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Usability Testing of a Reusable Pulse Oximeter Probe Developed for Health-Care Workers Caring for Children < 5 Years Old in Low-Resource Settings
Hypoxemia measured by pulse oximetry predicts child pneumonia mortality in low-resource settings (LRS). Existing pediatric oximeter probes are prohibitively expensive and/or difficult to use, limiting LRS implementation. Using a human-centered design, we developed a low-cost, reusable pediatric oxim...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The American Society of Tropical Medicine and Hygiene
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6159595/ https://www.ncbi.nlm.nih.gov/pubmed/30141389 http://dx.doi.org/10.4269/ajtmh.18-0016 |
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author | Boyd, Nicholas King, Carina Walker, Isabeau A. Zadutsa, Beatiwel Bernstein, Mike Ahmed, Salahuddin Roy, Arunangshu Hanif, Abu A.M. Saha, Subal C. Majumder, Kingshuk Nambiar, Bejoy Colbourn, Tim Makwenda, Charles Baqui, Abdullah H. Wilson, Iain McCollum, Eric D. |
author_facet | Boyd, Nicholas King, Carina Walker, Isabeau A. Zadutsa, Beatiwel Bernstein, Mike Ahmed, Salahuddin Roy, Arunangshu Hanif, Abu A.M. Saha, Subal C. Majumder, Kingshuk Nambiar, Bejoy Colbourn, Tim Makwenda, Charles Baqui, Abdullah H. Wilson, Iain McCollum, Eric D. |
author_sort | Boyd, Nicholas |
collection | PubMed |
description | Hypoxemia measured by pulse oximetry predicts child pneumonia mortality in low-resource settings (LRS). Existing pediatric oximeter probes are prohibitively expensive and/or difficult to use, limiting LRS implementation. Using a human-centered design, we developed a low-cost, reusable pediatric oximeter probe for LRS health-care workers (HCWs). Here, we report probe usability testing. Fifty-one HCWs from Malawi, Bangladesh, and the United Kingdom participated, and seven experts provided reference measurements. Health-care workers and experts measured the peripheral arterial oxyhemoglobin saturation (SpO(2)) independently in < 5 year olds. Health-care worker measurements were classed as successful if recorded in 5 minutes (or shorter) and physiologically appropriate for the child, using expert measurements as the reference. All expert measurements were considered successful if obtained in < 5 minutes. We analyzed the proportion of successful SpO(2) measurements obtained in < 1, < 2, and < 5 minutes and used multivariable logistic regression to predict < 1 minute successful measurements. We conducted four testing rounds with probe modifications between rounds, and obtained 1,307 SpO(2) readings. Overall, 67% (876) of measurements were successful and achieved in < 1 minute, 81% (1,059) < 2 minutes, and 90% (1,181) < 5 minutes. Compared with neonates, increasing age (infant adjusted odds ratio [aOR]; 1.87, 95% confidence interval [CI]: 1.16, 3.02; toddler aOR: 4.33, 95% CI: 2.36, 7.97; child aOR; 3.90, 95% CI: 1.73, 8.81) and being asleep versus being calm (aOR; 3.53, 95% CI: 1.89, 6.58), were associated with < 1 minute successful measurements. In conclusion, we designed a novel, reusable pediatric oximetry probe that was effectively used by LRS HCWs on children. This probe may be suitable for LRS implementation. |
format | Online Article Text |
id | pubmed-6159595 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The American Society of Tropical Medicine and Hygiene |
record_format | MEDLINE/PubMed |
