Sleep variables of patients with Tourette's syndrome (n=25) compared with healthy controls (n=4)
| Tourette patients (n=25) |
Controls (n=14) | p Value | |
| TIB (min) | 519 (81) | 486 (53) | NS |
| SPT (min) | 472 (87) | 464 (56) | NS |
| TST (min) | 428 (93) | 446 (60) | NS |
| SE (TST in %TIB) | 82 (10) | 92 (6) | <0.001 |
| Sleep latency (min) | 40 (49) | 17 (9) | <0.05 |
| REM latency (min) | 97 (62) | 94 (38) | NS |
| Wake% (SPT) | 9.6 (5.6) | 3.9 (3.7) | <0.001 |
| St I% (SPT) | 11.9 (4.1) | 8.7 (2.4) | <0.01 |
| St II% (SPT) | 47.1 (9.1) | 49.4 (5.8) | NS |
| SWS% (SPT) | 10.2 (7.0) | 14.7 (3.9) | <0.05 |
| REM% (SPT) | 20.8 (4.0) | 22.8 (4.8) | NS |
| St I% (TST) | 13.3 (5.1) | 9.1 (2.9) | <0.005 |
| St II% (TST) | 51.9 (9.0) | 51.3 (5.8) | NS. |
| SWS% (TST) | 11.2 (7.8) | 15.2 (3.9) | <0.05 |
| REM% (TST) | 23 (4.5) | 23.7 (4.9) | NS |
| Awakenings/h SPT | 2.8 (1.6) | 1.5 (0.7) | <0.001 |
| Sleep stage changes/h SPT | 18.6 (5) | 15.8 (2.4) | <0.05 |
Values are means (SD), t test (two tailed); TIB=time in bed; SPT=sleep period time; TST=total sleep time; SE=sleep efficiency =TST/TIB; SL=sleep latency; REM-latency=latency to REM sleep from sleep onset; W%, St I %, St II%, St SWS%, REM% (SPT)/(TST)=percentage of wake, stage I, stage II, slow wave sleep, REM sleep of SPT or TST respectively; awakenings/h SPT=number of awakenings/hour SPT; sleep stage changes/h SPT=sleep stage changes/hour SPT.