Table 1. Participant Demographics.
| Characteristic | VAD ON and OFF (N = 101) | VAD OFF (n = 52) | VAD ON (n = 49) | ||
|---|---|---|---|---|---|
| aNRS Score ≤4 (n = 38) | aNRS Score >4 (n = 14) | aNRS Score ≤4 (n = 37) | aNRS Score >4 (n = 12) | ||
| Age, mean (SD) [range], y | 66.0 (11.3) [32-89] | 70.1 (9.8) [43-88] | 60.1 (10.1) [47-78] | 66.1 (11.4) [45-89] | 59.5 (11.6) [32-74] |
| Sex, No. (%) | |||||
| Male | 64 (63.4) | 26 (68.4) | 6 (42.9) | 26 (70.3) | 6 (50.0) |
| Female | 37 (36.6) | 12 (31.6) | 8 (57.1) | 11 (29.7) | 6 (50.0) |
| Location of surgery, No. (%) | |||||
| Head and neck | 74 (73.3) | 28 (73.7) | 13 (92.9) | 24 (64.9) | 9 (75.0) |
| Extremities | 22 (21.8) | 10 (26.3) | 1 (7.1) | 10 (27.0) | 1 (8.3) |
| Trunk | 5 (5.0) | 0 | 0 | 3 (8.1) | 2 (16.7) |
Abbreviations: aNRS, anticipated Numeric Rating Scale; VAD, vibratory anesthetic device.