Is ahi= 9.7 on a home sleep test really necessary to treat?

Apnea Hypopnea Index: Apnea Hypopnea Index (AHI) is # of apneas / hypopneas recorded per hour sleep with a polysomnogram. Here is an obstructive sleep apnea classification: None/Minimal: AHI < 5 per hour, Mild: AHI ≥ 5, but < 15 per hour, Moderate: AHI ≥ 15, but < 30 per hour & Severe: AHI ≥ 30 per hour. I am not a sleep medicine specialist but here is article entitled " Mild Obstructive Sleep Apnea Syndrome Should -