Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Television (9)
- Publications and International Presentations (7)
- Radio (7)
- Aged (5)
- Female (5)
-
- Humans (5)
- Male (5)
- Middle Aged (5)
- Myocardial Infarction (5)
- Time Factors (4)
- Aged, 80 and over (3)
- Massachusetts (3)
- Multivariate Analysis (3)
- Adult (2)
- Incidence (2)
- Thrombolytic Therapy (2)
- *Emergency Service, Hospital (1)
- *Patient Acceptance of Health Care (1)
- Adolescent (1)
- Age Factors (1)
- Angioplasty, Balloon (1)
- Causal Inference (1)
- Chi-Square Distribution (1)
- Health Services Accessibility (1)
- Heart Block (1)
- Heart Function Tests (1)
- Hospitalization (1)
- Hospitals, General (1)
- Hospitals, Urban (1)
- Multicenter Studies as Topic (1)
- Publication Year
Articles 1 - 29 of 29
Full-Text Articles in Physical Sciences and Mathematics
Why Match In Individually And Cluster Randomized Trials?, Laura Balzer, Maya Petersen, Mark Van Der Laan
Why Match In Individually And Cluster Randomized Trials?, Laura Balzer, Maya Petersen, Mark Van Der Laan
Laura B. Balzer
The decision to match individuals or clusters in randomized trials is motivated by both practical and statistical concerns. Matching protects against chance imbalances in baseline covariate distributions and is thereby thought to improve study credibility. Matching is also implemented to increase study power. Analogue to Rose and van der Laan (2009), this article investigates the asymptotic efficiency of pair-matching individuals or clusters relative to not matching in randomized trials. We focus on estimating the average treatment effect. We use the efficient influence curve to understand the information provided by each design for estimation of the target causal parameter. Our approach …
Prognosis Of Acute Myocardial Infarction Complicated By Complete Heart Block (The Worcester Heart Attack Study), Robert Goldberg, Juan Zevallos, Jorge Yarzebski, Joseph Alpert, Joel Gore, Z. Chen, James Dalen
Prognosis Of Acute Myocardial Infarction Complicated By Complete Heart Block (The Worcester Heart Attack Study), Robert Goldberg, Juan Zevallos, Jorge Yarzebski, Joseph Alpert, Joel Gore, Z. Chen, James Dalen
Jorge L. Yarzebski
As part of a community-based study of patients hospitalized with acute myocardial infarction (AMI) in the Worcester, Massachusetts, metropolitan area, changes over time in the incidence rates of complete heart block (CHB) complicating AMI, and the prognostic impact of CHB on the in-hospital and long-term survival of these patients were examined. In all, 4,762 patients with validated AMI hospitalized at 16 hospitals in the Worcester metropolitan area during 1975, 1978, 1981, 1984, 1986 and 1988 constituted the study sample. The incidence rates of CHB complicating AMI remained relatively stable at 5.8% over the 13-year (1975 to 1988) period studied. The …
Long-Term Trends (1986-2003) In The Use Of Coronary Reperfusion Strategies In Patients Hospitalized With Acute Myocardial Infarction In Central Massachusetts, Robert J. Goldberg, Frederick A. Spencer, Joseph Okolo, Darleen M. Lessard, Jorge L. Yarzebski, Joel M. Gore
Long-Term Trends (1986-2003) In The Use Of Coronary Reperfusion Strategies In Patients Hospitalized With Acute Myocardial Infarction In Central Massachusetts, Robert J. Goldberg, Frederick A. Spencer, Joseph Okolo, Darleen M. Lessard, Jorge L. Yarzebski, Joel M. Gore
Jorge L. Yarzebski
BACKGROUND: The objectives of our study were to examine long-term (1986-2003) trends in the use of percutaneous coronary interventions (PCI) and thrombolytic therapy in the management of patients hospitalized at all Central Massachusetts medical centers with acute myocardial infarction (AMI). Our secondary study goal was to examine factors associated with use of these coronary reperfusion strategies. Limited contemporary data are available about changing trends in the use of coronary reperfusion strategies, particularly from a population-based perspective. METHODS: The sample consisted of 9422 greater Worcester (MA) residents hospitalized with AMI at all metropolitan Worcester medical centers in 10 annual periods between …
A Community-Wide Perspective Of Gender Differences And Temporal Trends In The Use Of Diagnostic And Revascularization Procedures For Acute Myocardial Infarction, David Chiriboga, Jorge Yarzebski, Robert Goldberg, Z. Chen, Jerry Gurwitz, Joel Gore, Joseph Alpert, James Dalen
A Community-Wide Perspective Of Gender Differences And Temporal Trends In The Use Of Diagnostic And Revascularization Procedures For Acute Myocardial Infarction, David Chiriboga, Jorge Yarzebski, Robert Goldberg, Z. Chen, Jerry Gurwitz, Joel Gore, Joseph Alpert, James Dalen
Jorge L. Yarzebski
This study compares the overall use, as well as temporal trends, of various diagnostic and revascularization procedures for acute myocardial infarction (AMI) in men and women. The study sample comprised a total of 2,924 men and 1,838 women with validated AMI admitted to any of the 16 teaching and community hospitals in the Worcester, Massachusetts, metropolitan area during 1975, 1978, 1981, 1984, 1986 and 1988. During the period under study there was a significant increase in use of each of the examined procedures during hospitalization for AMI in both men and women. Increasing use of multiple procedures was also seen …
