Table 2.
Overview of audiological measures and features.
| Measure | Number of Features | Features |
|---|---|---|
| Audiogram (air conduction) | 11 | Frequencies: {0.125, 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0} kHz; worse ear (according to PTA) selected |
| Audiogram (bone conduction) | 7 | Frequencies: {0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0} kHz worse ear (according to PTA) selected |
| Asymmetry score | 1 | Difference of pure-tone average (PTA) hearing loss for left and right ear in dB |
| Adaptive categorical loudness scaling (ACALOS) | 12 | With 1.5 & 4 kHz narrowband noise; worse ear selected – Lcut (juncture point between linear parts of the loudness function) – Mlow (slope of first linear part) – Mhigh (slope of second linear part) – L2.5 (hearing threshold level) – L25 (medium-loudness level) – L50 (uncomfortable level) (37) |
| Goettingen sentence test (GOESA) | 3 | SRT (speech reception threshold) Slope SI (speech intelligibility) (32) |
| Vocabulary test (WST) | 1 | Sum of correct answers (33) |
| DemTect | 1 | Sum score of five tests (08: suspect of dementia; 912: slight cognitive impairment; 1318: normal cognitive behavior) (35) |
| Hearing problems (HP) | 2 | quiet; noise 0 (no hearing loss) to 5 (very severe) |
| Scheuch-Winkler Index (SWI) | 1 | Sum score for categories profession, education, and income (34) |
| Age | 1 | Age in years |
| Language | 1 | Native speaker (German); non-native speaker |
| Gender | 1 | Male; female |
| Tinnitus | 2 | Presence; right and left ear |