Table 1.
Baseline Variables Between the Two Groups
| Factors | All Enrolled Patients | P value | Patients Included for Sleep Architecture Analyses | P value | ||
|---|---|---|---|---|---|---|
| Dexmedetomidine (N=20) | Control (N=20) | Dexmedetomidine (N=17) | Control (N=18) | |||
| Age (years) | 65.8 ± 8.3 | 65.6 ± 7.7 | 0.840a | 65.4 ± 8.5 | 65.6 ± 7.9 | 0.781a |
| BMI (kg/m2) | 21.9 ± 2.8 | 23.4 ± 2.7 | 0.090a | 22.0 ± 2.9 | 23.4 ± 2.8 | 0.167a |
| Tumor stage (1/2/3/4) | 6/8/3/3 | 7/7/4/2 | 0.922b | 4/8/2/3 | 6/7/3/2 | 0.840b |
| Surgical type (partial/ laryngectomy) | 14/6 | 14/6 | 0.999c | 12/5 | 13/5 | 0.999c |
| Anesthesia duration (min) | 199.3 ± 63.3 | 166.1 ± 71.1 | 0.151a | 203.8 ± 66.1 | 175.6 ± 72.1 | 0.267a |
Notes: Data are shown as mean (SD) or number. aStudent’s t-test; bMann–Whitney U; cFisher’s exact test.