Analysis of clinical characteristics of hearing loss in diabetes mellitus patients

doi:10.3969/j.issn.1006-7795.2015.01.016

Abstract

Abstract: Objective To analyze the differences of hearing function between diabetic and healthy patients, and investigate the factors which affect hearing among diabetics.Methods Questionnaires and pure tone audiometry were performed in 110 patients with type 2 diabetes mellitus who visited Beijing Tongren Hospital, Capital Medical University from October 2011 to December 2013, and compared with 40 age- and sex-matched controls. The patients were categorized into groups according to gender, age, duration of diabetes and glycemic control level. Results In all of the 110 subjects with diabetes, 31 cases complained of hearing loss, pure tone audiometry also confirmed the presence of hearing loss; while 79 cases had normal hearing, 43 cases (54.4%) of them experienced varying degrees of hearing loss. Hearing threshold in each frequency of diabetic group was significantly higher than the normal group, the difference was statistically significant (P=0.000). And the average hearing levels were significantly lower than those of the control group (P=0.000). The proportion of hearing loss for male (46 /60, 76.7%) was significantly higher than that of female (28/50, 56%, P=0.021);the proportion of subjects with hearing loss for all ages, those aged > 40 years (60%, 60.5%, 88.1%) were significantly higher than that of diabetics aged ≤ 40 years (16.7%, 25%, P=0.001). The prevalence of hearing loss for duration with diabetes ≥ 10 years (45/56, 80.4%) was significantly higher than those < 5 years (16/29, 55.2%) and 5≤those < 10 years (13/25, 52.0%, P=0.006). The differences of hearing loss in varied glycemic control levels were not statistically significant (P=0.465). Conclusion There is a higher risk of damage to auditory function in diabetic patients. The patient's subjective feeling does not reflect their hearing accurately. The occurrence of hearing loss is related with duration of diabetes regardless the level of glycemic control.

Key words: diabetes mellitus, hearing loss, relevant factors

CLC Number:

Gong Jing, Duan Jinping, Liu Bo, Yang Yi, Zhou Yun, Zhuang Xiaoming, Liu Gang, Jin Xin. Analysis of clinical characteristics of hearing loss in diabetes mellitus patients[J]. Journal of Capital Medical University, 2015, 36(1): 84-89.

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