Table 1.
Demographic and Neuropsychological Data
| HC Group | PI Group | P-value | |
|---|---|---|---|
| Gender, n (M/F) | 34(13/21) | 32(12/20) | 1.000 |
| Age, years | 35.8 ± 7.1 | 37.5±8.9 | 0.407 |
| Education, years | 8.3 ± 2.1 | 7.80±2.04 | 0.726 |
| Disease duration | / | 26.6 ± 1.1 | / |
| PSQI | 2.06±1.41 | 12.03± 3.56 | <0.01 |
| Sleep quality | 0.47 ±0.50 | 2.28 ±0.68 | <0.01 |
| Sleep latency | 0.38±0.49 | 1.91± 1.03 | <0.01 |
| Sleep duration | 0.44±0.50 | 1.69± 1.02 | <0.01 |
| Sleep efficiency | 0.23±0.43 | 1.63± 0.83 | <0.01 |
| Sleep disturbances | 0.20±0.41 | 1.38± 0.61 | <0.01 |
| Sleep medication | 0.21±0.41 | 1.09± 1.40 | <0.01 |
| Daytime dysfunction | 0.12±0.32 | 2.19± 0.86 | <0.01 |
| AIS | 1.53±1.18 | 12.97 ±3.99 | <0.01 |
| RMS of head motion | 0.37±0.24 | 0.37±0.19 | 0.9509 |
| FD_power of head motion | 0.17±0.06 | 0.21±0.10 | 0.1853 |
Notes: Data are presented as mean ± standard deviation. Chi-square test was used for gender comparisons, and a two-sample t-test was used for age and neuropsychological test comparisons.
Abbreviations: HC, healthy controls; PI, primary insomnia; M, male; F, female; PSQI, Pittsburgh Sleep Quality Index; AIS, Athens Insomnia Scale; RMS, root mean square; FD_power, framewise displacement power.