Research Article
Parkinsonics: A Randomized, Blinded, Cross-Over Trial of Group Singing for Motor and Nonmotor Symptoms in Idiopathic Parkinson Disease
Table 1
Demographics, vocal, and VRQOL measures.
| Measure | Singing first-S (n = 13) | Discussion first-D (n = 13) | value |
| Age (years) | 70.5 (6.9) | 66.7 (10.1) | <0.001 | Gender | 9 male/4 female | 7 male/6 female | <0.001 | Hoehn & Yahr stage | 2.15 (0.36) | 2.42 (0.43) | <0.001 | Cookie theft (CT) average (avg) loudness week (wk) 0 (dB) | 51.9 (5.5) | 57.9 (5.3) | 0.012 | CT avg loudness wk 12 | 52.1 (5.6) | 57.0 (6.6) | 0.057 | CT avg loudness wk 24 | 54.7 (5.6) | 59.0 (5.1) | 0.050 | CT avg loudness wk 30 | 55.7 (4.5) | 57.7 (5.4) | 0.139 | CT minimal (min) loudness wk 0 | 30.7 (3.0) | 37.3 (5.4) | <0.001 | CT min loudness wk 12 | 33.7 (3.5) | 34.3 (4.0) | 0.687 | CT min loudness wk 24 | 37.7 (5.4) | 39.1 (5.7) | 0.479 | CT min loudness wk 30 | 42.3 (3.5) | 41.7 (3.7) | 1 | CT maximal (max) loudness wk 0 | 67.4 (5.1) | 71.4 (5.0) | 0.081 | CT max loudness wk 12 | 66.1 (4.8) | 71.5 (4.9) | 0.012 | CT max loudness wk 24 | 66.7 (5.5) | 71.2 (5.8) | 0.081 | CT max loudness wk 30 | 67.3 (4.5) | 69.9 (5.2) | 0.223 | Rainbow passage (RP) avg loudness wk 0 | 55.0 (7.6) | 60.8 (4.8) | 0.057 | RP avg loudness wk 12 | 53.4 (9.3) | 60.8 (5.2) | 0.039 | RP avg loudness wk 24 | 56.5 (6.5) | 61.3 (4.9) | 0.057 | RP avg loudness wk 30 | 57.3 (6.0) | 61.1 (4.2) | 0.123 | RP min loudness wk 0 | 31.8 (3.2) | 37.2 (5.2) | 0.001 | RP min loudness wk 12 | 33.4 (3.8) | 34.3 (3.4) | 0.511 | RP min loudness wk 24 | 37.0 (4.6) | 40.4 (4.0) | 0.050 | RP min loudness wk 30 | 41.8 (4.7) | 41.7 (3.8) | 0.852 | RP max loudness wk 0 | 69.5 (5.5) | 73.6 (4.3) | 0.081 | RP max loudness wk 12 | 69.4 (7.3) | 74.1 (5.0) | 0.081 | RP max loudness wk 24 | 73.7 (10.6) | 73.5 (6.1) | 0.687 | RP max loudness wk 30 | 71.2 (8.6) | 73.6 (5.6) | 0.32 | Voice-related quality of life (VRQOL) total wk 0 | 18.8 (8.3) | 21.7 (9.5) | 0.479 | VRQOL total wk 12 | 19.4 (7.4) | 23.7 (10.4) | 0.264 | VRQOL total wk 24 | 20.8 (10.5) | 22.2 (7.9) | 0.538 | VRQOL total wk 30 | 16.6 (5.4) | 21.75 (10.5) | 0.266 |
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