spelling | pubmed-61595952018-10-15 Usability Testing of a Reusable Pulse Oximeter Probe Developed for Health-Care Workers Caring for Children < 5 Years Old in Low-Resource Settings Boyd, Nicholas King, Carina Walker, Isabeau A. Zadutsa, Beatiwel Bernstein, Mike Ahmed, Salahuddin Roy, Arunangshu Hanif, Abu A.M. Saha, Subal C. Majumder, Kingshuk Nambiar, Bejoy Colbourn, Tim Makwenda, Charles Baqui, Abdullah H. Wilson, Iain McCollum, Eric D. Am J Trop Med Hyg Articles Hypoxemia measured by pulse oximetry predicts child pneumonia mortality in low-resource settings (LRS). Existing pediatric oximeter probes are prohibitively expensive and/or difficult to use, limiting LRS implementation. Using a human-centered design, we developed a low-cost, reusable pediatric oximeter probe for LRS health-care workers (HCWs). Here, we report probe usability testing. Fifty-one HCWs from Malawi, Bangladesh, and the United Kingdom participated, and seven experts provided reference measurements. Health-care workers and experts measured the peripheral arterial oxyhemoglobin saturation (SpO(2)) independently in < 5 year olds. Health-care worker measurements were classed as successful if recorded in 5 minutes (or shorter) and physiologically appropriate for the child, using expert measurements as the reference. All expert measurements were considered successful if obtained in < 5 minutes. We analyzed the proportion of successful SpO(2) measurements obtained in < 1, < 2, and < 5 minutes and used multivariable logistic regression to predict < 1 minute successful measurements. We conducted four testing rounds with probe modifications between rounds, and obtained 1,307 SpO(2) readings. Overall, 67% (876) of measurements were successful and achieved in < 1 minute, 81% (1,059) < 2 minutes, and 90% (1,181) < 5 minutes. Compared with neonates, increasing age (infant adjusted odds ratio [aOR]; 1.87, 95% confidence interval [CI]: 1.16, 3.02; toddler aOR: 4.33, 95% CI: 2.36, 7.97; child aOR; 3.90, 95% CI: 1.73, 8.81) and being asleep versus being calm (aOR; 3.53, 95% CI: 1.89, 6.58), were associated with < 1 minute successful measurements. In conclusion, we designed a novel, reusable pediatric oximetry probe that was effectively used by LRS HCWs on children. This probe may be suitable for LRS implementation. The American Society of Tropical Medicine and Hygiene 2018-10 2018-08-20 /pmc/articles/PMC6159595/ /pubmed/30141389 http://dx.doi.org/10.4269/ajtmh.18-0016 Text en © The American Society of Tropical Medicine and Hygiene This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Articles Boyd, Nicholas King, Carina Walker, Isabeau A. Zadutsa, Beatiwel Bernstein, Mike Ahmed, Salahuddin Roy, Arunangshu Hanif, Abu A.M. Saha, Subal C. Majumder, Kingshuk Nambiar, Bejoy Colbourn, Tim Makwenda, Charles Baqui, Abdullah H. Wilson, Iain McCollum, Eric D. Usability Testing of a Reusable Pulse Oximeter Probe Developed for Health-Care Workers Caring for Children < 5 Years Old in Low-Resource Settings |
title | Usability Testing of a Reusable Pulse Oximeter Probe Developed for Health-Care Workers Caring for Children < 5 Years Old in Low-Resource Settings |
title_full | Usability Testing of a Reusable Pulse Oximeter Probe Developed for Health-Care Workers Caring for Children < 5 Years Old in Low-Resource Settings |
title_fullStr | Usability Testing of a Reusable Pulse Oximeter Probe Developed for Health-Care Workers Caring for Children < 5 Years Old in Low-Resource Settings |
title_full_unstemmed | Usability Testing of a Reusable Pulse Oximeter Probe Developed for Health-Care Workers Caring for Children < 5 Years Old in Low-Resource Settings |
title_short | Usability Testing of a Reusable Pulse Oximeter Probe Developed for Health-Care Workers Caring for Children < 5 Years Old in Low-Resource Settings |
title_sort | usability testing of a reusable pulse oximeter probe developed for health-care workers caring for children < 5 years old in low-resource settings |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6159595/ https://www.ncbi.nlm.nih.gov/pubmed/30141389 http://dx.doi.org/10.4269/ajtmh.18-0016 |
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