TABLE 1.
Description (mean and SD) of variables, including demographics (age and schooling), hearing loss, suprathreshold auditory brain stem responses, auditory processes, and cognitive domains.
| Variable | Median (IQR) |
||
| Men, n = 44 (38%) | Women, n = 72 (62%) | Mann-Whitney U, p value (two-tailed) | |
| Age (years) | 75 (8) | 72 (8) | 0.012 |
| Schooling (years) | 11 (6) | 11 (6) | |
| PTA right ear (dB HL) | 34.4 (18.1) | 25 (16.7) | 0.042 |
| PTA left ear (dB HL) | 32.5 (22.5) | 23.8 (18.2) | 0.005 |
| OAE right ear | 1.0 (4) | 4.0 (7) | 0.004 |
| OAE left ear | 1.5 (5) | 5.0 (7) | 0.026 |
| Amplitude wave I right ear (μV) | 0.1 (0.09) | 0.12 (0.1) | |
| Amplitude wave I left ear (μV) | 0.10 (0.13) | 0.14 (0.11) | 0.012 |
| Latency wave I right ear (ms) | 1.53 (0.26) | 1.53 (0.17) | |
| Latency wave I left ear (ms) | 1.53 (0.34) | 1.50 (0.19) | 0.024 |
| Amplitude wave V right ear (μV) | 0.33 (0.21) | 0.38 (0.17) | |
| Amplitude wave V left ear (μV) | 0.36 (0.16) | 0.36 (0.19) | |
| Latency wave V right ear (ms) | 5.73 (0.33) | 5.60 (0.37) | 0.000 |
| Latency wave V left ear (ms) | 5.73 (0.47) | 5.60 (0.3) | 0.001 |
| Speech in noise right ear (correct answers) | 22 (2) | 23 (2) | 0.042 |
| Speech in noise left ear (correct answers) | 22 (3) | 23 (2) | |
| Dichotic digits right ear (correct answers) | 37 (5) | 35 (4) | |
| Dichotic digits left ear (correct answers) | 29 (13) | 29 (10) | |
| SSW right ear (total of errors) | 3 (4) | 2 (3) | 0.032 |
| SSW left ear (total of errors) | 8 (8) | 4 (7) | 0.001 |
| Frequency pattern right ear (correct answers) | 13 (9) | 11 (10) | 0.031 |
| Frequency pattern left ear (correct answers) | 11 (10) | 9 (12) | |
| Gap in noise (ms) | 87.1 (67.7) | 99.7 (97.9) | |
| Rey figure | 31.5 (4.5) | 31.0 (5) | |
| Foward digit span | 6 (3) | 6 (2) | |
| Backward digit span | 4 (1) | 4 (2) | |
| Digit symbol | 34.5 (17) | 40.0 (23) | 0.012 |
| TMT-A | 57.5 (32) | 49.0 (34) | |
| TMT-B | 200 (194) | 140 (151) | |
| FCSRT | 43 (8) | 46 (4) | 0.001 |
| Boston nominating test | 25 (4) | 26 (5) | |
Differences by gender were analyzed for each variable.
PTA, pure-tone average of responses for 0.5, 1, 2, and 4 kHz; OAE, total number of distortion product otoacoustic emissions; SSW, staggered spondaic words; TMT-A, Trail Making Test Part A; TMT-B, Trail Making Test Part B; FCSRT, total recall of the Free and Cued Selective Reminding Test; IQR, interquartile range.