Iribarren, Carlos
Research interests include the genetic determinants of coronary disease.
Research interests include the genetic determinants of coronary disease.
Rationale: In August 2013, the Hospital Readmission Reduction Program announced financial penalties on hospitals with higher than expected risk-adjusted 30-day…
Rationale: People with chronic obstructive pulmonary disease (COPD) have an increased risk of cardiovascular disease and may be more susceptible…
Background Low cardiorespiratory fitness (CRF) and obesity are risk factors for heart failure but their associations with right ventricular (RV)…
The Hospital Readmissions Reduction Program (HRRP) was developed and implemented by the Centers for Medicare & Medicaid Services to curb…
Airflow obstruction is associated with cognitive dysfunction but studies have not assessed how emphysema, a structural phenotype of lung disease,…
Prediction of readmission and death after hospitalization for heart failure (HF) is an unmet need. We evaluated the ability of…
Idiopathic pulmonary fibrosis (IPF) is a rare, chronic lung disease associated with substantial symptom burden, morbidity, and cost. Delivery of…
Despite well-documented case series of hypersensitivity pneumonitis (HP), epidemiological data delineating relative contributions of risk factors are sparse. To address…
Active tuberculosis (TB) disease leads to substantial mortality but is preventable through screening and treatment for latent TB infection. Early…
This study proposes to understand patterns and multilevel determinants of racial/ethnic disparities in Lung Cancer Screening utilization from 2017 onward…
As of March 26, 2020, there have been more than 80,000 cases and 1,000 deaths in the US due to…
Lung cancer is the leading cause of cancer mortality in both men and women in the United States. COPD is…
Peak lung function and rate of decline predict future airflow obstruction and nonrespiratory comorbid conditions. Associations between lung function trajectories…
The overall goal of this project is to demonstrate that the newly FDA-approved Airwave Oscillometry System (tremoFlo c-100, Thorasys) can…
Active tuberculosis (TB) is preventable. To quantify the potential value of prevention, we assessed active TB burden in a large…
OBJECTIVES: We investigated whether patients with chronic obstructive pulmonary disease could safely receive noninvasive ventilation outside of the ICU.DESIGN: Retrospective…
RATIONALE: In October 2012, the initial phase of the Hospital Readmission Reduction Program (HRRP) imposed financial penalties on hospitals with…
Few studies describe both inpatient and outpatient treatment and outcomes of patients with acute venous thromboembolism in the United States…
We validated an algorithm to detect frequency errors in computerized healthcare data and estimated the incidence of these errors in…
The KPNC-ILD cohort will consist of approximately 10,000 patients with interstitial lung disease. It will be built through electronic health…
The study aim is to optimize the Kaiser Permanente Northern California (KPNC) Interstitial Lung Disease (ILD) algorithm and establish the…
BACKGROUND: Medical malpractice data can be leveraged to understand specialty-specific risk.METHODS: Malpractice claims were examined from the Comparative Benchmarking System…
Background Diminished peak lung function in young adulthood is a risk factor for future chronic obstructive pulmonary disease. The association…
Many low-risk patients with acute pulmonary embolism (PE) in the emergency department (ED) are eligible for outpatient care but are…
Chronic obstructive pulmonary disease (COPD) is associated with the development of atrial fibrillation (AF), and may complicate treatment of AF…
This study employs a cluster randomization design to examine the vaccine effectiveness of Flublok relative to that of other flu…
We sought to determine the proportion of bronchiolitis episodes attributable to respiratory syncytial virus (RSV) among ICD-9 coded infant bronchiolitis…
Nontuberculous mycobacterial (NTM) pulmonary disease prevalence is increasing. To determine the association between the use of inhaled corticosteroids and the…
Tuberculosis (TB) remains an important problem among end-stage renal disease (ESRD) patients. We reviewed the epidemiology of TB and ESRD,…
There are limited data on factors in young adulthood that predict future lung disease. To determine the relationship between respiratory…