Temporal Trends And Factors Associated With Extent Of Delay To Hospital Arrival In Patients With Acute Myocardial Infarction: The Worcester Heart Attack Study, Jorge Yarzebski, Robert Goldberg, Joel Gore, Joseph Alpert
Temporal Trends And Factors Associated With Extent Of Delay To Hospital Arrival In Patients With Acute Myocardial Infarction: The Worcester Heart Attack Study, Jorge Yarzebski, Robert Goldberg, Joel Gore, Joseph Alpert
Jorge L. Yarzebski
Factors associated with delay to hospital arrival after the onset of symptoms suggestive of acute myocardial infarction (AMI) were examined in the late 1960s and 1970s, but recent data concerning these characteristics are limited. The purpose of the present study was to examine overall and temporal distributions of the extent of patients' delay from the time of onset of AMI symptoms to hospital arrival and factors associated with delay in seeking medical care from a multihospital, population-based perspective. Review of medical records was undertaken of patients hospitalized with a discharge diagnosis of AMI in 16 teaching and community hospitals in …
Patient Delay And Receipt Of Thrombolytic Therapy Among Patients With Acute Myocardial Infarction From A Community-Wide Perspective, Robert Goldberg, Jerry Gurwitz, Jorge Yarzebski, J. Landon, Joel Gore, Joseph Alpert, P. Dalen, James Dalen
Patient Delay And Receipt Of Thrombolytic Therapy Among Patients With Acute Myocardial Infarction From A Community-Wide Perspective, Robert Goldberg, Jerry Gurwitz, Jorge Yarzebski, J. Landon, Joel Gore, Joseph Alpert, P. Dalen, James Dalen
Jorge L. Yarzebski
The duration of patient delay from the time of onset of symptoms of acute myocardial infarction (AMI) to hospital presentation, and the relation of delay time and various patient characteristics to receipt of thrombolytic therapy were examined as part of a community-based study of patients hospitalized with AMI in the Worcester, Massachusetts, metropolitan area. In all, 800 patients with validated AMI hospitalized at 16 hospitals in the Worcester metropolitan area in 1986 and 1988 constituted the study sample. Patients delayed on average 4 hours between noting symptoms suggestive of AMI and presenting to area-wide emergency departments with no significant change …
Reframing Global Health & Environmental Issues In The 21st Century, Nat Quansah
Reframing Global Health & Environmental Issues In The 21st Century, Nat Quansah
Nat Quansah
No abstract provided.
Raokandro Malagasy (Medicinal Plants Of Madagascar), Nat Quansah
Raokandro Malagasy (Medicinal Plants Of Madagascar), Nat Quansah
Nat Quansah
No abstract provided.
Traditional Medicine And Traditional Music In Madagascar, Nat Quansah
Traditional Medicine And Traditional Music In Madagascar, Nat Quansah
Nat Quansah
No abstract provided.
Fahasalamana Sy Ny Tontolo Iainana (Health & Environment), Nat Quansah
Fahasalamana Sy Ny Tontolo Iainana (Health & Environment), Nat Quansah
Nat Quansah
No abstract provided.
“Pour En Savoir Plus A Propos Des Plantes Médicinales.” Quinzaine Scientifique : Exposition Sur La Célébration De L’Année De La Science, Nat Quansah
Nat Quansah
No abstract provided.
Les Plantes Médicinales Et L’Homme, Nat Quansah
Global Challenges Show, Nat Quansah
Space Ship Earth – Clinic In Forest, Nat Quansah
‘A View From Johannesburg.’ Daily Reports On The World Summit On Sustainable Development, Nat Quansah
‘A View From Johannesburg.’ Daily Reports On The World Summit On Sustainable Development, Nat Quansah
Nat Quansah
No abstract provided.
Role Of Wireless Technology In Meeting Global Health Care Needs., Nat Quansah
Role Of Wireless Technology In Meeting Global Health Care Needs., Nat Quansah
Nat Quansah
No abstract provided.
Trade In Medicinal Plants: The Need For It To Be Carried Out Based On The Principle Of Conservation, Nat Quansah
Trade In Medicinal Plants: The Need For It To Be Carried Out Based On The Principle Of Conservation, Nat Quansah
Nat Quansah
No abstract provided.
Integrated Health Care Development., Nat Quansah
Saving The Jungles Of Madagascar, Nat Quansah
Integrated Health Care System, Nat Quansah
Outlook: Madagascar, Nat Quansah
Africa Features: Madagascar, Wild Drugstore, Nat Quansah
Africa Features: Madagascar, Wild Drugstore, Nat Quansah
Nat Quansah
No abstract provided.
Ethno-Botany. Field Notes Nature Documentaries, Nat Quansah
Ethno-Botany. Field Notes Nature Documentaries, Nat Quansah
Nat Quansah
No abstract provided.
Building Madagascar’S Capacity In Medicinal Plants Research: Training In Ethno-Pharmacology And Phytochemistry, Nat Quansah
Building Madagascar’S Capacity In Medicinal Plants Research: Training In Ethno-Pharmacology And Phytochemistry, Nat Quansah
Nat Quansah
No abstract provided.
Madagascar: Red Island Green Heart, Nat Quansah
Importance Of Biodiversity For Our Development (Earth Summit), Nat Quansah
Importance Of Biodiversity For Our Development (Earth Summit), Nat Quansah
Nat Quansah
No abstract provided.
Madagascar: Island Of Ghosts, Nat Quansah
The Search For Medicinal Plants Among Madagascar’S Tsimihety Ethnic Group, Nat Quansah
The Search For Medicinal Plants Among Madagascar’S Tsimihety Ethnic Group, Nat Quansah
Nat Quansah
No abstract provided.
University Of London Expedition To Madagascar Report, Nat Quansah
University Of London Expedition To Madagascar Report, Nat Quansah
Nat Quansah
No abstract provided.