Reference values for oxygen saturation from sea level to the highest human habitation in the Andes in acclimatised persons

Jose Rojas-Camayo, Christian Richard Mejia, David Callacondo, Jennifer A. Dawson, Margarita Posso, Cesar Alberto Galvan, Nadia Davila-Arango, Erick Anibal Bravo, Viky Yanina Loescher, Magaly Milagros Padilla-Deza, Nora Rojas-Valero, Gary Velasquez-Chavez, Jose Clemente, Guisela Alva-Lozada, Angel Quispe-Mauricio, Silvana Bardalez, Rami Subhi

Research output: Contribution to journalOriginal Articlepeer-review

26 Scopus citations


Oxygen saturation, measured by pulse oximetry (SpO 2), is a vital clinical measure. Our descriptive, cross-sectional study describes SpO 2 measurements from 6289 healthy subjects from age 1 to 80 years at 15 locations from sea level up to the highest permanent human habitation. Oxygen saturation measurements are illustrated as percentiles. As altitude increased, SpO 2 decreased, especially at altitudes above 2500 m. The increase in altitude had a significant impact on SpO 2 measurements for all age groups. Our data provide a reference range for expected SpO 2 measurements in people from 1 to 80 years from sea level to the highest city in the world.

Original languageAmerican English
Pages (from-to)776-778
Number of pages3
Issue number8
StateIndexed - 1 Aug 2018
Externally publishedYes

Bibliographical note

Funding Information:
1Instituto de Investigaciones de la Altura, Universidad Peruana Cayetano Heredia, Lima, Peru 2Escuela de Medicina Humana, Universidad Continental, Huancayo, Peru 3School of Medicine, Faculty of Health Sciences., Universidad Privada de Tacna., Tacna, Peru 4The Royal Women’s Hospital, Melbourne, Australia 5Department of Epidemiology and Evaluation, Hospital del Mar Medical Research Institute, Barcelona, Spain 6Centro de Referencia Nacional de Alergia, Asma e Inmunologia (CERNAAI), Instituto Nacional de Salud del Niño, Lima, Peru 7Hospital Clínico Universitario de Salamanca, Salamanca, Spain

Publisher Copyright:
© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.


  • Clinical Epidemiology


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