| Number | % | Mean Age (SD) (Years) | Mean (SD) EQ-5D | Mean Duration (SD) (Hours) | Mean ISI (SD) |
---|---|---|---|---|---|---|
Whole sample | 2,842 | 100 | 42.9 (15.7) | 0.765 (0.2) | 7.8 (1.9) | 14.1 (4.8) |
Age group | Â | Â | Â | Â | Â | Â |
   18-29 | 743 | 26.1 | 24.2 (3.8) | 0.784 (0.2) | 8.0 (1.9) | 13.4 (4.6) |
   30-39 | 569 | 20.0 | 34.7 (2.9) | 0.754 (0.2) | 7.7 (1.9) | 15.0 (5.0) |
   40-49 | 624 | 22.0 | 45.0 (2.8) | 0.754 (0.2) | 7.5 (1.8) | 15.0 (4.7) |
   50-59 | 405 | 14.3 | 54.9 (2.8) | 0.749 (0.2) | 7.5 (1.8) | 14.2 (4.7) |
   60-69 | 351 | 12.4 | 64.2 (2.9) | 0.770 (0.2) | 7.9 (1.9) | 12.9 (4.5) |
   ≥ 70 | 150 | 5.30 | 74.8 (4.6) | 0.786 (0.1) | 8.1 (1.6) | 12.3 (4.7) |
Gender | Â | Â | Â | Â | Â | Â |
   Female | 1,834 | 64.50 | 42.0 (15.9) | 0.766 (0.2) | 7.9 (1.9) | 14.3 (4.8) |
   Male | 1,008 | 35.50 | 44.5 (15.2) | 0.762 (0.2) | 7.5 (1.8) | 13.7 (4.7) |
Race | Â | Â | Â | Â | Â | Â |
   White | 2,318 | 83.7 | 44.0 (15.7) | 0.768 (0.2) | 7.8 (1.8) | 13.9 (4.7) |
   Black | 292 | 10.5 | 38.1 (14.7) | 0.755 (0.2) | 7.4 (2.1) | 14.7 (5.1) |
   Asian | 44 | 1.60 | 26.7 (10.4) | 0.805 (0.1) | 7.4 (2.1) | 13.7 (3.7) |
   Other | 116 | 4.20 | 38.3 (13.7) | 0.719 (0.2) | 7.5 (2.1) | 15.7 (5.3) |
Comorbidity | Â | Â | Â | Â | Â | Â |
   No | 1068 | 37.60 | 38.2 (14.4) | 0.835 (0.1) | 7.7 (1.8) | 12.7 (4.3) |
   Yes | 1774 | 62.40 | 45.7 (15.8) | 0.723 (0.2) | 7.8 (1.9) | 14.9 (4.9) |
Sleep quality | Â | Â | Â | Â | Â | Â |
   0 | 146 | 5.14 | 43.6 (13.4) | 0.614 (0.2) | 6.6 (2.5) | 20.5 (5.1) |
   1 | 94 | 3.31 | 43.7 (15.7) | 0.697 (0.2) | 7.2 (2.3) | 18.3 (4.8) |
   2 | 250 | 8.81 | 43.9 (14.2) | 0.712 (0.2) | 7.4 (2.2) | 17.1 (4.6) |
   3 | 457 | 16.10 | 44.0 (15.0) | 0.755 (0.2) | 7.7 (1.9) | 15.5 (4.1) |
   4 | 457 | 16.10 | 41.6 (14.8) | 0.763 (0.2) | 7.9 (1.8) | 13.9 (4.0) |
   5 | 559 | 19.70 | 43.3 (15.7) | 0.795 (0.1) | 7.8 (1.6) | 12.9 (3.9) |
   6 | 411 | 14.48 | 40.9 (16.8) | 0.800 (0.1) | 8.0 (1.6) | 12.2 (3.7) |
   7 | 291 | 10.25 | 42.7 (17.0) | 0.804 (0.2) | 8.0 (1.7) | 11.6 (4.1) |
