Table 1 Participants’ descriptive information and screening results of neuropsychological tests; TH, typical hearing; HI, hearing impairment; M(SD), mean(standard deviation); K-MMSE, Korean version of the mini-mental state examination; SVLT-imme., Seoul verbal learning test - immediate recall; SVLT-delayed, Seoul verbal learning test - delayed recall; digit span-F, digit span test forward; digit span-B, digit span test backward; dB HL, decibels hearing level.
TH Group n = 36 | HI Group n = 20 | Test statistics | p-value | ||
|---|---|---|---|---|---|
Gender | Male | 23 (63.8%) | 14 (70%) | ||
Female | 13 (36.1%) | 6 (30%) | |||
Age (years) | M(SD) | 64.03 (3.72) | 65.55 (3.66) | 1.481 | 0.146 |
Range | 60–72 | 60–72 | |||
Education (years) | M(SD) | 14.56 (2.97) | 13.95 (3.18) | −0.698 | 0.490 |
Range | 9–23 | 9–23 | |||
K-MMSE (max: 30) | M(SD) | 28.97 (1.36) | 28.75 (0.96) | −0.709 | 0.482 |
Range | 26–30 | 26–30 | |||
SVLT-imme. (max: 36) | M(SD) | 21.28 (3.74) | 20.45 (3.84) | −0.780 | 0.440 |
Range | 15–31 | 15–30 | |||
SVLT-delayed (max: 12) | M(SD) | 7.35 (2.03) | 6.86 (2.09) | 0.854 | 0.398 |
Range | 4–11 | 4–12 | |||
Digit span-F (max: 14) | M(SD) | 10.44 (2.22) | 8.95 (2.85) | −2.024 | 0.051 |
Range | 6–14 | 5–14 | |||
Digit span-B (max: 14) | M(SD) | 7.64 (2.76) | 6.20 (2.74) | −1.876 | 0.068 |
Range | 4–14 | 4–14 | |||
Hearing threshold -left ear (dB HL) | M(SD) | 19 (5.97) | 33 (9.05) | 6.47 | < 0.001 |
Range | 10–41 | 24–58 | |||
Hearing threshold -right ear (dB HL) | M(SD) | 19 (4.34) | 37 (10.59) | 7.19 | < 0.001 |
Range | 11–28 | 25–62 | |||
Hearing threshold -better ear (dB HL) | M(SD) | 17 (3.83) | 33 (7.90) | 8.71 | < 0.001 |
Range | 10–24 | 25–41 | |||
M(SD) | 3.47 (0.73) | 3.25 (0.82) |
