Table 4.
Group-based mean (SD) of summary statistics of weeklong vocal dose and voice quality measures computed for adult females in the phonotraumatic (n = 51) and non-phonotraumatic (n = 20) vocal hyperfunction patient groups and their respective control groups.
| Summary statistic | Phonotraumatic controls | Phonotraumatic group | Non-phonotraumatic group | Non-phonotraumatic controls |
|---|---|---|---|---|
| Monitoring duration (hh:mm:ss) | 81:11:49 (13:13:35) | 77:21:43 (15:36:33) | 73:44:37 (10:04:12) | 78:59:16 (13:50:13) |
| SPL (dB SPL re 15 cm) | ||||
| Mean | 83.9 (4.6) | 85.2 (4.1) | 80.1 (6.0) | 83.0 (5.2) |
| SD | 12.5 (2.4) | 11.8 (1.9) | 9.9 (3.1) | 11.2 (3.3) |
| Minimum | 62.7 (5.8) | 64.5 (4.9) | 63.3 (7.0) | 64.5 (6.3) |
| Maximum | 104.2 (6.7) | 103.5 (5.9) | 96.3 (8.3) | 101.7 (9.5) |
| Range | 41.4 (8.5) | 39.0 (6.7) | 33.0 (10.6) | 37.2 (11.6) |
| f0 (Hz) | ||||
| Mode | 201.4 (19.1) | 197.2 (22.3) | 193.8 (31.1) | 192.9 (25.7) |
| SD | 89.6 (17.5) | 75.3 (17.3) | 73.5 (24.9) | 70.1 (14.3) |
| Minimum | 170.3 (14.9) | 166.7 (17.4) | 160.0 (20.5) | 163.2 (22.2) |
| Maximum | 440.6 (58.9) | 392.4 (65.5) | 382.4 (81.4) | 374.6 (62.3) |
| Range | 270.3 (55.9) | 225.7 (56.7) | 222.4 (81.2) | 211.4 (49.4) |
| Phonation time | ||||
| Cumulative (hh:mm:ss) | 7:24:08 (2:33:32) | 7:33:45 (2:36:34) | 4:25:14 (2:31:57) | 5:46:13 (2:16:17) |
| Normalized (%) | 9.2 (2.9) | 9.7 (2.6) | 6.0 (3.1) | 7.3 (2.7) |
| Cycle dose | ||||
| Cumulative (millions of cycles) | 7.121 (2.76) | 6.718 (2.495) | 3.708 (2.202) | 4.814 (1.831) |
| Normalized (cycles/h) | 87,954 (30,508) | 85,719 (25,633) | 49,892 (26,997) | 61,310 (22,241) |
| Distance dose | ||||
| Cumulative (m) | 26,769 (11,815) | 26,689 (10,999) | 12,254 (8284) | 18,084 (8466) |
| Normalized (m/h) | 330.0 (129.3) | 340.7 (112.1) | 165.1 (102.4) | 228.0 (98.4) |
| Autocorrelation peak | ||||
| Mean | 0.851 (0.018) | 0.843 (0.015) | 0.827 (0.022) | 0.837 (0.014) |
| SD | 0.080 (0.004) | 0.079 (0.004) | 0.082 (0.007) | 0.079 (0.004) |
| Minimum | 0.677 (0.020) | 0.672 (0.016) | 0.657 (0.024) | 0.668 (0.014) |
| Maximum | 0.941 (0.010) | 0.934 (0.011) | 0.926 (0.014) | 0.928 (0.010) |
| Range | 0.263 (0.015) | 0.262 (0.014) | 0.269 (0.021) | 0.260 (0.013) |
| Harmonic spectral tilt (dB/oct) | ||||
| Mean | −14.1 (0.6) | −14.4 (0.6) | −13.6 (1.1) | −14.1 (0.8) |
| SD | 2.4 (0.3) | 2.4 (0.2) | 2.5 (0.3) | 2.4 (0.2) |
| Minimum | −17.8 (0.8) | −18.2 (0.8) | −17.5 (1.0) | −17.8 (1.1) |
| Maximum | −9.9 (0.8) | −10.5 (0.6) | −9.3 (1.5) | −9.8 (1.0) |
| Range | 8.0 (1.0) | 7.7 (0.8) | 8.2 (1.2) | 8.0 (0.8) |
| LH ratio (dB) | ||||
| Mean | 30.5 (1.1) | 30.5 (1.3) | 30.1 (1.3) | 30.7 (1.5) |
| SD | 4.4 (0.4) | 4.5 (0.4) | 4.1 (0.5) | 4.5 (0.5) |
| Minimum | 24.0 (0.6) | 23.8 (0.7) | 23.8 (0.5) | 24.1 (0.7) |
| Maximum | 38.3 (1.6) | 38.6 (1.8) | 37.3 (2.1) | 38.8 (2.2) |
| Range | 14.3 (1.3) | 14.8 (1.3) | 13.5 (1.7) | 14.7 (1.6) |
| CPP (dB) | ||||
| Mean | 22.9 (1.0) | 23.2 (1.1) | 21.4 (2.1) | 22.8 (1.1) |
| SD | 4.5 (0.3) | 4.4 (0.3) | 4.2 (0.5) | 4.4 (0.3) |
| Minimum | 15.1 (0.5) | 15.3 (0.6) | 14.3 (0.8) | 14.9 (0.7) |
| Maximum | 29.6 (1.2) | 29.7 (1.2) | 28.0 (2.3) | 29.3 (1.1) |
| Range | 14.5 (1.0) | 14.4 (0.9) | 13.8 (1.6) | 14.4 (1.0) |
Statistically significant differences between means are highlighted (p < 0.001). Minimum, maximum, and range are trimmed estimators reporting 5th percentile, 95th percentile, and range of the middle 90% of the data, respectively.