# Apnea–hypopnea index

> number of apnea and hypopnea events per hour of sleep

**Wikidata**: [Q618736](https://www.wikidata.org/wiki/Q618736)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Apnea–hypopnea_index)  
**Source**: https://4ort.xyz/entity/apnea-hypopnea-index


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)