ABO BLOOD GROUP AND HEARING LOSS; A CORELATIVE STUDY

Abstract

BACKGROUND: Hearing is one of the most important especial sense which is used for communication with the external world. Disability to properly perceive sound leads to anxiety and depression due to poor communication in routine life. There are different causes of hearing loss which may lead to either conductive, sensorineural and mixed hearing loss. Different researchers believe that blood groups have a strong association with hearing loss.

OBJECTIVES: The aim of this study was to investigate the relationship between blood group and hearing loss.

METHODOLOGY: This cross sectional study was carried out in the Department of ENT of Liaquat University Hospital Hyderabad from June 2023 –September 2023.Total 596 participants were selected, 330 were male and 266 were female, who came in the ENT OPD with the complain of hearing impairment. Blood groups of patients were analyzed by blood agglutination method while the hearing threshold was determined by audiometer MAICO MA  39. Only sensorineural loss with auditory threshold more than 25 Decibel were included in the study.

RESULTS: The present study suggests that the persons who have the O blood group have more chances of suffering from hearing loss. The P value was 0.02 in male and 0.04 in females. The Rhesus positive group was 0.7 more involved in hearing loss than Rhesus negative (ODD ratio 0.7, Likehood ratio 0.9).

CONCLUSION:

The current study conclude that blood groups have a direct association with hearing loss and O blood group is more predominant in this context.