Four decades ago, U.S. life expectancy was within the same range as other high-income peer countries. However, during the past…
We sought to determine the real-world effectiveness of respiratory syncytial virus (RSV) immunoprophylaxis in a population-based cohort to inform policy…
To assess the clinical effectiveness of beta-blocker therapy in individuals with heart failure (HF) and chronic lung disease and of…
The objective is to clarify the role of immunodeficiency and pneumonia in elevated lung cancer risk among HIV-infected individuals. Cohort…
This study will take advantage of longitudinal data collection in CARDIA to evaluate the association between lung function and risk…
The goal of this project is to conduct simulation analyses using an existing dataset (from our AHRQ-funded PRIMA study) to…
Although COPD strongly predisposes to lung cancer, and both share tobacco smoke exposure as an etiologic risk factor, few studies…
An observational study of the Kaiser Permanente Northern California (KPNC) BMI coding distributions was conducted to ascertain the trends in…
Both quality improvement and clinical research efforts over the past few decades have focused on consensus definition of sepsis and…
Pulmonary oedema (PO) is a common manifestation of acute heart failure (AHF) and is associated with a high-acuity presentation and…
Early menarche is linked to higher incidence of adult asthma, suggesting that earlier puberty may influence type 2 immune response…
AIM: The objective of this study was to evaluate the clinical presentation, inpatient management, and in-hospital outcome of patients hospitalized…
The Epidemiologic Study of Xolair (omalizumab): Evaluating Clinical Effectiveness and Long-term Safety in Patients with Moderate-to-Severe Asthma (EXCELS) assessed the…
Lung-related research primarily focuses on the etiology and management of diseases. In recent years, interest in primary prevention has grown…
Higher levels of small low-density lipoprotein (LDL) and lower levels of high-density lipoprotein (HDL) subclasses have been associated with increased…
BACKGROUND: Adjustment for differing risks among patients is usually incorporated into newer payment approaches, and current risk models rely on…
Respiratory syncytial virus (RSV) infection in infancy is associated with subsequent recurrent wheezing. A retrospective cohort study examined children born…
BACKGROUND: Anti-tumor necrosis factor-alpha (TNF-alpha) agents have been hypothesized to increase the risk of interstitial lung disease (ILD), including its…
BACKGROUND: Although chronic obstructive pulmonary disease (COPD) is a major cause of disability worldwide, its determinants remain poorly defined. OBJECTIVE:…
BACKGROUND: Although long-chain omega-3 (n-3) PUFAs (LComega3PUFAs) have been linked to the prevention of some inflammatory disorders, little is known…
Asthma has been associated with increased cardiovascular disease (CVD) risk. The authors ascertained the association of asthma with CVD and…
Failure to expeditiously diagnose atrial fibrillation (AF) as the cause of ischemic stroke has unclear consequences. We studied the association…
BACKGROUND: Bronchiolitis is common in the first two years of life and is the most frequent cause of hospitalization in…
BACKGROUND: Obesity contributes to respiratory symptoms and exercise limitation, but the relationships between obesity, airflow obstruction (AO), respiratory symptoms and…
CONTEXT: Marijuana smoke contains many of the same constituents as tobacco smoke, but whether it has similar adverse effects on…
BACKGROUND: Screening for tuberculosis prior to highly active antiretroviral therapy (HAART) initiation is not routinely performed in low-incidence settings. Identifying…
BACKGROUND: There is little epidemiologic evidence to assess the maturation of respiratory control in premature infants. OBJECTIVE: To measure the…
PURPOSE: To identify ethnic differences for risk of hospitalization for asthma and chronic obstructive pulmonary disease (COPD). METHODS: We undertook…
PURPOSE: We sought to quantify the impact of respiratory muscle and lower extremity strength on exercise capacity and lower extremity…
BACKGROUND: COPD is a major cause of disability, but little is known about how disability develops in this condition. METHODS:…
