| Number | percentage |
Subjective quality of sleep |
|
|
Bad | 86 | 25.4 |
Good | 253 | 74.6 |
Sleep latency |
|
|
Very bad | 33 | 9.7 |
Bad-enough | 36 | 10.6 |
Good enough | 99 | 29.2 |
Very good | 171 | 50.4 |
Sleep duration (in hours) |
|
|
<7 | 198 | 58.4 |
≥7 | 141 | 41.6 |
Usual sleep efficiency (%) |
|
|
<65 | 3 | 0.9 |
65 - 74 | 0 | 0.0 |
75 - 84 | 10 | 2.9 |
>85 | 326 | 96.2 |
Sleep disturbance |
|
|
<1 | 25 | 7.4 |
2 - 9 | 305 | 90.4 |
10 - 18 | 9 | 2.7 |
Use of a sleeping pill |
|
|
Not in the last month | 304 | 89.6 |
Less than once a week | 25 | 7.4 |
1 or 2 times a week | 9 | 2.7 |
3 or 4 times a week | 1 | 0.3 |
Disruption of daytime operation |
|
|
Very bad | 3 | 0.9 |
Enough-bad | 28 | 8.3 |
Good enough | 100 | 29.5 |
Very good | 208 | 61.4 |
PITTSBURGH Sleep Quality Index score |
|
|
≤5 | 162 | 47.8 |
>5 | 177 | 52.2 |