Table 1.
Demographic and Baseline Data.
| Included in final analysis (N=10) | Excluded due to noninterpretable H-PSG (N=2) | |
|---|---|---|
| Age (years) | 9.1 [5.2–9.8] | 4.0 and 9.3 |
| Sex | ||
| Male | 6 (60%) | 2 (100%) |
| Female | 4 (40%) | 0 (0%) |
| Ethnicity/race | ||
| Hispanic or Latino/white | 1 (10%) | 0 (0%) |
| Non-Hispanic or non-Latino/white | 9 (90%) | 2 (100%) |
| BMI Z-score | 0.34 ± 1.03 | −0.13 and 0.63 |
| Laboratory altitude (masl) | 1644 [1615–1644] | 1644 and 1644 |
| Home altitude (masl) | 2531 [2458–2734] | 2765 and 3083 |
| Altitude difference (masl) | 856 [818–1119] | 1120 and 1439 |
| Baseline sleep characteristics | ||
| AHI | 2.4 [1.6–3.3] | 2.9 and 3.9 |
| Obstructive AHI | 0.65 [0.4–1.9] | 0.5 and 3.6 |
| Central AHI | 1.3 [0.9–2.0] | 0.3 and 2.3 |
| Mean SpO2 | 96.55 [95.5–97.5] | 95.6 and 97.6 |
| Nadir SpO2 | 90 [88–91] | 84 and 93 |
| Underlying diagnosis | ||
| Adenotonsillar hypertrophy | 3 (30%) | 0 (0%) |
| Obese (BMI >95th %ile) | 1 (10%) | 0 (0%) |
| Overweight (BMI 85th–95th %ile) | 1 (10%) | 0 (0%) |
| Prematurity | 1 (10%) | 1 (50%) |
| Lung disease | 2 (20%) | 0 (0%) |
| Pulmonary arterial hypertension | 2 (20%) | 0 (0%) |
| Genetic/chromosomal, metabolic, and neuromuscular disorders | 0 (0%) | 0 (0%) |
Demographic and baseline data including results from the lower altitude laboratory polysomnography with full montage (L-PSG Full) are shown. Summary statistics are presented as median [inner-quartile range], mean ± standard deviation, and count (percent).
AHI = apnea-hypopnea index; BMI = body mass index; H-PSG = high-altitude home polysomnography; masl = meters above sea level.