Usefulness of Home Overnight Pulse Oximetry in Patients with Suspected Sleep-Disordered Breathing

Table 1

Demographic and clinical information for the 104 subjects included in the study.

	Values
Age (years)	52 ± 10.1
BMI (kg/m^2)	30 ± 4.1
Male (number, %)	73 (70%)
Epworth sleepiness scale	9 ± 4.1
Diabetes (number, %)	23 (22%)
COPD (number, %)	22 (21%)
Dyslipidemia (number, %)	34 (33)
Vascular disease (number, %)	22 (21%)
Hypertension (number, %)	49 (47%)
Cardiac arrhythmia (number, %)	14 (13%)
AHI (events/h)	28 ± 23.2
Baseline SpO2 (%)	95 ± 1.6
Mean SpO2 (%)	94 ± 2.2
ODI3 (events/h)	40 ± 26
ODI4, (events/h)	25 ± 20.4
T90, (%)	5 ± 9.7

Results are presented as mean ± standard deviation for continuous variables and number (%) for categorical variables. BMI: body mass index; COPD: chronic obstructive pulmonary disease; AHI: apnea-hypopnea index; SpO₂: oxygen saturation measured by nocturnal oximetry; ODIs: mean number of oxygen desaturations ≥ 3% and 4% (ODI3 and ODI4) per hour of analyzed recording; T90: time spent with SpO₂ < 90%.