Comparison of haemoglobin level between high altitude people and low altitude people

Hafiza Saima Pracha, Mumtaz Hassan, Shahid Nazir, Muhammad Farhan Khan, Baber Ali, Iram Amir


Background: Hemoglobin is the iron holding and oxygen carrying protein found inside the red blood cells. Studies have been done on Hb level variations in gender, race and region but no comparative study on different altitude effects in Pakistan is reported. Comparison of Hemoglobin level between people living at high altitude and low altitude was done in this study. Samples from district Skardu Gilgit-Baltistan, Pakistan were used as high-altitude samples and samples from district Lahore, Pakistan were utilized as low altitude samples. Samples were obtained from those people who don’t have any haemoglobinopathies.

Methods:  50 blood samples were collected for this study; 25 individuals were from low altitude level and 25 of high-altitude level. Estimation of hemoglobin concentration was done by Cyanmethemoglobin method to compare the individuals HB from low altitude with high altitude.

Results: All the blood samples were properly analyzed, and the results extracted from the samples, living at low altitude were compared with those living at high altitude. Mean and standard deviation values were calculated, and they found to be different for both populations, people at high altitude and the people living at low altitude. 25 residents of high altitude showed following results of hemoglobin: mean=15.0 and SD=0.632. On the other hand, 25 individuals of low altitude revealed these results: mean=14.53 and SD=0.633.

Conclusion: There was a significant difference in Hb level in blood at high altitude (7500 feet) and low altitude (711 feet from sea level) P=0.004. 


Keywords: Hemoglobin, Standard Deviation

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