BACKGROUND: Although chronic obstructive pulmonary disease (COPD) is a common cause of death and disability, little is known about the…
OBJECTIVE: Apnea of prematurity is one of the most common diagnoses in the NICU. Because resolution of apnea is a…
BACKGROUND: Bronchiolitis has the highest incidence rate of any lower respiratory infection among infants and children /=41 weeks' GA. Bronchiolitis…
OBJECTIVE: To quantify the relationship between recurrent wheezing (RW) in the third year of life and respiratory syncytial virus (RSV)…
BACKGROUND: The association between asthma and anaphylaxis remains poorly understood. OBJECTIVE: To ascertain, in a managed care organization in northern…
BACKGROUND: Psychologic factors affect how patients with COPD respond to attempts to improve their self-management skills. Learned helplessness may be…
BACKGROUND: A comprehensive survey-based COPD severity score has usefulness for epidemiologic and health outcomes research. We previously developed and validated…
BACKGROUND: several studies have shown an association between chronic obstructive pulmonary disease (COPD) and cognitive impairment. These studies have been…
BACKGROUND: Limited data suggest that moderate alcohol drinkers may have better lung airways function than abstainers. Because few studies have…
OBJECTIVE: There are limited data on the risk of pulmonary disease in patients with diabetes. The aim of this study…
BACKGROUND: Prior research on the risk of depression in chronic obstructive pulmonary disease (COPD) has yielded conflicting results. Furthermore, we…
OBJECTIVE: To test the association of fitness changes over 7 and 20 years on the development of diabetes in middle…
BACKGROUND: The contribution of occupational exposures to chronic obstructive pulmonary disease (COPD) and, in particular, their potential interaction with cigarette…
Secondhand smoke (SHS) is a major contributor to indoor air pollution. Because it contains respiratory irritants, it may adversely influence…
BACKGROUND: Small asymptomatic lung nodules are found frequently in the course of cardiac computed tomography (CT) scanning. However, the utility…
PURPOSE: Although chronic obstructive pulmonary disease (COPD) has a major impact on physical health, the specific impact of COPD on…
BACKGROUND: Mortality risk in adult asthma is poorly understood, especially the interplay among race, disease severity, and health care access…
The authors' objective was to analyze the impact of respiratory impairment on the risk of physical functional limitations among adults…
BACKGROUND:Ozone has heterogeneous effects on lung function. We investigated whether obesity and airways hyperresponsiveness (AHR) modify the acute effects of…
RATIONALE:Decreased lung function has been linked to increased inflammation and oxidative stress. Statins have demonstrated antiinflammatory and antioxidant properties.OBJECTIVES:We investigated…
BACKGROUND: Morbidity from asthma disproportionately affects black people. Whether this excess morbidity is fully explained by differences in asthma severity,…
PURPOSE: Case reports suggest that leukotriene modifier use may be associated with the onset of Churg-Strauss syndrome (CSS). Using pooled…
BACKGROUND: Normal endothelial function depends on nitric oxide (NO) release by endothelial cells. Asymmetric dimethylarginine (ADMA), by competing with L-arginine,…
BACKGROUND: Low body mass index has been associated with increased mortality in severe COPD. The impact of body composition earlier…
Despite having a chronic respiratory disease, adults with asthma do not appear to selectively avoid smoking. We used data from…
BACKGROUND: Psychosocial factors play an important role in outcomes of asthma. Perceived control, a measure of patients' beliefs about their…
PURPOSE: We aimed to elucidate the prevalence of and risk factors for work disability in severe adult asthma and to…
BACKGROUND: African American smokers are more likely to experience tobacco-related morbidity and mortality than European American smokers, and higher rates…
BACKGROUND: Because they have chronic airway inflammation, adults with asthma could have symptomatic exacerbation after exposure to second hand smoke…
STUDY OBJECTIVES: To determine the relationship between diagnosed and treated COPD and the incidence of cardiovascular disease (CVD) hospitalization and…
OBJECTIVE: To evaluate the longitudinal impact of asthma specialist care on the risk of emergency department (ED) visits and hospitalization…
