Table 1 The summary of socio demographics, general, sleep characteristics of the total study population as well as the “no sleepiness”, “severe sleepiness”, and “excessive sleepiness” groups
Variables | n (%), mean ± SD | No sleepiness n = 20 | Excessive sleepiness n = 32 | Severe sleepiness n = 29 | P |
|---|---|---|---|---|---|
Sociodemographics characteristics | |||||
Age (per years) | 26.1 ± 3.4 | 26.9 ± 4 | 26.2 ± 3.5 | 26.1 ± 3.2 | 0.33 |
Sex | 0.04 | ||||
Male | 49(60.5) | 16(80) | 20(62.5) | 13(44.8) | |
Female | 32(39.5) | 4(20) | 12(37.5) | 16(55.2) | |
Marital status | 0.92 | ||||
Married | 14(17.3) | 3(15) | 6(18.8) | 5(17.2) | |
Unmarried | 67(82.7) | 17(85) | 26(81.3) | 24(82.8) | |
Had children | |||||
Yes | 4(21.8) | --- | --- | --- | |
General characteristics | |||||
Training year | 0.01 | ||||
First year | 58 | 10(17.2) | 22(38) | 26(44.8) | |
Second year and more | 22 | 9(41) | 10(45.5) | 3(13.6) | |
Work hours (per day) | 8.5 ± 2.3 | 8.7 ± 2.3 | 8.1 ± 2.3 | 8.6 ± 2.3 | 0.61 |
Tabac | 0.09 | ||||
Yes | 7(8.6) | 2(10) | 5(15.6) | 0 | |
No | 74(91.4) | 18(90) | 27(84.4) | 29(100) | |
Caffeine intake | 0.43 | ||||
Yes | 40(49.4) | 12(60) | 16(50) | 12(41.4) | |
No | 41(50.6) | 8(40) | 16(50) | 17(58.6) | |
Ethylism | 0.21 | ||||
Yes | 1(1.2) | --- | --- | --- | |
No | 80(98.8) | --- | --- | --- | |
Exercice | |||||
Yes | 12(15.2) | 4(21.1) | 2(6.5) | 6(20.7) | 0.22 |
No | 67(84.8) | 15(78.9) | 29(93.5) | 23(79.3) | |
Change in body weight | 0.02 | ||||
Yes | 61(76.3) | 11(55) | 22(78.6) | 28(78.5) | |
No | 19(23.8) | 9(45) | 4(12.5) | 6(21.4) | |
Weight gain (per kg) | 5.5 ± 3 | 5.6 ± 2.7 | 5.5 ± 3.3 | 5.4 ± 3.7 | 0.75 |
Weight loss (per kg) | 5.6 ± 4 | 2.2 ± 0.9 | 6 ±4.9 | 6.1 ± 3.6 | 0.21 |
Sleep characteristics | |||||
Shift-off sleep hours | 0.17 | ||||
≤4 h | 1(1.3) | 1(5) | 0 | 0 | |
4–6 h | 30(39) | 4(20) | 14(45.2) | 12(46.2) | |
>6 h | 46(59.7) | 15(75) | 17(54.8) | 14(53.8) | |
Shift-on sleep hours | 0.01 | ||||
≤4 h | 66(85.7) | 14(70) | 28(90.3) | 24(92.3) | |
4–6 h | 4(5.2) | 4(20) | 0 | 0 | |
>6 h | 7(9.1) | 2(10) | 3(9.7) | 2(7.7) | |
General quality of life | |||||
EQ-5D Index | 0.61 ± 0.3 | 0.7 ± 0.3 | 0.6 ± 0.3 | 0.5 ± 0.2 | 0.35 |
EQ-VAS | 60 ± 20 | 65.7 ± 21.5 | 58.9 ± 20.3 | 58 ± 17.4 | 0.34 |