Martins Quemile Pribs, Faccin Vivian Amaral, Brückmann Mirtes, Gil Daniela, Garcia Michele Vargas
Departamento de Fonoaudiologia, Universidade Federal de Santa Maria - UFSM - Santa Maria (RS), Brasil.
Departamento de Fonoaudiologia, Universidade Federal de São Paulo - UNIFESP, São Paulo (SP), Brasil.
Codas. 2018 Jun 11;30(3):e20170048. doi: 10.1590/2317-1782/20182017048.
To investigate the auditory ability of selective attention in the school population and to identify reference values to the age group from seven to ten years old through the Masking Level Difference Test, and to identify if the parents' schooling, as well as the family income can influence the test results.
Thirty-one schoolchildren who match the eligibility criteria attended the study, being 20 female and 11 male. An anamnesis was conducted to question the familiar income and the schooling of the children´s parents; we also performed visual inspection of the External Acoustic Meatus, Pure Tone Audiometry, Speech Audiometry, Acoustic Immittance Measures, Dichotic Digits Test and Masking Level Difference test.
The mean age of the individuals was 8.67 years. There were no observed differences between genders and between the evaluated ages in the MLD performance. There was no relation between the parents' schooling and the average monthly income with the performance of the children in MLD Test. The MLD mean was 7.65 dB and standard deviation of 2.51 dB.
The Masking Level Difference in schoolchildren from seven to ten years old is 7.65 dB and is independent of the gender, parents' schooling and the average monthly income of the schoolchild.
通过掩蔽级差测试研究学龄人群的选择性听觉注意能力，确定7至10岁年龄组的参考值，并确定父母的受教育程度以及家庭收入是否会影响测试结果。
31名符合入选标准的学童参加了该研究，其中20名女性，11名男性。进行了一项问卷调查，询问孩子父母的家庭收入和受教育程度；我们还对外耳道进行了目视检查、纯音听力测试、言语听力测试、声导抗测量、双耳数字测试和掩蔽级差测试。
研究对象的平均年龄为8.67岁。在掩蔽级差测试表现中，未观察到性别之间以及评估年龄之间的差异。父母的受教育程度和月平均收入与孩子在掩蔽级差测试中的表现之间没有关系。掩蔽级差平均值为7.65 dB，标准差为2.51 dB。
7至10岁学童的掩蔽级差为7.65 dB，且与性别、父母的受教育程度和学童的月平均收入无关。
