Table 1.
Demographic and clinical characteristics of the studied population.
| Insomnia N = 52 |
Healthy Controls N = 45 |
χ2 (df)/t (df) | p Value | |
|---|---|---|---|---|
| Age (mean ± SD) | 43.0 ± 11.7 | 40.3 ± 12.2 | 1.125 (91.7) | 0.26 |
| Gender (female, number) | 40 | 31 | 0.794 (1) | 0.49 |
| BMI | 26.7 ± 5.8 | 27.6 ± 5.8 | −0.780 (92.3) | 0.43 |
| Smoking (yes, number) | 16 | 21 | 0.270 (1) | 0.66 |
| PSQI (mean ± SD) | 12.3 ± 3.3 | 4.3 ± 2.0 | 14.436 (85.4) | <0.001 |
| ISI (mean ± SD) | 19.9 ± 4.2 | 5.7 ± 2.1 | −21.577 | <0.001 |
| Duration of the insomnia (month, mean ± SD) | 31.6 ± 45.2 |
BMI, body-mass index; PSQI, Pittsburgh sleep quality index; ISI, insomnia severity index. Sociodemographic variables were calculated by Chi-square tests for categorical variables and t-test for continuous variables. The significance threshold was set at 0.05.