OBJECTIVE: To assess barriers to physician participation in cancer clinical trials among oncologists, oncology leaders, and health plan leaders. STUDY…
A cohort of 197 Medicaid-insured patients presenting for treatment in Kaiser Permanente's outpatient chemical dependency treatment program were observed the…
BACKGROUND: There appears to be an asthma epidemic in the United States and other developed countries, with increasing prevalence and…
OBJECTIVE: To estimate the incidence of Churg-Strauss syndrome (CSS) among a large population of asthma drug users. METHODS: A retrospective…
BACKGROUND: Psychological disorders, including depression, are common in adults with asthma. Although depression is treatable, its impact on longitudinal asthma…
OBJECTIVE: To examine temporal trends in the rates of severe bronchopulmonary dysplasia (BPD) between 1994 and 2002. STUDY DESIGN: In…
OBJECTIVES: To develop a model to predict which newborns >/=34 weeks gestation with respiratory distress will die or will require…
PURPOSE: Our aim was to identify individuals with Churg-Strauss syndrome (CSS) among asthma drug users, based on patterns of diagnostic…
BACKGROUND: Inflammation plays a role in the pathogenesis of athero-thrombosis. Because of the chronic, inflammatory nature of asthma, we hypothesized…
OBJECTIVE: To describe rates and identify risk factors for rehospitalization during the first year of life among infants with bronchopulmonary…
INTRODUCTION: Many proponents of hospice care believe that this service is underutilized. OBJECTIVE: To determine physicians' perceptions of hospice utilization…
SETTING: Kaiser Permanente Northern California dialysis registry. OBJECTIVE: To examine the incidence of tuberculosis disease (TB) in a large, insured…
OBJECTIVE: The purpose of this study was to determine whether an unengaged vertex significantly increased the risk of cesarean delivery…
HYPOTHESIS: Patients aged 70 years and older undergo proportionately more emergency and permanent fecal ostomy procedures than younger patients. Older…
STUDY OBJECTIVE: We determine the reproducibility of increased blood pressure measurements among adults in the emergency department or minor injury…
BACKGROUND: Although health-related quality of life (HRQL) has been increasingly used as an outcome in asthma, its utility for identifying…
This paper discusses the results from the field test of a multimedia health education intervention, designed to provide breast cancer…
Although many Medicaid beneficiaries receive health care through commercial health maintenance organizations (HMOs), the impact of private managed care on…
We tested whether asthma diagnosis is associated with weight gain and physical activity in 4,547 18 to 30-yr-old African American…
Ultrasound is the imaging study of choice for the detection of gallstones, but ultrasound through medical imaging departments (MI Sono)…
OBJECTIVE: Given the directive of the American Academy of Pediatrics to test children for tuberculosis (TB) only if they are…
CONTEXT: ICU patients are often rendered incapable of making decisions as a result of their illness. The accuracy with which…
The results of this case-control study conducted at a large HMO support the notion that severe asthma may be associated…
The liberal use of ultrasonography has been advocated in patients with first trimester cramping or bleeding to avoid misdiagnosis of…
BACKGROUND: The number of shots in the childhood immunization schedule has been increasing and is likely to continue to increase…
STUDY OBJECTIVE: To examine the association of cigarette smoking and alcohol consumption with hospital presentation of ARDS in a well-defined,…
OBJECTIVE: To examine the relation of the facial nerve to the only identifiable surgical landmark in the external auditory canal…
BACKGROUND: The sale of cigars in the United States has been increasing for the past six years. Cigar smoking is…
BACKGROUND: Cystic fibrosis (CF) is the most common life-shortening genetic disorder among white individuals worldwide. Previous estimates of the costs…
OBJECTIVE: In a health maintenance organization population, we determined the incidence of early-onset (at less than or equal to 7…
To evaluate the function and effectiveness of a multidisciplinary team for managing human immunodeficiency virus (HIV) infection, we conducted a…