Characteristics of cognitive impairment and its influencing factors in elderly patients with presbycusis / 中华老年医学杂志

ABSTRACT

Objective:To explore the characteristics of cognitive impairment in elderly adults with deafness and assess its influencing factors.Methods:This was a cross-sectional study.From July 2015 to July 2017, 117 elderly patients with age-related hearing loss(presbyacusis group)admitted to Otolaryngology Clinic of the Yangzhou University Affiliated Hospital and 97 healthy elderly adults(control group)undergoing healthy physical examination in the same period were included.We evaluated the cognitive function was with Montreal cognitive assessment(MoCA)scale Chinese version, and calculated their MoCA total score, and recorded the clinical data and the hearing loss level.The correlation between hearing loss level and MoCA was analyzed.Results:The total scores of MoCA was significantly lower in the presbyacusis group(21.6±5.8)than that in the control group(26.8±1.5)( t=8.49, P<0.05). Patients in the presbyacusis group were associated with significantly lower levels of visuospatial and executive function(4.1 ± 0.9 vs.4.8 ± 0.5), naming(2.2 ± 1.0 vs.3.0 ± 0.0), attention(5.2 ± 1.7 vs.5.9 ± 0.5), language(2.0 ± 0.9 vs.3.0 ± 0.2), abstraction(1.6 ± 0.5 vs.1.9 ± 0.3), delayed recall(1.8 ± 0.7 vs.2.2 ± 0.4), orientation(4.4 ± 1.2 vs.5.8 ± 0.4)than the control group( all P <0.05). The level of hearing loss was negatively correlated with the total scores of MoCA and all the subscale of MoCA(all P<0.01). Univariate analysis showed that age, educational level, marital status, hearing loss level, course of hearing loss, and hearing aid were correlated with MoCA total score in elderly patients with presbcyusis(all P<0.05). Multiple linear regression analysis showed that marital status( t=6.596, P<0.05), and hearing aid( t=2.182, P<0.05)were positively correlated with MoCA total score, and age( t=-2.691), the educational level( t=-2.691), hearing loss level( t=-7.626), and course of hearing loss( t=-6.11)was negatively associated with MoCA total score(all P<0.05). Conclusions:Cognitive function is generally decline in elderly patients with presbycusis, and age, educational level, marital status, the course of hearing loss, hearing loss level and whether or not hearing aid are important factor affecting cognitive function in elderly patients with presbycusis.