Table 4: Group differences and prevalence of sleep disturbances in students with nightmares at least three times a week and students reporting no nightmares in the past four weeks.

 

 

Nightmares < 3x/week
(n = 853)

Nightmares ≥ 3x/week
(n = 126)

χ - Test

 

Unadj. OR (95% CI)

Frequent difficulties falling asleep (3x/week more than 30min)

11.8% (101/854)

26.2% (33/126)

χ(1) = 19.192, p ≤ .001

OR = 2.65 (1.69-4.14)

Frequent awaking at night
(3x/week or more often)

11.4% (97/853)

46.8% (59/126)

χ(1) = 103.016, p ≤ .001

OR = 6.86 (4.56-10.33)

frequent fitful sleep
(3x/week or more often)

8.1% (69/853)

53.2% (67/126)

χ(1) = 186.556, p ≤ .001

OR = 12.90 (8.41-19.79)

Frequent anxiety concerning going to bed (3x/week or more often)

0.5% (4/853)

11.9% (15/126)

χ(1) = 75.442, p ≤ .001

OR = 28.68 (9.35-87.95)

Usually going to bed after midnight

25.4% (217/853)

25.4% (32/126)

χ(1) = 0.000, p > .05