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Park DE, Watson NL, Focht C, Feikin D, Hammitt LL, Brooks WA, Howie SRC, Kotloff KL, Levine OS, Madhi SA, Murdoch DR, O'Brien KL, Scott JAG, Thea DM, Amorninthapichet T, Awori J, Bunthi C, Ebruke B, Elhilali M, Higdon M, Hossain L, Jahan Y, Moore DP, Mulindwa J, Mwananyanda L, Naorat S, Prosperi C, Thamthitiwat S, Verwey C, Jablonski KA, Power MC, Young HA, Deloria Knoll M, McCollum ED. Digitally recorded and remotely classified lung auscultation compared with conventional stethoscope classifications among children aged 1-59 months enrolled in the Pneumonia Etiology Research for Child Health (PERCH) case-control study. BMJ Open Respir Res 2022; 9:9/1/e001144. [PMID: 35577452 PMCID: PMC9115042 DOI: 10.1136/bmjresp-2021-001144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 04/28/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Diagnosis of pneumonia remains challenging. Digitally recorded and remote human classified lung sounds may offer benefits beyond conventional auscultation, but it is unclear whether classifications differ between the two approaches. We evaluated concordance between digital and conventional auscultation. METHODS We collected digitally recorded lung sounds, conventional auscultation classifications and clinical measures and samples from children with pneumonia (cases) in low-income and middle-income countries. Physicians remotely classified recordings as crackles, wheeze or uninterpretable. Conventional and digital auscultation concordance was evaluated among 383 pneumonia cases with concurrently (within 2 hours) collected conventional and digital auscultation classifications using prevalence-adjusted bias-adjusted kappa (PABAK). Using an expanded set of 737 cases that also incorporated the non-concurrently collected assessments, we evaluated whether associations between auscultation classifications and clinical or aetiological findings differed between conventional or digital auscultation using χ2 tests and logistic regression adjusted for age, sex and site. RESULTS Conventional and digital auscultation concordance was moderate for classifying crackles and/or wheeze versus neither crackles nor wheeze (PABAK=0.50), and fair for crackles-only versus not crackles-only (PABAK=0.30) and any wheeze versus no wheeze (PABAK=0.27). Crackles were more common on conventional auscultation, whereas wheeze was more frequent on digital auscultation. Compared with neither crackles nor wheeze, crackles-only on both conventional and digital auscultation was associated with abnormal chest radiographs (adjusted OR (aOR)=1.53, 95% CI 0.99 to 2.36; aOR=2.09, 95% CI 1.19 to 3.68, respectively); any wheeze was inversely associated with C-reactive protein >40 mg/L using conventional auscultation (aOR=0.50, 95% CI 0.27 to 0.92) and with very severe pneumonia using digital auscultation (aOR=0.67, 95% CI 0.46 to 0.97). Crackles-only on digital auscultation was associated with mortality compared with any wheeze (aOR=2.70, 95% CI 1.12 to 6.25). CONCLUSIONS Conventional auscultation and remotely-classified digital auscultation displayed moderate concordance for presence/absence of wheeze and crackles among cases. Conventional and digital auscultation may provide different classification patterns, but wheeze was associated with decreased clinical severity on both.
