William Checkley

Summary

Affiliation: Johns Hopkins University
Country: USA

Publications

  1. pmc Lung ultrasound for the diagnosis of pneumonia in adults: a systematic review and meta-analysis
    Miguel A Chavez
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, 1800 Orleans Ave Suite 9121, Baltimore, MD 21205, USA
    Respir Res 15:50. 2014
  2. pmc Computerised lung sound analysis to improve the specificity of paediatric pneumonia diagnosis in resource-poor settings: protocol and methods for an observational study
    Laura E Ellington
    Division of Pulmonary and Critical Care, Johns Hopkins University, Baltimore, Maryland, USA
    BMJ Open 2:e000506. 2012
  3. pmc The Peru Urban versus Rural Asthma (PURA) Study: methods and baseline quality control data from a cross-sectional investigation into the prevalence, severity, genetics, immunology and environmental factors affecting asthma in adolescence in Peru
    Colin L Robinson
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
    BMJ Open 2:e000421. 2012
  4. pmc A cross-sectional study of determinants of indoor environmental exposures in households with and without chronic exposure to biomass fuel smoke
    Suzanne L Pollard
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, 1800 Orleans Ave, Suite 9121, Baltimore, MD, USA
    Environ Health 13:21. 2014
  5. doi Effect of urbanisation on the relationship between total serum IgE and asthma
    William Checkley
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
    Eur Respir J 41:1074-81. 2013
  6. pmc Feasibility intervention trial of two types of improved cookstoves in three resource-limited settings: study protocol for a randomized controlled trial
    Elizabeth Klasen
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, 1800 Orleans Ave, Suite 9121, Baltimore, MD 21205, USA
    Trials 14:327. 2013
  7. pmc Role of exhaled nitric oxide as a predictor of atopy
    Karina M Romero
    Asociacion Benefica PRISMA, Lima, Peru
    Respir Res 14:48. 2013
  8. pmc Household food access and child malnutrition: results from the eight-country MAL-ED study
    Stephanie Psaki
    Fogarty International Center, National Institutes of Health, Bethesda, USA
    Popul Health Metr 10:24. 2012
  9. pmc Effects of the 1997-1998 El Niño episode on community rates of diarrhea
    Adam Bennett
    Program in Global Disease Epidemiology and Control, Department of International Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Am J Public Health 102:e63-9. 2012
  10. pmc Inference for mutually exclusive competing events through a mixture of generalized gamma distributions
    William Checkley
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
    Epidemiology 21:557-65. 2010

