Characterization of the performance of brazilian adolescents in the Pitch Pattern Sequence (PPS) test developed by Auditec®

ABSTRACT Purpose: to characterize the performance of Brazilian adolescents in the Pitch Pattern Sequence (PPS) test and compare the results with Auditec® normative values. Methods: 26 adolescents enrolled in elementary or secondary education, of both sexes, and between 12 and 18 years, participated in the study. The inclusion criteria adopted were: a) no alterations in the visual inspection of the external acoustic meatus; b) hearing thresholds within the normal range for both ears, that is, values equal to or lower than 25dBHL; c) bilateral type “A” tympanometric curve, d) presence of acoustic reflex, contralateral mode, in the frequencies of 500, 1000 and 2000Hz, in both ears, typical auditory behavior according to the Scale of Auditory Behaviors (SAB) or greater than 46 points. For adolescents, who met the inclusion criteria, the PPS (Auditec® version) was applied, binaurally, at 50dBSL. The findings were analyzed in a descriptive and inferential manner. Results: statistical analysis showed significance only for the comparison of the mean value of 88.10%, a result obtained in the PPS performed by Brazilians, when compared to the normative value (included) suggested by Auditec®, in which the mean was 96%. Conclusion: the findings of this study demonstrated that the values obtained in the PPS, Auditec® version, in the Brazilian population, were similar to those presented in the international literature.

摘要
研究目的：刻画巴西青少年在音调序列测试（Pitch Pattern Sequence, PPS）中的表现，并将测试结果与Auditec®标准正常值进行对比。
研究方法：本研究纳入26名就读于初等或中等教育阶段的青少年，涵盖两性，年龄介于12至18岁之间。纳入标准如下：
a) 外耳门视诊无异常；
b) 双耳听阈处于正常范围，即双耳听阈值均≤25dBHL；
c) 双耳鼓室图均为A型曲线；
d) 双耳在500Hz、1000Hz及2000Hz频率下均存在对侧声反射，且根据听觉行为量表（Scale of Auditory Behaviors, SAB）评估所得的听觉行为表现为典型，或得分高于46分。
针对符合上述纳入标准的受试者，采用声强为50dBSL的双耳刺激模式施测Auditec®版PPS测试。研究结果采用描述性与推断性统计方法进行分析。
研究结果：统计学分析显示，巴西受试者完成PPS测试所得的平均得分为88.10%，仅当将该结果与Auditec®所建议的标准正常值（均值为96%）进行对比时，二者差异具有统计学显著性。
研究结论：本研究结果表明，巴西人群使用Auditec®版PPS测试所得的数值，与国际文献中报道的结果相近。