Table 4.

Comparisons between pre- and posthypoxia DPOAE at 8000 Hz. (Wilcoxon signed-rank test.)

	Prehypoxia 8000 Hz (n:10)		Posthypoxia 8000 Hz (n:10)
	Mean ± SD	Median (min–max)	Mean ± SD	Median (min–max)	P
SaO2 100–90	8.66 ± 22	14.42 (–27.33 to 39.9)	16.76 ± 17.02	17.6 (–4.53 to 43.5)	0.021
SaO2 90–80			11.3 ± 17.37	12.91 (–19.66 to 38.93)	0.721
SaO2 80–70			–4.6 ± 14.87	–5.66 (–28.9 to 12.62)	0.037
SaO2 70–60			–17.57 ± 17.77	–22.92 (–38.41 to 7.23)	0.005