Falk B, Magnuson B
Arch Otorhinolaryngol. 1984;240(2):145-52. doi: 10.1007/BF00453472.
In our previous studies on eustachian tube function in children with middle ear effusion, we found that many ears were evacuated by the act of sniffing. When subjects were tested repeatedly, however, responses to sniffing were very variable. In order to study the spontaneous variability, a total of 51 subjects (81 ears) were retested. The results of the retest were very similar to those of the first test when all the ears were considered as a group. However, in individual ears pronounced variability was seen. In the sniff test, responses changed qualitatively in 30% of the ears, and in 27% of the ears there was a change in the ability to equalize pressure by swallowing. Thus, the results of the group were highly reproducible, while at the same time individual results were highly variable with time.
在我们之前关于中耳积液患儿咽鼓管功能的研究中，我们发现许多耳朵通过 sniffing 动作得以排空。然而，当对受试者进行重复测试时，对 sniffing 的反应变化很大。为了研究这种自发变异性，总共对 51 名受试者（81 只耳朵）进行了重新测试。当将所有耳朵视为一个整体时，重新测试的结果与第一次测试的结果非常相似。然而，在个体耳朵中观察到了明显的变异性。在 sniff 测试中，30%的耳朵反应在性质上发生了变化，27%的耳朵通过吞咽平衡压力的能力发生了变化。因此，整体结果具有高度可重复性，而与此同时个体结果随时间变化很大。