Detail Information

Publications40

  1. pmc Lung ultrasound for the diagnosis of pneumonia in adults: a systematic review and meta-analysis
    Miguel A Chavez
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, 1800 Orleans Ave Suite 9121, Baltimore, MD 21205, USA
    Respir Res 15:50. 2014
    ..We conducted a meta-analysis to summarize existing evidence of the diagnostic accuracy of LUS for pneumonia in adults...
  2. pmc Computerised lung sound analysis to improve the specificity of paediatric pneumonia diagnosis in resource-poor settings: protocol and methods for an observational study
    Laura E Ellington
    Division of Pulmonary and Critical Care, Johns Hopkins University, Baltimore, Maryland, USA
    BMJ Open 2:e000506. 2012
    ..The authors aim to investigate the use of electronic auscultation to improve the specificity of the current WHO algorithm in developing countries...
  3. pmc The Peru Urban versus Rural Asthma (PURA) Study: methods and baseline quality control data from a cross-sectional investigation into the prevalence, severity, genetics, immunology and environmental factors affecting asthma in adolescence in Peru
    Colin L Robinson
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
    BMJ Open 2:e000421. 2012
    ..The authors sought to characterise the epidemiology of asthma in Peru in two regions with disparate degrees of urbanisation. In this manuscript, the authors summarise the study design and implementation...
  4. pmc A cross-sectional study of determinants of indoor environmental exposures in households with and without chronic exposure to biomass fuel smoke
    Suzanne L Pollard
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, 1800 Orleans Ave, Suite 9121, Baltimore, MD, USA
    Environ Health 13:21. 2014
    ..A secondary objective was to identify chronic vs. acute changes in cardiopulmonary biomarkers associated with exposure to biomass smoke...
  5. doi Effect of urbanisation on the relationship between total serum IgE and asthma
    William Checkley
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
    Eur Respir J 41:1074-81. 2013
    ..0 (95% CI 0.7-1.4) per log unit increase in total serum IgE, respectively. Total serum IgE was associated with atopic asthma but not with non-atopic asthma. Urbanisation did not appear to be an effect modifier of this relationship...
  6. pmc Feasibility intervention trial of two types of improved cookstoves in three resource-limited settings: study protocol for a randomized controlled trial
    Elizabeth Klasen
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, 1800 Orleans Ave, Suite 9121, Baltimore, MD 21205, USA
    Trials 14:327. 2013
    ....
  7. pmc Role of exhaled nitric oxide as a predictor of atopy
    Karina M Romero
    Asociacion Benefica PRISMA, Lima, Peru
    Respir Res 14:48. 2013
    ..Therefore, FeNO may be a useful predictor of atopy in the general population. We sought to determine the diagnostic accuracy of FeNO in predicting atopy in a population-based study...
  8. pmc Household food access and child malnutrition: results from the eight-country MAL-ED study
    Stephanie Psaki
    Fogarty International Center, National Institutes of Health, Bethesda, USA
    Popul Health Metr 10:24. 2012
    ..We investigate the relationship between household food access, one component of food security, and indicators of nutritional status in early childhood across eight country sites...
  9. pmc Effects of the 1997-1998 El Niño episode on community rates of diarrhea
    Adam Bennett
    Program in Global Disease Epidemiology and Control, Department of International Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Am J Public Health 102:e63-9. 2012
    ....
  10. pmc Inference for mutually exclusive competing events through a mixture of generalized gamma distributions
    William Checkley
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
    Epidemiology 21:557-65. 2010
    ..Our objective was to determine if and how the mixture was modified in response to an intervention...
  11. ncbi Maternal vitamin A supplementation and lung function in offspring
    William Checkley
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
    N Engl J Med 362:1784-94. 2010
    ....
  12. pmc Effects of a clinical trial on mechanical ventilation practices in patients with acute lung injury
    William Checkley
    Division of Pulmonary and Critical Care, School of Medicine, The Johns Hopkins University, Baltimore, MD 21205, USA
    Am J Respir Crit Care Med 177:1215-22. 2008
    ..However, interpretations of these results generated controversy and it was unclear if this trial would change usual-care practices...
  13. pmc Multi-country analysis of the effects of diarrhoea on childhood stunting
    William Checkley
    Department of International Health, The Johns Hopkins University, Bloomberg School of Public Health, Baltimore, MD21205, USA
    Int J Epidemiol 37:816-30. 2008
    ..These observations are consistent with the hypothesis that a higher cumulative burden of diarrhoea increases the risk of stunting...
  14. ncbi Short-term weather variability in Chicago and hospitalizations for Kawasaki disease
    William Checkley
    Division of Pulmonary and Critical Care, Department of Medicine, The Johns Hopkins University, Baltimore, MD, USA
    Epidemiology 20:194-201. 2009
    ..Kawasaki disease exhibits a distinct seasonality, and short-term changes in weather may affect its occurrence...
  15. doi Effect of urbanisation on asthma, allergy and airways inflammation in a developing country setting
    Colin L Robinson
    Division of Pulmonary and Critical Care, Johns Hopkins University, 1830 Monument Street, Fifth Floor, Baltimore, MD 21205, USA