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Affiliation(s)
- Daniel E Park
- Department of Environmental and Occupational Health, The George Washington University, Washington, District of Columbia, USA
| | | | | | - Daniel Feikin
- Department of International Health, Johns Hopkins University International Vaccine Access Center, Baltimore, Maryland, USA
| | - Laura L Hammitt
- Department of International Health, Johns Hopkins University International Vaccine Access Center, Baltimore, Maryland, USA,Kenya Medical Research Institute - Wellcome Trust Research Programme, Kilifi, Kenya
| | - W Abdullah Brooks
- International Centre for Diarrhoeal Disease Research Bangladesh, Dhaka and Matlab, Bangladesh,Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Stephen R C Howie
- Medical Research Council Unit, Basse, Gambia,Department of Paediatrics, The University of Auckland, Auckland, New Zealand
| | - Karen L Kotloff
- Department of Pediatrics, University of Maryland Center for Vaccine Development, Baltimore, Maryland, USA
| | - Orin S Levine
- Department of International Health, Johns Hopkins University International Vaccine Access Center, Baltimore, Maryland, USA,Bill & Melinda Gates Foundation, Seattle, Washington, USA
| | - Shabir A Madhi
- South African Medical Research Council Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand, Johannesburg, Gauteng, South Africa,Department of Science and Innovation/National Research Foundation: Vaccine Preventable Diseases Unit, University of the Witwatersrand, Johannesburg, Gauteng, South Africa
| | - David R Murdoch
- Department of Pathology and Biomedical Science, University of Otago, Christchurch, New Zealand,Microbiology Unit, Canterbury Health Laboratories, Christchurch, New Zealand
| | - Katherine L O'Brien
- Department of International Health, Johns Hopkins University International Vaccine Access Center, Baltimore, Maryland, USA
| | - J Anthony G Scott
- Kenya Medical Research Institute - Wellcome Trust Research Programme, Kilifi, Kenya,Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Donald M Thea
- Department of Global Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | | | - Juliet Awori
- Kenya Medical Research Institute - Wellcome Trust Research Programme, Kilifi, Kenya
| | - Charatdao Bunthi
- Division of Global Health Protection, Thailand Ministry of Public Health – US CDC Collaboration, Royal Thai Government Ministry of Public Health, Bangkok, Thailand
| | - Bernard Ebruke
- Medical Research Council Unit, Basse, Gambia,International Foundation Against Infectious Disease in Nigeria, Abuja, Nigeria
| | - Mounya Elhilali
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Melissa Higdon
- Department of International Health, Johns Hopkins University International Vaccine Access Center, Baltimore, Maryland, USA
| | - Lokman Hossain
- International Centre for Diarrhoeal Disease Research Bangladesh, Dhaka and Matlab, Bangladesh
| | - Yasmin Jahan
- International Centre for Diarrhoeal Disease Research Bangladesh, Dhaka and Matlab, Bangladesh
| | - David P Moore
- South African Medical Research Council Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand, Johannesburg, South Africa,Department of Paediatrics and Child Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Justin Mulindwa
- Department of Paediatrics and Child Health, University Teaching Hospital, Lusaka, Zambia
| | - Lawrence Mwananyanda
- Department of Global Health, Boston University School of Public Health, Boston, Massachusetts, USA,Right to Care - Zambia, Lusaka, Zambia
| | | | - Christine Prosperi
- Department of International Health, Johns Hopkins University International Vaccine Access Center, Baltimore, Maryland, USA
| | - Somsak Thamthitiwat
- Division of Global Health Protection, Thailand Ministry of Public Health – US CDC Collaboration, Royal Thai Government Ministry of Public Health, Nonthaburi, Thailand
| | - Charl Verwey
- South African Medical Research Council Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand, Johannesburg, Gauteng, South Africa,Department of Paediatrics and Child Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Melinda C Power
- Department of Epidemiology, The George Washington University, Washington, District of Columbia, USA
| | - Heather A Young
- Department of Epidemiology, The George Washington University, Washington, District of Columbia, USA
| | - Maria Deloria Knoll
- Department of International Health, Johns Hopkins University International Vaccine Access Center, Baltimore, Maryland, USA
| | - Eric D McCollum
- Global Program in Respiratory Sciences, Eudowood Division of Pediatric Respiratory Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland, USA,Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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Alao ME, Perin J, Brooks WA, Hossain L, Goswami D, Zaman K, Yunus M, Khan MA, Jahan Y, Ahmed D, Slavkovich V, Graziano J, Prosperi C, Higdon M, Deloria-Knoll M, O' Brien KL, George CM. Urinary arsenic is associated with wasting and underweight status in young children in rural Bangladesh. Environ Res 2021; 195:110025. [PMID: 32791251 DOI: 10.1016/j.envres.2020.110025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/21/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Deficits in child growth are associated with poor cognitive outcomes and an increased risk for infection and mortality globally. One hundred forty million people are chronically exposed to arsenic from contaminated drinking water worldwide. While arsenic exposure has been associated with cognitive developmental delays in children, there is limited research on the association between arsenic exposure and growth deficits in young children. PURPOSE The objective of this study was to assess the association between chronic arsenic exposure and deficits in growth among children under 5 years in a rural setting in Bangladesh. METHODS Urinary arsenic measurements were collected from 465 children between the ages of 28 days-59 months in rural Matlab, Bangladesh, and analyzed by graphite furnace atomic absorption. Height and weight measurements were collected from children according to World Health Organization child growth standards. A z-score cutoff2 standard deviations below the mean was used to define stunting (height-for-age z-score), underweight (weight-for-age z-score), and wasting (weight-for-height z-score). RESULTS Children under 5 years with urinary arsenic concentrations in the third tertile (greater than 31 μg per liter (μg/L)) had a two times higher odds of being underweight after adjustment for age, creatinine, paternal education, breastfeeding, number of individuals using the same sleeping room, and physician-diagnosed pneumonia (Odds Ratio (OR): 2.29 (95% Confidence Interval (CI): 1.16, 4.52)). Children under 2 years of age had a two times higher odds of being wasted after adjustment for age, creatinine, paternal education, breastfeeding, number of individuals using the same sleeping room, and physician-diagnosed pneumonia (OR: 2.85 (95% CI: 1.18, 6.89)). CONCLUSIONS These findings suggest that arsenic exposure is associated with an increased odds of being wasted and underweight among young children in rural Bangladesh.
