用上行法,下行法和上下行结合法对48名患者进行了纯音气导听阈测定。结果表明,上行法和上下行结合法之间,上下行结合法与下行法之间的结果无显著性差异,而上行法和下行法之间的结果有显著性差异(P<0.01)。作者认为,用下行法测定听阈由于声记忆的存在,影响了测听结果的准确性,不宜采用。建议采用上下行结合法测定纯音听阈。 48 patients underwent purely tone-guided hearing threshold determination by using the up-and-down method and the combination of up and down method. The results show that there is no significant difference between the up and down combination method and the up and down combination method and the down combination method, while there is a significant difference between the up and down combination method (P <0.01). The author believes that using the downlink method to determine the hearing threshold due to the existence of acoustic memory, affecting the accuracy of audiometry, should not be used. It is recommended to use the combination of up and down method to determine pure tone threshold.