Effect of Altitude on Hemoglobin and Red Blood Cell Indices in Adults in Different Regions of Saudi Arabia.
CBC
high altitude
reference interval
Journal
International journal of general medicine
ISSN: 1178-7074
Titre abrégé: Int J Gen Med
Pays: New Zealand
ID NLM: 101515487
Informations de publication
Date de publication:
2022
2022
Historique:
received:
12
01
2022
accepted:
15
03
2022
entrez:
7
4
2022
pubmed:
8
4
2022
medline:
8
4
2022
Statut:
epublish
Résumé
Complete blood count (CBC) is a commonly used blood test for health checks. This study was conducted to compare CBC from two different altitudes and from sea-level populations in order to suggest correction factor for altitude-related increment on the hemoglobin and red blood cell indices. In this retrospective lab records study, large datasets of CBCs over 5-year period were screened from three different regions of Saudi Arabia, Jeddah (a coastal city), Taif City located at 1879 m above sea level, and Abha City at located 2270 m above sea level. Descriptive analysis and significance testing of the CBC variables at different altitude were compared. A total of 57,059 participants were included for final analysis. Mean hemoglobin (Hb) concentration (g/dL) was 14.81 for men and 13.77 for women at sea level, whereas Hb concentrations were 15.35 and 14.19 for men and women residing at Taif City, respectively, and 15.40 and 14.71 for men and women at Abha City, respectively. Hemoglobin and other red cell indices were significantly different among men and women across different altitude, except for mean corpuscular volume (MCV). The MCV 95 Although altitude-associated increment in Hb concentration was evident in both men and women, it was lower than as suggested by World Health Organization and Centers for Disease and Control. Results of this study can also be used to derive new CBC reference intervals for Saudi residents living at high altitude. A correction factor (ΔHb) of 0.30 g/dL per 1000 m altitude is suggested to be used in adult population living at high altitudes in Saudi Arabia which should help better define anemia and polycythemia at altitude.
Identifiants
pubmed: 35386861
doi: 10.2147/IJGM.S358139
pii: 358139
pmc: PMC8979750
doi:
Types de publication
Journal Article
Langues
eng
Pagination
3559-3565Informations de copyright
© 2022 Alkhaldy et al.
Déclaration de conflit d'intérêts
The authors report no conflicts of interest in this work.
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