Study of predicting the real-ear-to-coupler difference based on head circumference in 0-6 years old children
10.3969/j.issn.1006-7299.2025.03.004
- VernacularTitle:依据头围预估0～6岁儿童真耳-耦合腔差的研究
- Author:
Ying LI
1
;
Xin JIN
;
Renjie TONG
;
Xueyao WANG
;
Haihong LIU
;
Xu ZHANG
Author Information
1. 首都医科大学生物医学工程学院(北京 100069);国家儿童医学中心(北京)首都医科大学附属北京儿童医院,耳鼻咽喉头颈外科,儿童耳鼻咽喉头颈外科疾病北京市重点实验室(北京 100045)
- Publication Type:Journal Article
- Keywords:
Children;
Real ear measurement;
Real-ear-to-coupler difference;
Head circumference
- From:
Journal of Audiology and Speech Pathology
2025;33(3):222-226
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the feasibility of estimating the real-ear-to-coupler difference(RECD)in children with head circumference,so as to further optimize the personalized and accurate matching scheme of hearing aid fitting for children.Methods A total of 106 children(197 ears)were enrolled in this study.Head circumference was measured using a soft ruler and RECD was measured using OmetroricsAuricalTM.SPSS software was used to analyze the correlation between the head circumference,month age and RECD values at each frequency of children.Results ① The head circumference of boys was slightly larger than that of girls,but there was no significant differ-ence between them(P＞0.05).② Unitary linear correlation analysis showed that RECD values at 750-6 000 Hz were negatively correlated with the head circumference,and a regression equation was established between RECD values at 1 000-6 000 Hz and the head circumference.③ RECD values calculated by regression formula based on the head circumference showed no significant difference between 1 000-3 000 Hz and 6 000 Hz and children's actu-al RECD values.Conclusion The individual RECD values of 0-6 years old children were correlated with the head circumference,and with the increase of the head circumference,RECD values at middle and high frequencies de-creased gradually.For children whose physical developments were not consistent with biological age,the RECD data at middle and high frequencies could be estimated based on the head circumference.
