• Anwar E Ahmed, Hamdan Al-Jahdali, Abdulhamid Fatani, Khalid Al-Rouqi, Fares Al-Jahdali, Abdullah Al-Harbi, Salim Baharoon, Yosra Z Ali, Mohammad Khan, and Ahmad Rumayyan.
• a King Saud bin Abdulaziz University for Health Sciences , Riyadh , Saudi Arabia.
• Ethn Health. 2017 Jun 1; 22 (3): 285-294.

ObjectivesThe aim of this study was to determine the prevalence of insomnia among the Saudi adult population.Study DesignA cross-sectional insomnia survey was conducted at King Abdulaziz Medical City (KAMC) in Riyadh, Saudi Arabia. The presence of insomnia was defined by difficulty initiating sleep, early morning awakening, or frequent awakening, in addition to the second-day effect in the form of fatigue, tiredness, or changes in the mode because of lack of sleep.ResultsThe crude prevalence of insomnia was 77.7% (95% CI = 75.9-79.5%). The gender-adjusted prevalence of insomnia was higher for females, 88.7% (95% CI = 86.4-90.7%) than for males, 70.4% (95% CI = 67.8-72.9%), p-value = .001. The age-adjusted prevalence of insomnia was higher for the elderly, 93.7% (95% CI = 90.6-96.0%) than for the middle aged, 79.8% (95% CI = 77.4-82.1%), or for the young group, 64.2% (95% CI = 59.9-68.4%), p-value = .001. The Chi-square analyses revealed that (1) being elderly, widowed/divorced, females, or housewives, (2) having a lack of education, and (3) excessive tea consumption were significantly associated with elevated risks for insomnia (p-values < .05).ConclusionsInsomnia is most prevalent among Saudi females and the elderly Saudi population.

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