Insomnia Subtypes in Clinical Population According to the Insomnia Type Questionnaire (ITQ): A Multi-Centre Study in Spanish Sleep Clinics.

J Sleep Res · 2026 · PMC12856099 · PMID 40562392

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did not reach statistical significanceno p-value reported

Family history of insomnia (36.6%) and psychiatric illness (42.8%) were frequent, especially in Types 1 and 3 patients, although they did not reach statistical significance.

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