4 Metrics Your Sleep Center Should Be Tracking
Sleep efficiency, arousals, apnea-hypopnea index (AHI), and oxygen desaturation index (ODI) are four critical metrics for sleep centers to track. Understanding how to evaluate these components can increase sleep study success and patient satisfaction.
Patients with difficulties initiating or maintaining sleep have diminished sleep efficiency. This can have an adverse effect on the patient’s health and is typically linked to various conditions, such as depression. On the contrary, falling asleep right away indicates sleep deprivation and possibly a disorder.
Physicians are able to better understand the severity by tracking how many times a patient’s sleep was disrupted. Arousals are registered in the sleep study and reported both as a total number and a frequency per hour. A patient is more likely to feel tired if the arousal index is higher.
- Normal sleep: AHI of fewer than 5 events per hour
- Mild sleep apnea: AHI of 5 to 14 events per hour
- Moderate sleep apnea: AHI of 15 to 29 events per hour
- Severe sleep apnea: AHI of 30 or more events per hour
Physicians typically recommend a CPAP machine for patients with moderate or severe sleep apnea. Lifestyle changes such as losing weight, exercising, and quitting smoking are also beneficial.
Oxygen Desaturation Index
At sea level, a normal blood oxygen level is considered to be 96-97%. A reduction in saturation is considered mild from 90-95%. Dips into the 80% range are considered moderate, while anything below 80% is severe. For patients with obstructive sleep apnea, ODI combined with AHI are helpful in determining the severity.
Choose Between In-Lab and Home Sleep Testing
To ensure your sleep center is tracking these metrics, it is important to choose sleep lab software that has an easy-to-use dashboard that contains all this information. To learn more about using DreamClear, start a conversation with our team today.