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Statistics and Probability

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Selected Works

2010

Time Factors

Articles 1 - 5 of 5

Full-Text Articles in Life Sciences

Body Mass Index, Treatment Practices, And Mortality In Patients With Acute Heart Failure, Timothy Fitzgibbons, Olga Hardy, Darleen Lessard, Joel Gore, Jorge Yarzebski, Robert Goldberg Jul 2010

Body Mass Index, Treatment Practices, And Mortality In Patients With Acute Heart Failure, Timothy Fitzgibbons, Olga Hardy, Darleen Lessard, Joel Gore, Jorge Yarzebski, Robert Goldberg

Jorge L. Yarzebski

OBJECTIVES: Obesity is associated with an increased risk of heart failure (HF). Among patients presenting with acute HF, however, differences in clinical characteristics, treatment regimens, and short-term prognosis of varying weights are largely unknown, particularly from a broader population-based perspective. METHODS: A total of 3722 patients admitted with acute HF to 11 greater Worcester (Massachusetts, USA) hospitals during 1995 and 2000 were categorized as being lean (n = 216), normal weight (n = 1465), overweight (n = 1007), or obese (n = 1034) at the time of hospitalization. RESULTS: Obese patients with decompensated HF were significantly younger (mean age = …


Temporal Trends (1975 Through 1990) In The Incidence And Case-Fatality Rates Of Primary Ventricular Fibrillation Complicating Acute Myocardial Infarction. A Communitywide Perspective, David Chiriboga, Jorge Yarzebski, Robert Goldberg, Joel Gore, Joseph Alpert Jul 2010

Temporal Trends (1975 Through 1990) In The Incidence And Case-Fatality Rates Of Primary Ventricular Fibrillation Complicating Acute Myocardial Infarction. A Communitywide Perspective, David Chiriboga, Jorge Yarzebski, Robert Goldberg, Joel Gore, Joseph Alpert

Jorge L. Yarzebski

BACKGROUND: As part of a population-based study of acute myocardial infarction, we examined changes over time in the incidence and in-hospital case-fatality rates of primary ventricular fibrillation complicating acute myocardial infarction. METHODS AND RESULTS: Patients with validated acute myocardial infarction hospitalized at 16 hospitals in the Worcester, Mass, metropolitan area between 1975 and 1990 comprised the study sample. During the 15-year study period, 5.1% of patients developed primary ventricular fibrillation in the setting of uncomplicated acute myocardial infarction, with this rate remaining relatively constant over time. Both age- and multivariable-adjusted analyses showed no significant trend in the incidence rates of …


Multidecade-Long Trends (1986-2005) In The Utilization Of Coronary Reperfusion And Revascularization Treatment Strategies In Patients Hospitalized With Acute Myocardial Infarction: A Community-Wide Perspective, Jared Wasser, Robert Goldberg, Frederick Spencer, Jorge Yarzebski, Joel Gore Jul 2010

Multidecade-Long Trends (1986-2005) In The Utilization Of Coronary Reperfusion And Revascularization Treatment Strategies In Patients Hospitalized With Acute Myocardial Infarction: A Community-Wide Perspective, Jared Wasser, Robert Goldberg, Frederick Spencer, Jorge Yarzebski, Joel Gore

Jorge L. Yarzebski

OBJECTIVES: The objectives of our community-wide investigation were to describe multidecade-long trends (1986-2005) in the utilization of thrombolytic therapy, percutaneous coronary interventions, and coronary artery bypass graft surgery in patients hospitalized with acute myocardial infarction (AMI). METHODS: The study sample consisted of 9422 greater Worcester (MA) residents hospitalized with confirmed AMI at all metropolitan Worcester medical centers in 11 annual periods between 1986 and 2005. RESULTS: Increases in the utilization of percutaneous coronary interventions were observed between 1986 (2.0%) and 2005 (50.7%) with the most rapid increases beginning in the late 1990s. Utilization of coronary artery bypass graft surgery during …


Changes Over Time In The Incidence And Case-Fatality Rates Of Primary Ventricular Fibrillation Complicating Acute Myocardial Infarction: Perspectives From The Worcester Heart Attack Study, Craig Thompson, Jorge Yarzebski, Robert Goldberg, Darleen Lessard, Joel Gore, James Dalen Jul 2010

Changes Over Time In The Incidence And Case-Fatality Rates Of Primary Ventricular Fibrillation Complicating Acute Myocardial Infarction: Perspectives From The Worcester Heart Attack Study, Craig Thompson, Jorge Yarzebski, Robert Goldberg, Darleen Lessard, Joel Gore, James Dalen

Jorge L. Yarzebski

BACKGROUND: Limited population-based data are available that describe temporal and recent trends in the incidence and case-fatality rates in patients with primary ventricular fibrillation (VF) complicating acute myocardial infarction (AMI). The purpose of this study was to describe changes over a 22-year period (1975 through 1997) in the incidence and hospital case-fatality rates of primary VF complicating AMI from a multihospital, community-wide perspective. METHODS AND RESULTS: This was an observational study of metropolitan Worcester residents hospitalized with a validated uncomplicated AMI (n = 5020) in all hospitals in the Worcester, Massachusetts, metropolitan area (1990 census population = 437,000) during 11 …


Twenty-Two Year (1975 To 1997) Trends In The Incidence, In-Hospital And Long-Term Case Fatality Rates From Initial Q-Wave And Non-Q-Wave Myocardial Infarction: A Multi-Hospital, Community-Wide Perspective, Mark Furman, Harold Dauerman, Robert Goldberg, Jorge Yarzebski, Darleen Lessard, Joel Gore Jul 2010

Twenty-Two Year (1975 To 1997) Trends In The Incidence, In-Hospital And Long-Term Case Fatality Rates From Initial Q-Wave And Non-Q-Wave Myocardial Infarction: A Multi-Hospital, Community-Wide Perspective, Mark Furman, Harold Dauerman, Robert Goldberg, Jorge Yarzebski, Darleen Lessard, Joel Gore

Jorge L. Yarzebski

OBJECTIVES: The goal of this study was to examine long-term trends in the incidence, in-hospital and long-term mortality patterns in patients with an initial non-Q-wave myocardial infarction (NQWMI) as compared with those with an initial Q-wave myocardial infarction (QWMI). BACKGROUND: Limited data are available describing trends in the incidence and mortality from an initial QWMI and NQWMI from a multi-hospital community-wide perspective. METHODS: Our study was an observational study of 5,832 metropolitan Worcester, Massachusetts residents (1990 census = 437,000) hospitalized with validated initial acute MI in all greater Worcester hospitals during 11 annual periods between 1975 and 1997. RESULTS: The …