Table 1 Descriptive statistics for the sample
Count | Females (%) | Age (M) | |
|---|---|---|---|
Sleep onset (SOI) | 627 | 71.1 | 48.9 |
Maintenance (MI) | 1102 | 72.5 | 53.0 |
Terminal (TI) | 396 | 60.6 | 57.6 |
SOI + MI | 428 | 80.6 | 52.1 |
MI + TI | 443 | 68.6 | 55.6 |
SOI + TI | 73 | 78.1 | 58.7 |
SOI + MI + TI | 533 | 83.1 | 55.1 |
Total in cases | 3602 | 73.1* | 53.4* |
Controls | 2427 | 58.2 | 45.2 |
Total | 6029 | 67.1 | 50.1 |