   8 | 108 | 3.81 | 43.8 (17.8) | 0.781 (0.2) | 8.4 (1.8) | 10.9 (4.0) |
   9 | 35 | 1.23 | 40.5 (18.3) | 0.858 (0.2) | 8.5 (1.2) | 11.7 (5.2) |
   10 | 30 | 1.06 | 48.3 (17.6) | 0.727 (0.3) | 8.0 (2.2) | 10.5 (5.7) |
Next day sleepiness | Â | Â | Â | Â | Â | Â |
   0 | 162 | 5.71 | 54.0 (15.8) | 0.764 (0.2) | 7.8 (2.0) | 12.4 (5.4) |
   1 | 100 | 3.52 | 49.3 (16.6) | 0.805 (0.2) | 8.0 (2.0) | 12.2 (4.5) |
   2 | 157 | 5.53 | 45.0 (16.9) | 0.792 (0.2) | 7.9 (1.8) | 12.5 (4.0) |
   3 | 213 | 7.51 | 46.0 (16.0) | 0.788 (0.2) | 7.8 (1.7) | 12.4 (4.1) |
   4 | 236 | 8.32 | 44.6 (16.1) | 0.776 (0.2) | 7.8 (1.8) | 13.0 (4.1) |
   5 | 373 | 13.15 | 44.4 (15.6) | 0.781 (0.2) | 7.9 (1.8) | 13.5 (4.3) |
   6 | 436 | 15.37 | 40.9 (15.4) | 0.783 (0.2) | 7.8 (1.9) | 13.5 (4.2) |
   7 | 520 | 18.33 | 40.6 (14.2) | 0.758 (0.2) | 7.8 (1.8) | 14.7 (4.6) |
   8 | 364 | 12.83 | 38.4 (14.3) | 0.747 (0.2) | 7.7 (1.9) | 15.6 (4.8) |
   9 | 135 | 4.76 | 40.5 (13.7) | 0.683 (0.2) | 7.5 (2.1) | 16.2 (5.3) |
   10 | 141 | 4.97 | 39.2 (14.0) | 0.710 (0.2) | 7.2 (2.2) | 18.1 (5.5) |
Latency (minutes) | Â | Â | Â | Â | Â | Â |
   < 15 | 443 | 17.39 | 44.2 (15.2) | 0.808 (0.1) | 7.7 (1.7) | 11.9 (4.3) |
   15-30 | 468 | 18.37 | 44.7 (16.5) | 0.799 (0.2) | 7.8 (1.7) | 12.3 (4.1) |
   30-45 | 449 | 17.62 | 42.9 (16.0) | 0.791 (0.1) | 7.8 (1.7) | 13.5 (4.3) |
   45-60 | 205 | 8.05 | 41.8 (15.0) | 0.773 (0.2) | 7.6 (1.7) | 13.9 (4.3) |
   60-90 | 404 | 15.86 | 42.3 (15.1) | 0.752 (0.2) | 7.8 (1.8) | 14.6 (4.4) |
   > = 90 | 579 | 22.72 | 40.5 (15.9) | 0.729 (0.2) | 8.0 (2.1) | 15.9 (4.7) |
Wake up times | Â | Â | Â | Â | Â | Â |
   1 | 375 | 18.20 | 43.6 (15.4) | 0.802 (0.2) | 7.5 (1.7) | 12.8 (4.3) |
   2 | 732 | 35.6 | 44.5 (16.1) | 0.780 (0.2) | 7.7 (1.7) | 13.6 (4.5) |
   3 | 588 | 28.6 | 44.1 (15.6) | 0.759 (0.2) | 8.0 (1.8) | 14.3 (4.4) |
   4 | 184 | 8.90 | 44.9 (15.2) | 0.743 (0.2) | 8.3 (1.8) | 15.6 (4.7) |
   5 | 179 | 8.70 | 42.6 (13.0) | 0.715 (0.2) | 8.4 (1.8) | 16.2 (4.6) |