ◽  
Larry B Goldstein
Keyword(s):  
Proportional Hazards Model ◽  
Recurrent Stroke ◽  
Temporal Trends ◽  
Healthcare Delivery ◽  
Temporal Patterns ◽  
Cox Proportional Hazards ◽  
Cox Proportional Hazards Model ◽  
Fee For Service ◽  
The Us ◽  
Over Time

Background: There have been important advances in secondary stroke prevention and a focus on healthcare delivery in the US over the past two decades. Yet, little is known about temporal patterns of recurrent stroke in the US. We examined temporal trends in recurrent stroke by sociodemographic characteristics and geographic areas using national Medicare data. Methods: We included fee-for-service Medicare beneficiaries aged ≥65y with a primary discharge diagnosis of ischemic stroke from 2001 to 2016. We fit a Cox proportional hazards model that censored for change in Medicare enrollment and accounted for death to evaluate the temporal trend in 1-year recurrent stroke, adjusting for demographic and clinical factors. Models were repeated for subgroups defined by age, sex, race, and state. We mapped smoothed rates of 1-year recurrent stroke by county to assess geographic variation over time. Results: There were 3,485,618 unique beneficiaries discharged with stroke during the study period. Demographic and clinical characteristics remained relatively stable over time, but the proportions discharged with home health services and inpatient rehabilitation increased. The observed 1-year recurrent stroke rate decreased from 11.2% in 2001-2004 to 9.3% in 2013-2016, with an adjusted annual reduction in recurrence from 2001-2016 of 1.49% (95% CI 1.40%-1.58%). There were significant reductions for all age, sex, and race groups (A). Geographic areas with persistently high rates were identified over time (B). In state-stratified analysis, the annual percentage reduction in recurrence ranged from -1.2% to 2.5% and was significant for all but 12 states. Conclusions: Recurrent strokes decreased over time overall and by sociodemographic subgroups; however, we identified geographic areas with persistently high recurrence rates. Such findings can target secondary prevention intervention opportunities for high-risk populations and communities.

Abstract WMP60: Temporal Trends in Incidence, Prevalence and Epidemiological Characteristics of Cerebral Venous Thrombosis in the United States

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Fadar Otite ◽  
Smit Patel ◽  
Richa Sharma ◽  
Pushti Khandwala ◽  
Devashish Desai ◽  
...  
Keyword(s):  
United States ◽  
Risk Factors ◽  
Cerebral Venous Thrombosis ◽  
The United States ◽  
P Value ◽  
Joinpoint Regression ◽  
The Us ◽  
Epidemiological Characteristics ◽  
Over Time ◽  
Age And Sex

Background: The primary aim of this study is to describe current trends in racial-, age- and sex-specific incidence, clinical characteristics and burden of cerebral venous thrombosis (CVT) in the United States (US). Methods: Validated International Classification of Disease codes were used to identify all adult new cases of CVT (n=5,567) in the State Inpatients Database of New York and Florida (2006-2016) and all cases of CVT in the entire US from the National Inpatient Sample 2005-2016 (weighted n=57,315). Incident CVT counts were combined with annual US Census data to compute age and sex-specific incidence of CVT. Joinpoint regression was used to evaluate trends in incidence over time. Results: From 2005-2016, 0.47%-0.80% of all strokes in the US were CVTs but this proportion increased by 70.4% over time. Of all CVTs over this period, 66.7% were in females but this proportion declined over time (p<0.001). Pregnancy/puerperium (27.4%) and cancer (11.8%) were the most common risk factors in women, while cancer (19.5%) and central nervous trauma (11.3) were the most common in men. Whereas the prevalence of pregnancy/puerperium declined significantly over time in women, that of cancer, inflammatory conditions and trauma increased over time in both sexes. Annual age and sex-standardized incidence of CVT in cases/million population ranged from 13.9-20.2, but incidence varied significantly by sex (women: 20.3-26.9; men 6.8-16.8) and by age/sex (women 18-44yo: 24.0-32.6%; men: 18-44yo: 5.3-12.8). Age and sex-standardized incidence also differed by race (Blacks:18.6-27.2; whites: 14.3-18.5; Asians: 5.1-13.8). On joinpoint regression, incidence increased across 2006-2016 but most of this increase was driven by increase in all age groups of men (combined annualized percentage change (APC) 9.2%, p-value <0.001), women 45-64 yo (APC 7.8%, p-value <0.001) and women ≥65 yo (APC 7.4%, p-value <0.001). Incidence in women 18-44 yo remained unchanged over time . Conclusion: The epidemiological characteristics of CVT patients in the US is changing. Incidence increased significantly over the last decade. Further studies are needed to determine whether this increase represents a true increase from changing risk factors or artefactual increase from improved detection.

Sign in / Sign up

Export Citation Format

Share Document