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 |
n frequence, SD standard deviation, IQR interquantil range, % pourcentage, Kg kilogramme.
EQ5D Euroqol 5 dimension, VAS visual analogic scale.