Table 5.

Relation of minimum oxygen saturation with AMH, TRV, TCD, and M. STOP bang Q. risk

		Minimum O2 saturation		P-value
		Mean ± SD	Range
Apnea hypopnea index (AHI)	Normal	69.45 ± 15.02	50–84	0.575•
	Mild	65.25 ± 12.45	51–83
	Moderate	66.67 ± 2.52	64–69
	Severe	58.00 ± 7.00	53–66
Tricuspid regurgitant jet velocity (TRV)	Normal	69.45 ± 12.53	50–84	0.022≠
	Abnormal	59.13 ± 9.70	50–77
Transcranial duplex (TCD)	Normal	66.83 ± 12.38	50–84	0.436•
	Conditional	53.00 ± 0.00	53–53
	Abnormal very low	72.25 ± 14.27	51–81
	Abnormal high	55.00 ± 0.00	55–55
Modified STOP-Bang questionnaire RISK	Low	70.37 ± 12.89	50–84	0.215•
	Intermediate	61.73 ± 11.43	50–81
	High	65.33 ± 12.01	53–77

•, one-way ANOVA; ≠ , independent t-test