Mechanism

AHI (apnea-hypopnea index)

What a GLP-1 receptor agonist actually does: which receptors it reaches, how it slows gastric emptying, and the satiety pathway it runs through.

What is AHI (apnea-hypopnea index)?

Apnea-hypopnea index: breathing pauses of ten seconds or more, plus partial reductions with oxygen desaturation, counted per hour of sleep.

5–14 is mild obstructive sleep apnea, 15–29 moderate, 30 or more severe. SURMOUNT-OSA used it as the primary endpoint and tirzepatide 15 mg cut it by about 25 events an hour against placebo.

SURMOUNT-OSA trial deep-dive →

GLP Watchdog writes these definitions from FDA labels and peer-reviewed PubMed literature.

Where AHI (apnea-hypopnea index) comes up on this site

Other terms under Mechanism

Where the evidence lives