Higher Apnea-Hypopnea Index (AHI) and Oxygen Desaturation Index (ODI) Were Independently Associated with Increased Risks of Hypertension in Patients with T2DM: A Cross-Sectional Study

Table 2

PSG indices categorized by hypertension in patients with T2DM.

	All patients	Normotension	Hypertension	value
n (%)		186 (58.9%)	130 (41.1%)
AHI	9.0 (3.3–24.9)	5.7 (2.1–17.3)	17.2 (5.7–34.9)	<0.001
REM-AHI (events/h)	2.4 (0.0–15.8)	1.9 (0.0–12.7)	4.3 (0.0–20.4)	0.142
NREM-AHI (events/h)	8.8 (3.3–25.9)	5.2 (2.2–16.6)	17.6 (5.5–36.5)	<0.001
OSAS categories				<0.001
No	112	85 (75.9%)	27 (24.1%)
Mild	82	51 (62.2%)	31 (37.8%)
Moderate	62	30 (48.4%)	32 (51.6%)
Severe	60	20 (33.3%)	40 (66.7%)
ODI (events/h)	32.5 (13.9–62.9)	22.6 (10.8–48.1)	48.4 (21.9–78.0)	<0.001
Lowest SaO2 (%)	76.0 ± 10.2	77.3 ± 9.8	74.0 ± 10.4	0.004

AHI, apnea-hypopnea index; CI, confidence interval; NREM, nonrapid eye movement; ODI, oxygen desaturation index; OR, odds ratio; OSAS, obstructive sleep apnea syndrome; REM, rapid eye movement; SaO₂, arterial oxygen saturation; T2DM, type 2 diabetes mellitus.