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Table 2 Prevalence of sleep complaints (based on AIS) in the total sample and by gender. Number of responders (%) who estimate to have a 'marked' or 'severe problem' in the eight AIS items

From: Insomnia and its correlates in a representative sample of the Greek population

  Total sample Men Women
AIS-8 individual items N (%) N (%) N (%)
   Sleep induction 174 (17.3) 50 (10.4) 124 (23.8)
   Awakenings during the night 147 (14.6) 50 (10.4) 97 (18.6)
   Final awakening 116 (11.5) 46 (9.5) 70 (13.4)
   Total sleep duration 99 (9.9) 34 (7.0) 65 (12.5)
   Sleep quality 103 (10.2) 38 (7.9) 65 (12.5)
   Well-being during the day 86 (8.6) 35 (7.2) 51 (9.8)
   Functioning during the day 86 (8.6) 28 (5.8) 58 (11.1)
   Sleepiness during the day 57 (5.7) 19 (3.9) 38 (7.3)