| AASM | American Academy of Sleep Medicine |
| AHI | apnea–hypopnea index |
| BMI | body mass index |
| BMIP | body mass index percentile |
| DS | Down’s syndrome |
| ODI | oxygen desaturation index |
| OR | odds ratio |
| OSA | obstructive sleep apnea |
| PSG | polysomnography |
| SD | standard deviation |
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