What ISI score indicates moderate insomnia?

Scores of 15-21 indicate moderate clinical insomnia requiring intervention. Scores above 14 are the commonly used clinical cutoff.

Is ISI sensitive to treatment change?

Yes, ISI is a validated outcome measure for CBT-I and pharmacotherapy trials. A 6-point decrease represents a minimal clinically important difference.

What does ISI measure beyond sleep onset?

ISI assesses sleep onset, maintenance, early morning awakening, sleep dissatisfaction, functional impairment, noticeability by others, and distress about sleep problems.

Insomnia Severity Index (ISI)

Score the ISI to quantify insomnia severity. Total scores 0-7 no clinically significant insomnia, 8-14 subthreshold, 15-21 moderate clinical insomnia, 22-28 severe clinical insomnia.

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Frequently Asked Questions

What ISI score indicates moderate insomnia?

Is ISI sensitive to treatment change?

What does ISI measure beyond sleep onset?