title: Prevalence of self-reported insomnia in general population of Poland.
abstract: OBJECTIVE
  The aim of this paper is to present the subjective insomnia prevalence. Assessment of sleep problems was a part of NATPOL study conducted to explore the risk factors for cardiovascular diseases.
  
  
  METHODS
  The study group consisted of 2,413 people (1,245 females and 1,168 males) aged 18-79 and it was representative for the Polish population. Questions concerning sleep were included in the questionnaire designed specifically for the NATPOL study, which assessed cardiovascular risk factors. The questionnaire was applied personally by trained nurses at place of residence of study subjects. Only results concerning sleep complaints are presented in this paper.
  
  
  RESULTS
  The prevalence of sleep complaints was 50.5% (58.9 % in women, 41.4% in men). Subjective insomnia was most prevalent in women aged 60-79 and it was reported by 74.8%. Difficulties in falling asleep were reported by 60.2%, difficulties in falling asleep by 45.5 % and early morning awakenings by 26.4% of respondents.
  
  
  CONCLUSIONS
  Study results suggest that self-reported insomnia is a common problem in general population of Poland. The most common sleep problem is impaired sleep initiation. Insomnia complaints are most prevalent in women and in the older age groups.
authors.affiliation: Zakład Psychiatrii Biologicznej, Katedra Chorób Psychicznych GUM.
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Nowicki
authors.affiliation: Klinika Chorób Psychicznych i Zaburzeń Nerwicowych GUM.
authors.forename: Karol
authors.initials: K
authors.lastname: Grabowski
authors.affiliation: Klinika Chorób Psychicznych i Zaburzeń Nerwicowych GUM.
authors.forename: Wiesław Jerzy
authors.initials: WJ
authors.lastname: Cubała
authors.affiliation: Katedra Medycyny Rodzinnej GUM.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Nowicka-Sauer
authors.affiliation: Zakład Prewencji i Dydaktyki, Katedra Nadciśnienia Tętniczego i Diabetologii, GUM.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Zdrojewski
authors.affiliation: Zakład Prewencji i Dydaktyki, Katedra Nadciśnienia Tętniczego i Diabetologii, GUM.
authors.forename: Marcin
authors.initials: M
authors.lastname: Rutkowski
authors.affiliation: Zakład Prewencji i Dydaktyki, Katedra Nadciśnienia Tętniczego i Diabetologii, GUM.
authors.forename: Piotr
authors.initials: P
authors.lastname: Bandosz
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001294:Attitude to Health; D002940:Circadian Rhythm; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008875:Middle Aged; D011044:Poland / Q000453:epidemiology; D015995:Prevalence; D057566:Self Report; D012737:Sex Factors; D007319:Sleep Initiation and Maintenance Disorders / Q000175:diagnosis / Q000453:epidemiology*; D055815:Young Adult
keywords: epidemiology; insomnia; population study