Table 2.

Changes in polysomnography (ODI-4 [events/h], SaO₂ [%] and BMI [kg/m²])

Group	ODI-4			SaO2			BMI
	Pre	Post	Paired differences P valuea	Pre	Post	Paired differences P valuea	Pre	Post	Paired differences P valuea
A (n = 7)	17.8 (12.0)	3.5 (3.4)	0.018	94.3 (1.6)	96.3 (2.0)	0.115	30.9 (4.1)	31.0 (3.5)	0.500
B (n = 6)	1.6 (1.2)	3.0 (2.6)	0.465	96.3 (1.2)	97.8 (1.7)	0.056	28.1 (3.8)	30.2 (4.8)	0.138
P valueb	0.001	0.945		0.022	0.101		0.234	0.445

^aBy Wilcoxon test.

^bBy Mann-Whitney test.

M (SD) = mean (standard deviation).