TABLE 1.
Characteristics of patients diagnosed with obstructive sleep apnea
| Total (n=166) | Men (n=133) | Women (n=33) | Empirical CPAP
|
||
|---|---|---|---|---|---|
| Optimal (n=89) | Suboptimal (n=72) | ||||
| Age (years) | 51±11 | 51±11 | 50±10 | 50±11 | 52±10 |
| BMI (kg/m2) | 37±8 | 36±6* | 44±11 | 36±7 | 39±7 |
| Apnea-hypopnea index | 46±33 | 47±34 | 40±30 | 33±26† | 61±35 |
| ESS before CPAP | 14±5 | 15±5 | 14±5 | 15±5 | 14±5 |
| ESS after CPAP | 9±5 | 9±5 | 9±4 | 9±4 | 9±5 |
| Arbitrary CPAP pressure (cm H2O) | 9.7±1.4 | 9.8±1.3 | 9.5±1.5 | 10.2±2.2† | 9.1±1.4 |
| Titration CPAP pressure (cm H2O) | 10.2±2.2 | 10.2±2.2 | 10.2±2.2 | 9.0±1.5† | 11.8±1.8 |
| CPAP pressure difference (cm H2O) | 0.5±2.4 | 0.4±2.4 | 0.8±2.4 | −1.3±1.2 | 2.6±1.5 |
| CPAP adherence (h/night) | 4.7±2.4 | 4.6±2.3 | 5.3±3.0 | 4.7±2.4 | 4.8±2.5 |
Values are expressed as mean ± SD.
*
P<0.05 men versus women;
†
P<0.05 optimal versus suboptimal continuous positive airway pressure (CPAP). AHI Apnea-hypopnea index; BMI Body mass index; ESS Epworth Sleepiness Scale