Research Article

Comparison of Auto- and Fixed-Continuous Positive Airway Pressure on Air Leak in Patients with Obstructive Sleep Apnea: Data from a Randomized Controlled Trial

Table 3

Logistic regression analysis with “leaks above the median value” as the dependent variable.

Univariate analysisMultivariate analysis
OR95% (CI) valueAOR95% (CI) value

Age (years)1.01(0.99; 1.03)0.37
Sex, female0.78(0.46; 1.32)0.35
BMI (kg/m2)1.02(0.98; 1.05)0.41
Initial AHI (event/h)1.01(0.99; 1.02)0.36
Current smoker2.10(1.12; 3.93)0.02
Hypertension0.98(0.59; 1.63)0.93
Diabetes1.42(0.76; 2.64)0.27
Residual AHI (event/h)1.05(0.99; 1.11)0.10
CPAP use (hours)0.95(0.84; 1.07)0.38
Fixed-CPAP1.17(0.73; 1.89)0.52
CPAP level (cmH2O)1.25(1.11; 1.41)0.00031.19(1.05; 1.35)0.0084
Oronasal mask2.75(1.64; 4.61)0.00012.23(1.30; 3.83)0.0037
Chin strap0.71(0.12; 4.35)0.71
Heated humidifier1.18(0.73; 1.90)0.51

BMI: body mass index, AHI: apnea-hypopnea index, CPAP: continuous positive airway pressure, OR: odds ratio, and AOR: adjusted odds ratio. Data are reported as medians and quartiles or numbers and percentages, as appropriate.