Table 1 The sociodemographic characteristics of the sample.
Variables | Total sample N (%) | Cluster 1 233 (48.4) | Cluster 2 123 (25.6) | Cluster 3 125 (26) | p |
|---|---|---|---|---|---|
Sex | 0.242 | ||||
Female | 334 (69.4) | 167 (71.7) | 78 (63.4) | 89 (71.2) | |
Male | 147 (30.6) | 66 (28.3) | 45 (36.6) | 36 (28.8) | |
Education | 0.292 | ||||
Bachelor | 252 (52.4) | 125 (53.6) | 65 (52.8) | 62 (49.6) | |
MD | 168 (34.9) | 84 (36.1) | 38 (30.9) | 46 (36.8) | |
MSc | 33 (6.9) | 10 (4.3) | 14 (11.4) | 9 (7.2) | |
PhD | 28 (5.8) | 14 (6) | 6 (4.9) | 8 (6.4) | |
Marital status | 0.117 | ||||
Married | 108 (22.5) | 43 (18.5) | 31 (25.2) | 34 (27.2) | |
Single | 373 (77.5) | 190 (81.5) | 92 (74.8) | 91 (72.8) | |
Smoking | 0.677 | ||||
No | 425 (88.4) | 208 (89.3) | 106 (86.2) | 111 (88.8) | |
Yes | 56 (11.6) | 25 (10.7) | 17 (13.8) | 14 (11.2) | |
Age range | 0.037 | ||||
18–25 | 236 (49.1) | 129 (55.4) | 54 (43.9) | 53 (42.4) | |
25–35 | 181 (37.6) | 80 (34.3) | 53 (43.1) | 48 (38.4) | |
35–53 | 64 (13.3) | 24 (10.3) | 16 (13) | 24 (19.2) | |
Mobil use | 0.001 | ||||
Never | 4 (0.8) | 0 (0) | 3 (2.4) | 1 (0.8) | |
Sometimes | 89 (18.5) | 2 (0.9) | 10 (8.1) | 77 (61.6) | |
Every night | 388 (80.7) | 231 (99.1) | 110 (89.4) | 47 (37.6) | |
Bedtime | 0.001 | ||||
< 21 | 6 (1.2) | 0 (0) | 3 (2.4) | 3 (2.4) | |
21–23 | 84 (17.5) | 0 (0) | 7 (5.7) | 77 (61.6) | |
23 − 2 | 346 (71.9) | 209 (89.7) | 92 (74.8) | 45 (36) | |
2–12 | 45 (9.4) | 24 (10.3) | 21 (17.1) | 0 (0) | |
Sleep duration (M ± SD) | 7.08 ± 1.59 | 7.85 ± 1.07 | 5.17 ± 1.09 | 7.50 ± 1.24 | 0.001 |
