Table 4
Difference in proportions of hearing loss* between screening test† (using three different sets of criteria) and diagnostic test results, by frequency
| Diagnostic test | Screening test (criterion 1) | Screening test (criterion 2) | Screening test (criterion 3) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Frequency | % | % | Difference‡ | Kappa | % | Difference‡ | Kappa | % | Difference‡ | Kappa |
| *Hearing loss was defined according to the criteria described in “Subjects and methods” section—that is, for the diagnostic test, the sum of low frequencies (0.5, 1, and 2 KHz), ⩾90 dB; the sum of high frequencies (3, 4, and 6 KHz), ⩾90 dB; and for the individual frequencies (3, 4, 6, and 8 KHz), ⩾30 dB. | ||||||||||
| †Criterion 1: same criteria as in diagnostic test. Criterion 2: sum of three low frequencies ⩾105 dB; sum of three high frequencies ⩾105 dB; individual frequencies (3, 4, 6, and 8 KHz) ⩾35 dB. Criterion 3: sum of three low frequencies ⩾120 dB; sum of three high frequencies ⩾120 dB; individual frequencies (3, 4, 6, and 8 KHz) ⩾40 dB. | ||||||||||
| ‡Difference = % in screening test − % in diagnostic test. | ||||||||||
| **p<0.01, ***p<0.001. | ||||||||||
| 3 low frequencies | 36.9 | 63.4 | 26.5** | 0.491 | 26.3 | −10.6** | 0.629 | 3.4 | −33.5** | 0.120 |
| 3 high frequencies | 70.3 | 81.1 | 9.8** | 0.614 | 65.5 | −4.8** | 0.654 | 5.8 | −64.5** | 0.093 |
| 3 KHz | 52.0 | 65.6 | 13.6** | 0.641 | 54.4 | 2.4 | 0.712 | 12.4 | −39.6** | 0.153 |
| 4 KHz | 73.1 | 81.1 | 8.0** | 0.652 | 74.9 | 1.8 | 0.669 | 15.9 | −57.2*** | 0.083 |
| 6 KHz | 81.8 | 90.6 | 8.8** | 0.401 | 83.8 | 2.0 | 0.468 | 20.3 | −61.5** | 0.019 |
| 8 KHz | 65.6 | 72.1 | 6.5** | 0.607 | 62.6 | −3.0 | 0.659 | 13.6 | −52.0** | 0.037 |
