Table 4.
Univariate regression of adherence to PAP therapy.
| Device Type | Adjusted OR (95% CI) | p-Value |
|---|---|---|
| Median Income * | p < 0.0001 | |
| Low ($40,834–50,366) | 1.19 (1.15, 1.22) | |
| High ($50,376–65,143) | 1.27 (1.23, 1.30) | |
| Highest ($65,150–223,106) | 1.35 (1.31, 1.39) | |
| Age | 1.01 (1.01, 1.01) | p < 0.0001 |
| Women | 1.00 (1.00, 1.00) | p < 0.0001 |
| African American race | 0.99 (0.99, 0.99) | p < 0.0001 |
| Hispanic ethnicity | 0.99 (0.99, 0.99) | p < 0.0001 |
| Average leak > 45 lpm | 0.76 (0.75, 0.78) | p < 0.0001 |
| Device type ¶ | p < 0.0001 | |
| Bilevel PAP | 0.87 (0.83, 0.91) | |
| AutoPAP | 1.05 (1.03, 1.07) | |
| AutoBilevelPAP | 0.83 (0.79, 0.86) | |
| ASV | 0.68 (0.63, 0.74) | |
| AVAPS | 0.30 (0.23, 0.38) | |
| High altitude elevation † | p < 0.0001 | |
| 2000–4000 feet | 1.06 (1.01, 1.12) | |
| 4001–6000 feet | 1.24 (1.16, 1.32) | |
| >6000 feet | 1.15 (1.02, 1.31) | |
| Residual CAI > 5/hour | 0.59 (0.55, 0.63) | p < 0.0001 |
| Residual AHI > 5/hour | 0.62 (0.61, 0.64) | p < 0.0001 |
| Set-up year ‡ | p < 0.0001 | |
| Quartile 2 (2011–2012) | 1.39 (1.35, 1.42) | |
| Quartile 3 (2013–2014) | 1.61 (1.57, 1.66) | |
| Quartile 4 (>2015) | 1.80 (1.75, 1.85) |
OR = odds ratio; 95%CI = 95% confidence interval; * reference is Quartile 1 (lowest income quartile; <$40,834); ANOVA p-value < 0.0001; lpm = liters per minute; ¶ referenced against CPAP; automatic devices (autoPAP, auto-bilevel PAP, adaptive servo-ventilation (ASV), adaptive volume averaged pressure support (AVAPS)). † High elevation (referenced against < 2000 feet); CAI = central apnea index; AHI = apnea–hypopnea index. ‡ Reference earliest quartile of time (in years) of set-up is < 2011.