Table 1.
Characteristics of deaf participants. Information about language proficiency is based on a self-assessment survey
| ID | Sex | Age | Cause of deafness | Hearing loss (left ear/right ear/mean) |
Onset of deafness (age in months) |
Hearing aid use | Native language (spoken/sign) | Languages primarily used at the time of the experiment | How well subject understand speech with hearing aid | How well subject speaks polish |
|---|---|---|---|---|---|---|---|---|---|---|
| Sub01 | F | 30 | Hereditary deafness | 110/90/100 dB | 0 | Uses currently | Sign | Sign | Moderate | Well |
| Sub02 | M | 27 | Maternal disease/ drugs side effect | 120/90/105 dB | 0 | Used in the past | Sign | Sign | Moderately | Poorly |
| Sub04 | M | 23 | Hereditary deafness | Average: 90–119 dB, profound | 0 | Uses currently | Sign | Sign & Spoken | Moderately | Well |
| Sub05 | M | 27 | Hereditary deafness | Average: 90–119 dB, profound | 0 | Used in the past | Sign | Sign | Poorly | Poorly |
| Sub06 | M | 27 | Hereditary deafness | Average: 120 dB, severe | 0 | Used in the past | Spoken | Sign & Spoken | Poorly | Moderately |
| Sub07 | F | 27 | Hereditary deafness | Average: 90–119 dB, profound | 0 | Used in the past | Spoken | Sign & Spoken | Poorly | Moderately |
| Sub08 | F | 27 | Hereditary deafness |
Average: 120 dB, severe |
0 | Used in the past | Sign | Sign | Poorly | Poorly |
| Sub09 | M | 27 | Hereditary deafness | 120/120/120 dB | 0 | Used in the past | Sign | Sign | Poorly | Well |
| Sub10 | F | 32 | Hereditary deafness | 89/80/85 dB | 0 | Uses currently | Sign | Sign & Spoken | Moderately | Well |
| Sub14 | F | 32 | Maternal disease/ drugs side effect | 105/115/110 dB | 18 | Uses currently | Spoken | Sign & Spoken | Moderately | Well |
| Sub17 | F | 19 | Hereditary deafness | 95/100/98 dB | 0 | Uses currently | Sign | Sign & Spoken | Moderately | Poorly |
| Sub18 | M | 27 | Hereditary deafness | 94/107/101 dB | 0 | Used in the past | Sign | Sign | Poorly | Poorly |
| Sub19 | F | 30 | Hereditary deafness | 90/90/90 dB | 0 | Used in the past | Sign | Sign & Spoken | Poorly | Moderately |
| Sub20 | F | 25 | Hereditary deafness | 70/60/65 dB | 0 | Uses currently | Sign | Sign | Well | Moderately |
| Sub21 | F | 37 | Maternal disease/ drugs side effect | 110/110/110 dB | 24 | Used in the past | Spoken | Sign | Poorly | Moderately |
| Sub22 | F | 20 | Hereditary deafness | 113/115/114 dB | 0 | Used in the past | Spoken | Sign & Spoken | Poorly | Poorly |
| Sub23 | M | 19 | Hereditary deafness | 90/110/100 dB | 0 | Uses currently | Sign | Sign & Spoken | Well | Well |
| Sub24 | F | 19 | Hereditary deafness | 94/103/99 dB | 0 | Uses currently | Sign | Sign & Spoken | Very well | Well |
| Sub28 | F | 30 | Hereditary deafness | 78/92/85 dB | 0 | Uses currently | Sign | Sign & Spoken | Poorly | Poorly |
| Sub29 | F | 23 | Maternal disease/ drugs side effect | 102/120/111 dB | 1 | Uses currently | Spoken | Sign & Spoken | Moderately | Well |
| Sub31 | F | 30 | Maternal disease/ drugs side effect | 100/120/110 dB | 1 | Uses currently | Spoken | Sign & Spoken | Well | Well |