Table 3.
Change in parameters studied with time (n = 33)
| Factor studied | Baseline | 3 months | 6 months | p–value |
|---|---|---|---|---|
| FF of vowel a in Hz, mean (SD) | 137.3 (34.2) | 121.8 (28.5) | 119.1 (26.5) | < 0.001 |
| FF of vowel i in Hz, mean (SD) | 149.9 (43.8) | 134.8 (30) | 132.9 (33.4) | 0.02 |
| FF of vowel u Hz, mean (SD) | 149.8(35.6) | 133.7 (26.5) | 136.5 (31.1) | 0.009 |
| MSFF in Hz, mean (SD) | 142.4 (43.5) | 135.1 (27.1) | 121.1 (23.2) | 0.017 |
| Xerostomia score, median (Q3–Q1) | 0 (5–0) | 25(50–3) | 14 (41–0) | < 0.001 |
| Weight in kg, mean (SD) | 55 (12.4) | 50.1 (12) | 49.9 (12) | < 0.001 |
FF — fundamental frequency; Q1 — first quartile; Q3 — third quartile; MSFF — mean spoken fundamental frequency; SD — standard deviation