Table 2.
Characteristics of users depending on their sleep complaints.
| Characteristics |
Values | Group comparison | P value | |||
| ISIa score ≤14 (individuals with subclinical insomnia, n=801) | ISI score >14 (individuals with moderate to severe insomnia, n=773) | t test (df) | Chi-square (df) |
|
||
| Age, mean (SD) | 44.1 (14.3) |
42.0 (13.1) | −3.03 (1576)b | N/Ac | .002 | |
| Age in years, n (%) |
|
|
|
|||
|
|
18-30 | 166 (20.7) | 172 (22.3) |
|
|
|
|
|
31-50 | 372 (46.3) | 391 (50.6) |
|
|
|
|
|
51-65 | 194 (24.2) | 172 (22.3) |
|
|
|
|
|
>65 | 69 (8.7) | 38 (4.9) |
|
|
|
| Gender, n (%) | N/A | 31.91 (1) | .001 | |||
|
|
Female | 484 (60.4) | 571 (73.9) |
|
|
|
|
|
Male | 317 (39.6) | 202 (26.1) |
|
|
|
| Educational level, n (%) |
|
|
N/A | 12.14 (2) | .007 | |
|
|
Middle school | 150 (18.6) | 168 (21.7) |
|
|
|
|
|
High school | 139 (17.5) | 170 (22.0) |
|
|
|
|
|
University degree | 512 (63.9) | 435 (56.2) |
|
|
|
| Health care professionals, n (%) | 53 (6.6) | 36 (4.7) | N/A | 2.75 (1) | .097 | |
| Confined due to COVID-19 lockdown, n (%) | 586 (73.1) | 614 (79.4) | N/A | 8.86 (1) | .003 | |
| Clinical insomnia, ISI score, mean (SD) | 10.02 (3.42) |
18.2 (2.74) |
52.12 (1572) | N/A | .001 | |
| Clinical insomnia subtype, n (%) |
|
|
|
|||
|
|
No clinically significant insomnia (ISI score ≤7) | 180 (22.5) | 0 (0) |
|
|
|
| Subthreshold (ISI score 8-14) | 621 (77.5) | 0 (0) |
|
|
|
|
| Moderate (ISI score 15-21) | 0 (0) | 672 (86.9) |
|
|
|
|
| Severe (ISI score ≥21) | 0 (0) | 101 (13.1) |
|
|
|
|
| CDS-5d, mean (SD) | 4.53 (6.93) | 6.45 (8.30) | 3.41 (734) | N/A | .001 | |
| Daily number of cigarettes, mean (SD) | 3.09 (6.40) | 5.33 (8.68) | −4.03 (734) | N/A | .001 | |
| CAGEe, mean (SD) | 0.65 (0.97) | 0.78 (1.12) | 1.66 (734) | N/A | .097 | |
| Daily number of drinks, mean (SD) | 1.34 (2.09) | 1.66 (3.18) | −1.62 (734) | N/A | .11 | |
aISI: Insomnia Severity Index.
bItalicized values indicate they are statistically significant.
cN/A: not applicable.
dCDS-5: Cigarette Dependence Scale-5 items.
eCAGE: Cut-down, Annoyed, Guilty, Eye-opener questionnaire.