Characteristics of subjects with insomnia and hypnotic use (N = 5693).

Abbreviation: BZD, benzodiazepine.#There were 273 patients (5.76%) switched from short-acting to intermediate-acting (N = 199) or long-acting (N = 74) and 51 patients (5.39%) switched from intermediate-acting to long-acting hypnotics.*Low: 7 to 30 defined daily dose (DDD) per year; medium: 31 to 90 DDD per year; high: at least 91 DDD per year.$Additional included subjects.+ Current: prescription of hypnotics ended within 30 days before dementia index date; previous: prescription ended 31 to 90 days before dementia index date; remote: prescription ended 91 days or more before dementia index date.