    Thorax 66:1051-7. 2011
    ..However, few studies have studied the role of urbanisation in this phenomenon. It was hypothesised that children living in a peri-urban setting in Peru have higher rates of asthma and allergy than rural counterparts...
  16. pmc Catch-up growth occurs after diarrhea in early childhood
    Stephanie A Richard
    Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Heath, Johns Hopkins University, Baltimore, MD Fogarty International Center, National Institutes of Health, Bethesda, MD
    J Nutr 144:965-71. 2014
    ..Extending diarrhea-free periods may increase the likelihood of catch-up growth and decrease the prevalence of stunting. ..
  17. ncbi Effect of water and sanitation on childhood health in a poor Peruvian peri-urban community
    William Checkley
    Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Lancet 363:112-8. 2004
    ..Inadequate water and sanitation adversely affect the health of children in developing countries. We aimed to assess the effects of water and sanitation on childhood health in a birth cohort of Peruvian children...
  18. pmc Effects of distance from a heavily transited avenue on asthma and atopy in a periurban shantytown in Lima, Peru
    Lauren M Baumann
    Division of Pulmonary and Critical Care, Johns Hopkins University, Baltimore, MD 21205, USA
    J Allergy Clin Immunol 127:875-82. 2011
    ....
  19. ncbi Effects of acute diarrhea on linear growth in Peruvian children
    William Checkley
    Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
    Am J Epidemiol 157:166-75. 2003
    ..In contrast, diarrhea after 6 months of age showed transient effects. Study results indicate that diarrhea control, especially during the first 6 months of life, is likely to improve linear growth in Peruvian children...
  20. pmc Wasting is associated with stunting in early childhood
    Stephanie A Richard
    Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
    J Nutr 142:1291-6. 2012
    ..52, 0.92 cm)]. Children with wasting, highly variable WLZ, or negative changes in WLZ are at a higher risk for linear growth retardation, although instances of wasting may not be the primary cause of stunting in developing countries...
  21. pmc Comparison of two types of epidemiological surveys aimed at collecting daily clinical symptoms in community-based longitudinal studies
    Gwenyth Lee
    Department of International Health, The Johns Hopkins University, Baltimore, MD 21205, USA
    Ann Epidemiol 20:151-8. 2010
    ..The interval in which data are collected may affect the accuracy and interpretation of results. Our objective was to compare data of reported daily clinical symptoms from surveys conducted daily versus twice-weekly surveys...
  22. pmc Early anthropometric indices predict short stature and overweight status in a cohort of Peruvians in early adolescence
    Robie Sterling
    Asociacion Benefica PRISMA, Lima, Peru
    Am J Phys Anthropol 148:451-61. 2012
    ..Interventions addressing linear growth retardation in childhood are likely to improve adolescent stature and related-health outcomes in adulthood...
  23. ncbi Chronic exposure to biomass fuel is associated with increased carotid artery intima-media thickness and a higher prevalence of atherosclerotic plaque
    Matthew S Painschab
    School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
    Heart 99:984-91. 2013
    ....
  24. doi Longitudinal assessment of high versus low levels of fractional exhaled nitric oxide among children with asthma and atopy
    Mary Elmasri
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, 1800 Orleans Ave Suite 9121, Baltimore, MD, 21205, USA
    Lung 192:305-12. 2014
    ..Increasing evidence points to atopy as a confounding factor in the interpretation of elevated FeNO. We conducted a longitudinal study to understand the clinical significance of FeNO as an inflammatory biomarker...
  25. ncbi First Detected Helicobacter pylori Infection in Infancy Modifies the Association Between Diarrheal Disease and Childhood Growth in Peru
    Devan Jaganath
    Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
    Helicobacter 19:272-9. 2014
    ..In endemic settings, Helicobacter pylori infection can occur shortly after birth and may be associated with a reduction in childhood growth...
  26. ncbi Effects of nutritional status on diarrhea in Peruvian children
    William Checkley
    Department of International Health, The Johns Hopkins School of Public Health, Baltimore, MD 21205, USA
    J Pediatr 140:210-8. 2002
    ..We conducted a 4-year (1995-1998) field study in a Peruvian peri-urban community (pueblo joven) to examine the relation between diarrhea and nutritional status in 230 children <3 years of age...
  27. doi Critical care trial design and interpretation: a primer
    Jonathan E Sevransky
    Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Baltimore, Maryland, USA
    Crit Care Med 38:1882-9. 2010
    ..Knowledge of basic principles of clinical trial design and interpretation will assist the clinician in better applying the results of these studies into clinical practice...
  28. pmc Humidity and gravimetric equivalency adjustments for nephelometer-based particulate matter measurements of emissions from solid biomass fuel use in cookstoves
    Sutyajeet Soneja
    Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Int J Environ Res Public Health 11:6400-16. 2014
    ..Furthermore, we propose new integrated RH and gravimetric conversion methods because they have one response variable (gravimetric PM2.5 concentration), do not contain an RH threshold, and is straightforward. ..
  29. pmc Revisiting the relationship of weight and height in early childhood
