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Table 2 Probabilities of insomnia symptoms by studied independent variables. Logistic regression.

From: Associations of reported bruxism with insomnia and insufficient sleep symptoms among media personnel with or without irregular shift work

n = 874 Difficulties initiating sleep (model I) Disrupted sleep (model II) Early morning awakenings (model III)
  OR 95% CI P = OR 95% CI P = OR 95% CI P =
Gender (female) 1,7 1,2–2,6 0,006 1,4 1,0–1,8 0,031 1,7 1,1–2,8 0,020
Age ≥ 45 years 0,8 0,6–1,2 0,313 1,5 1,1–2,0 0,011 1,9 1,2–3,1 0,007
Irregular shift work 0,9 0,6–1,4 0,714 1,1 0,8–1,5 0,690 0,7 0,4–1,1 0,136
Dissatisfied with work shifts 1,9 1,2–2,9 0,006 1,3 0,9–1,9 0,142 2,6 1,5–4,3 0,001
Frequent bruxism 1,9 1,1–3,1 0,019 1,7 1,1–2,7 0,021 1,1 0,6–2,3 0,727
RLS 1,9 1,1–3,2 0,023 1,3 0,8–2,1 0,257 0,8 0,4–1,8 0,655
Snoring 1,4 0,9–2,2 0,125 1,5 1,1–2,1 0,010 1,1 0,6–1,8 0,865