Table 2.Group differences and prevalence
of sleep disturbances in students with nightmares at least once a week and
students reporting nightmares less than once a week.
|
|
Nightmares < 1x/week |
Nightmares ≥ 1x/week |
χ²-Test |
Unadj. OR (95% CI) |
|
Frequent difficulties falling asleep (3x/week more
than 30 min) |
12.0%
(200/1663) |
24.1%
(128/532) |
χ²(1) = 45.922, p ≤ .001 |
OR = 2.32 (1.80-2.97) |
|
Frequent
awaking at night |
13.2%
(220/1663) |
28.0%
(149/532) |
χ²(1) = 62.946, p ≤ .001 |
OR = 2.55 (2.01-3.23) |
|
Frequent
fitful sleep |
9.6%
(160/1663) |
31.6%
(168/532) |
χ²(1) = 152.896, p ≤ .001 |
OR = 4.34 (3.49-5.54) |
|
Frequent
anxiety concerning going to bed (3x/week or more often) |
(13/1663) |
5.1%
(27/532) |
χ²(1) = 41.562, p ≤ .001 |
OR = 6.79 (3.48-13.26) |
|
Usually
going to bed after midnight |
25.3%
(420/1663) |
30.8%
(164/532) |
χ²(1) = 6.407, p ≤ .05 |
OR = 1.32 (1.06-1.64) |