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Affiliation(s)
- Mary E Alao
- Department of International Health, Program in Global Disease Epidemiology and Control, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Jamie Perin
- Department of International Health, Program in Global Disease Epidemiology and Control, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - W Abdullah Brooks
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Lokman Hossain
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Doli Goswami
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Khalequzzaman Zaman
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Mohammad Yunus
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md Alfazal Khan
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Yasmin Jahan
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Dilruba Ahmed
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Vesna Slavkovich
- Department of Environmental Health, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Joseph Graziano
- Department of Environmental Health, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Christine Prosperi
- Department of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Melissa Higdon
- Department of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Maria Deloria-Knoll
- Department of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Katherine L O' Brien
- Department of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Christine Marie George
- Department of International Health, Program in Global Disease Epidemiology and Control, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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George CM, Brooks WA, Graziano JH, Nonyane BAS, Hossain L, Goswami D, Zaman K, Yunus M, Khan AF, Jahan Y, Ahmed D, Slavkovich V, Higdon M, Deloria-Knoll M, O' Brien KL. Arsenic exposure is associated with pediatric pneumonia in rural Bangladesh: a case control study. Environ Health 2015; 14:83. [PMID: 26497043 PMCID: PMC4619558 DOI: 10.1186/s12940-015-0069-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 10/05/2015] [Indexed: 05/04/2023]
Abstract
BACKGROUND Pneumonia is the leading cause of death for children under 5 years of age globally, making research on modifiable risk factors for childhood pneumonia important for reducing this disease burden. Millions of children globally are exposed to elevated levels of arsenic in drinking water. However, there is limited data on the association between arsenic exposure and respiratory infections, particularly among pediatric populations. METHODS This case control study of 153 pneumonia cases and 296 controls 28 days to 59 months of age in rural Bangladesh is the first to assess whether arsenic exposure is a risk factor for pneumonia in a pediatric population. Cases had physician diagnosed World Health Organization defined severe or very severe pneumonia. Urine collected during hospitalization (hospital admission time point) and 30 days later (convalescent time point) from cases and a single specimen from community controls was tested for urinary arsenic by graphite furnace atomic absorption. RESULTS The odds for pneumonia was nearly double for children with urinary arsenic concentrations higher than the first quartile (≥6 μg/L) at the hospital admission time point (Odd Ratio (OR):1.88 (95% Confidence Interval (CI): 1.01, 3.53)), after adjustment for urinary creatinine, weight for height, breastfeeding, paternal education, age, and number of people in the household. This was consistent with findings at the convalescent time point where the adjusted OR for children with urinary arsenic concentrations greater than the first quartile (≥6 μg/L) was 2.32 (95% CI: 1.33, 4.02). CONCLUSION We observed a nearly two times higher odds of pneumonia for children with creatinine adjusted urinary arsenic concentrations greater than the first quartile (≥6 μg/L) at the hospital admission time point. This novel finding suggests that low to moderate arsenic exposure may be a risk factor for pneumonia in children under 5 years of age.
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Affiliation(s)
- Christine Marie George
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
- Department of International Health, Program in Global Disease Epidemiology and Control, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Room E5535, Baltimore, MD, 21205-2103, USA.
| | - W Abdullah Brooks
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Joseph H Graziano
- Department of Environmental Health, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - Bareng A S Nonyane
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Lokman Hossain
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Doli Goswami
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Khalequzzaman Zaman
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Mohammad Yunus
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Al Fazal Khan
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Yasmin Jahan
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Dilruba Ahmed
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Vesna Slavkovich
- Department of Environmental Health, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - Melissa Higdon
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Maria Deloria-Knoll
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Katherine L O' Brien
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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