Duration of mobile phone | Wakeup time | Sleep hours | Sleep quality | DTS | Mental health |
5 - 10 (min) | 7.16 ± 0.46 | 6.93 ± 0.96 | 1.82 ± 0.41 | 15.64 ± 4.07 | 12.45 ± 2.30 |
(106) | (106) | (106) | (104) | (105) | |
10 - 30 | 7.16 ± 0.48 | 6.96 ± 0.88 | 1.89 ± 0.87 | 15.45 ± 3.15 | 12.45 ± 1.90 |
(114) | (114) | (100) | (114) | (114) | |
30 - 60 | 7.19 ± 0.52 | 6.84 ± 1.34 | 1.92 ± 0.27 | 14.45 ± 4.54 | 12.21 ± 0.60 |
(60) | (60) | (52) | (60) | (60) | |
1 - 5 (hour) | 7.14 ± 0.45 | 6.91 ± 1.04 | 1.87 ± 0.34 | 15.26 ± 3.54 | 12.12 ± 0.17 |
(73) | (73) | (73) | (74) | (73) | |
5 - 6 | 7.03 ± 0.59 | 6.94 ± 1.05 | 1.93 ± 0.26 | 16.05 ± 3.21 | 11.21 ± 3.63 |
(64) | (63) | (57) | (61) | (64) | |
>6 | 7.27 ± 0.45 | 6.86 ± 1.18 | 1.97 ± 0.26 | 14.87 ± 3.47 | 12.15 ± 0.48 |
(118) | (117) | (116) | (119) | (121) | |
Total | 7.17 ± 0.49 | 6.91 ± 1.06 | 1.90 ± 0.33 | 15.37 ± 3.65 | 12.21 ± 2.27 |
(535) | (533) | (464) | (531) | (538) | |
Kruskal-Wallis test | |||||
Wakeup time | Sleep hours | Sleep quality | DTS | Mental health | |
χ2-value | 8.358 | 1.932 | 8.991 | 4.296 | 8.860 |
df | 5 | 5 | 5 | 5 | 5 |
p value | 0.138 | 0.858 | 0.109 | 0.508 | 0.115 |