Table 8 Means, standard deviations and significance level for the components of the PSQI in both countries
Scale | Germany | Luxembourg | Significance level | |||
|---|---|---|---|---|---|---|
Mdn | M (SD) | Mdn | M (SD) | |||
(1) | Sleep quality | 1 | 1 | U = 241,562; z = −1.207; p = .228 | ||
(2) | Sleep-onset latency In minutes | 2 | 24.47 (26.85) | 2 | 27.84 (26.05) | U = 257,277, z = 1.888; p = .059 |
(3) | Sleep duration In hours | 0 | 7.09 (1.08) | 0 | 6.94 (1.17) | U = 256,345; z = 1.615; p = .106 |
(4) | Habitual sleep efficiency In percent | 0 | 87.83 (10.11) | 0 | 86.30 (10.92) | U = 258,207; z = 1.833; p = .067 |
(5) | Sleep disturbance | 1 | 1 | U = 242,547; z = −.177; p = .907 | ||
(6) | Use of sleep medication | 0 | 0 | U = 241,562; z = −.485; p = .628 | ||
(7) | Daytime dysfunction | 1 | 2 | U = 242,553; z = .473; p = .636 | ||