CBT-I Treatment Outcomes & Research Evidence Flashcards

Remission from insomnia after CBT-I is typically defined as:

Answer: ISI score at or below 7 and sleep efficiency above 85%

Remission criteria typically include an ISI below the clinical threshold (≤7) and/or sleep efficiency exceeding 85%.

Long-term follow-up studies of CBT-I typically assess durability of outcomes at:

Answer: 6-12 months post-treatment

Most CBT-I trials assess durability at 6 and 12 months post-treatment, with some studies extending to 2 years.

Meta-analyses on CBT-I consistently show the largest effect sizes for:

Answer: Sleep onset latency and wake after sleep onset

Effect sizes for SOL and WASO are consistently the largest in CBT-I meta-analyses, reflecting the treatment's strong impact on nighttime wakefulness.

Which predictor most consistently predicts better CBT-I outcomes in research studies?

Answer: Greater treatment adherence

Treatment adherence — particularly consistent use of sleep restriction and stimulus control — is the strongest predictor of CBT-I success.

The Harvey cognitive model of insomnia identifies which maintaining factor as central?

Answer: Selective attention and monitoring for sleep-related threats

Harvey's cognitive model posits that selective attention to sleep-related cues and threats perpetuates arousal and maintains insomnia.

In comparing CBT-I alone to sleep medication combined with CBT-I, research generally finds:

Answer: CBT-I alone and combination therapy produce similar long-term outcomes, with some studies favoring CBT-I alone

Studies including the Morin et al. landmark trial show that CBT-I alone produces outcomes equivalent to or better than combination therapy at long-term follow-up.