    Stephanie A Richard
    Department of International Health, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, MD, USA
    Adv Nutr 3:250-4. 2012
    ....
  30. pmc Epidemiology of tobacco use and dependence in adults in a poor peri-urban community in Lima, Peru
    Paul Logan Weygandt
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, Maryland, USA
    BMC Pulm Med 12:9. 2012
    ..We sought to determine the prevalence of daily smoking in a poor peri-urban community in Lima, Peru...
  31. doi Trends in hospitalizations for AIDS-associated Pneumocystis jirovecii Pneumonia in the United States (1986 to 2005)
    Colleen F Kelley
    Department of Medicine, Division of Infectious Diseases and the Emory Centerfor AIDS Research, Emory University, Atlanta, GA, USA
    Chest 136:190-7. 2009
    ....
  32. pmc The value of positive end-expiratory pressure and Fio₂ criteria in the definition of the acute respiratory distress syndrome
    Martin Britos
    National Institutes of Health Acute Respiratory Distress Syndrome Network ARDS Network Investigators, Pulmonary and Critical Care Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
    Crit Care Med 39:2025-30. 2011
    ..We also assessed effects of two study interventions on clinical outcomes in subsets of patients with mild and severe hypoxemia as defined by PaO₂/Fio₂...
  33. pmc Molecular determinants of lung development
    Edward E Morrisey
    Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
    Ann Am Thorac Soc 10:S12-6. 2013
    ..This manuscript describes the summary of the discussion along with general recommendations to overcome the gaps in knowledge in lung developmental biology...
  34. pmc Structure, process, and annual ICU mortality across 69 centers: United States Critical Illness and Injury Trials Group Critical Illness Outcomes Study
    William Checkley
    1Division of Pulmonary and Critical Care, Johns Hopkins University, Baltimore, MD 2Division of Pulmonary, Allergy, and Critical Care, Emory University, Atlanta, GA 3Division of Pulmonary and Critical Care, Intermountain Medical Center and University of Utah, Salt Lake City, UT 4Division of Pulmonary and Critical Care, University of Medicine and Dentistry of New Jersey, Newark, NJ 5Division of Pulmonary, Critical Care, and Environmental Medicine, University of Missouri Columbia, Columbia, MO 6Division of Pulmonary and Critical Care, Meharry Medical College, Nashville, TN 7Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, TN 8Division of Pulmonary, Critical Care, and Sleep Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 9Department of Surgical Critical Care, University of Maryland, Baltimore, MD 10Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Ohio State University, Cleveland, OH 11Division of Acute Care Surgery, Department of Surgery, University of Michigan Health System, Ann Arbor, MI 12Department of Anesthesiology and Critical Care Medicine, Memorial Sloan Kettering Cancer Center, USA
    Crit Care Med 42:344-56. 2014
    ..Hospital-level variations in structure and process may affect clinical outcomes in ICUs. We sought to characterize the organizational structure, processes of care, use of protocols, and standardized outcomes in a large sample of U.S. ICUs...
  35. pmc Addressing geographical variation in the progression of non-communicable diseases in Peru: the CRONICAS cohort study protocol
    J Jaime Miranda
    CRONICAS Center of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru
    BMJ Open 2:e000610. 2012
    ....
  36. pmc Beyond mortality: future clinical research in acute lung injury
    Roger G Spragg
    Division of Lung Diseases, National Heart, Lung, and Blood Institute NIH, 6701 Rockledge Drive, Bethesda, MD 20892 7952, USA
    Am J Respir Crit Care Med 181:1121-7. 2010
    ....
  37. pmc Computerized lung sound analysis as diagnostic aid for the detection of abnormal lung sounds: a systematic review and meta-analysis
    Arati Gurung
    Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
    Respir Med 105:1396-403. 2011
    ..Electronic auscultation and automated classification of recorded lung sounds may help prevent some of these shortcomings...
  38. ncbi Association between respiratory tract methicillin-resistant Staphylococcus aureus and survival in cystic fibrosis
    Elliott C Dasenbrook
    Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Case Western Reserve University School of Medicine and University Hospitals Case Medical Center, Cleveland, Ohio 44106 5067, USA
    JAMA 303:2386-92. 2010
    ..Because the time between infection with bacteria in CF and death can be decades, observational studies with long periods of follow-up are well suited to address the current gap in knowledge...
  39. ncbi A cleaning and calibration method for the SpiroPro portable spirometer's pneumotachometer tube in a remote field study
    Matthew R Baldwin
    Division of Pulmonary, Allergy, and Critical Care, College of Physicians and Surgeons, Columbia University, New York, NY, USA
    Respir Care 55:443-52. 2010
    ..We developed a systematic method of cleaning and calibration-checking for the pneumotachometer tube of the SpiroPro portable spirometer; this method maximized spirometry accuracy in a population-based study in a remote area of Nepal...
  40. pmc Epidemiologic differences between cyclosporiasis and cryptosporidiosis in Peruvian children
    Caryn Bern
    Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30341, USA
    Emerg Infect Dis 8:581-5. 2002
    ..Cryptosporidiosis was more frequent in children from houses without a latrine or toilet. Cyclosporiasis was associated with ownership of domestic animals, especially birds, guinea pigs, and rabbits...