TABLE 1.
Demographic characteristics and between-group comparisons for participants in the active control (n = 30) and experimental (n = 27) groups
| Participant Demographics | Active Control | Experimental | Between-Group Comparison | |
|---|---|---|---|---|
| n = 30 | n = 27 | t/χ2 | p | |
| Age, yr; mean (SD) | 63.73 (5.45) | 66.22 (6.30) | 1.60 | 0.12 |
| Sex | ||||
| Male, n (%) | 14 (46.7) | 13 (48.1) | ||
| Female, n (%) | 16 (53.3) | 14 (51.9) | 0.01 | 0.91 |
| Better-ear hearing | ||||
| PTA0.25–4 kHz dB HL, mean (SD) | 37.53 (12.50) | 43.26 (14.48) | 1.60 | 0.12 |
| Montreal Cognitive Assessment score, mean (SD) | 28.10 (1.61) | 27.93 (1.24) | −0.46 | 0.65 |
| Baseline working memory | ||||
| T1 backward digit span (n trials correct), mean (SD) | 7.17 (2.83) | 6.96 (2.10) | −0.31 | 0.76 |
| Hearing aid fitting | ||||
| Unilateral, n (%) | 2 (6.7) | 4 (14.8) | ||
| Bilateral, n (%) | 28 (93.7) | 23 (85.2) | 1.00 | 0.32 |
| Hearing aid use, yr; mean (SD) | 5.14 (7.29) | 7.71 (7.81) | 1.28 | 0.21 |
| Musical experience (formal training) | ||||
| Yes n (%) | 7 (23.3) | 4 (14.8) | ||
| No n (%) | 23 (76.7) | 23 (85.2) | 0.66 | 0.42 |
| Computer skill | ||||
| Beginner, n (%) | 10 (33.3) | 7 (26.9) | ||
| Competent, n (%) | 20 (66.7) | 19 (73.1) | 0.27 | 0.60 |
Independent t tests used for between-group comparisons for continuous variables. Chi square tests used for between-group comparisons for categorical variables. For definition of computer skill, see Henshaw et al. (2012).