Table 1. Comparison of control and incentive groups.
| Control group (n = 121) | Incentive group (n = 137) | P | |
| CPAP acceptance (%) | 33.1 | 47.4 | 0.02 |
| Males (%) | 79.3 | 78.8 | 1.0 |
| Age (years) | 50.9±10.3 | 50.8±10.6 | 0.95 |
| BMI (kg/m2) | 32.1±6.7 | 32.6±5.6 | 0.59 |
| AHI (events/h) | 39.9±22.0 | 38.7±19.9 | 0.62 |
| T90 (%) | 11.9±18.8 | 7.5±15.2 | 0.04 |
| ESS (score) | 10.1±4.9 | 10.2±5.3 | 0.89 |
| Tobacco smoking (pack/year) | 23.6±26.6 | 13.2±24.3 | 0.003 |
| Education (years) | 13.2±3.7 | 13.5±3.0 | 0.58 |
| HTN/CVD (%) | 48.8 | 51.8 | 0.71 |
| Living with a partner (%) | 86.8 | 85.4 | 0.86 |
| Employed (%) | 71.1 | 75.2 | 0.48 |
| Income level | |||
| Low (%) | 40.5 | 46.7 | 0.16 |
| Average (%) | 43.0 | 44.5 | |
| High (%) | 16.5 | 8.8 |
AHI – Apnea-Hypopnea Index, BMI – Body Mass Index, CPAP accepting – patients who purchased CPAP and commence treatment. CVD – cardiovascular disease, ESS – Epworth Sleepiness Scale, HTN – hypertension, T90 – percent sleeping time in which oxygen saturation was below 90%. Values are mean±SD.