Table 1.
Polysomnograpy (PSG): Comparison of Sleep Bruxism (SB) Measures in Myofascial Temporomandibular Pain Disorder (TMD) Cases and Controls.
| PSG Measure | Controls (n=37) | Cases (n=86) | p value | ||
|---|---|---|---|---|---|
| Mean (SD) | Median | Mean (SD) | Median | ||
| RMMA episodes (per hour) | 2.2 (1.9) | 1.4 | 2.1 (2.0) | 1.4 | .77 |
| Duration (all episodes, seconds) | 72.2 (71.4) | 48.9 | 66.7 (74.3) | 41.2 | .3 |
| Duration of interepisode intervals (seconds) | 1192.0 (1972.0) | 393 | 1137.7 (1975.8) | 281 | .51 |
| Duration of interepisode intervals (rank) | 827.4 (482.4) | 864 | 806.7 (463.5) | 793 | .44 |
SD = standard deviation.