Table 2 Descriptive statistics for primary study variables for the good sleepers group (N = 223) and the poor sleepers group (N = 206)
From: Beliefs about sleep: links with ruminations, nightmare, and anxiety
Measure | Mean | SD | ||
|---|---|---|---|---|
good sleepers | poor sleepers | good sleepers | poor sleepers | |
Nightmare Frequency | 2.04 | 3.01 | 1.36 | 1.74 |
BDI | 4.62 | 9.56 | 4.28 | 5.65 |
BAI | 7.81 | 16.92 | 6.72 | 10.33 |
SCI | 23.74 | 11.00 | 4.43 | 3.45 |
NDQ | 9.36 | 14.53 | 7.61 | 9.22 |
Non-constructive ruminations | 16.41 | 19.53 | 4.03 | 4.45 |
Constructive ruminations | 21.4 | 20 | 3.87 | 3.52 |
DBAS | 103.95 | 145.70 | 37.37 | 34.68 |