Table 4. Sensitivity and specificity of the health check test by each frequency, using conventional audiometry as a reference test
Indexes | Total (%) | Men (%) | Women (%) |
AUC | Cut-off value | Sensitivity | Specificity | AUC | Cut-off value | Sensitivity | Specificity | AUC | Cut-off value | Sensitivity | Specificity |
0.5 kHz | 0.934 | 27.5 | 59.8 (57.3-62.2) | 98.3 (98.0-98.5) | 0.912 | 22.5 | 47.4 (43.8-51.0) | 98.9 (98.6-99.1) | 0.968 | 27.5 | 74.6 (71.5-77.6) | 97.7 (97.3-98.0) |
1 khz | 0.966 | 27.5 | 67.5 (65.1-69.8) | 98.9 (98.7-99.1) | 0.958 | 22.5 | 57.3 (53.7-60.9) | 99.3 (99.1-99.5) | 0.983 | 32.5 | 79.7 (96.9-82.2) | 98.5 (98.2-98.8) |
2 kHz | 0.977 | 37.5 | 88.2 (96.5-89.7) | 96.1 (95.7-96.4) | 0.974 | 37.5 | 87.8 (85.4-89.9) | 96.0 (95.4-96.5) | 0.981 | 37.5 | 88.7 (86.2-90.7) | 96.1 (95.7-96.5) |
3 kHz | 0.959 | 47.5 | 96.4 (95.4-97.2) | 85.7 (85.1-96.4) | 0.944 | 52.5 | 97.8 (96.8-98.5) | 79.2 (78.1-80.4) | 0.976 | 42.5 | 94.6 (92.7-96.1) | 91.7 (91.0-92.3) |
4 kHz | 0.944 | 52.5 | 97.8 (96.9-98.4) | 75.8 (75.1-76.6) | 0.926 | 58.0 | 99.4 (98.8-99.7) | 63.0 (61.7-64.3) | 0.970 | 42.5 | 95.8 (93.9-97.0) | 87.6 (86.9-88.4) |
6 kHz | 0.929 | 62.5 | 98.6 (97.9-99.0) | 58.9 (58.0-59.8) | 0.906 | 67.5 | 99.0 (98.2-99.4) | 51.0 (49.6-52.3) | 0.947 | 57.5 | 98.2 (97.0-98.9) | 66.1 (65.0-67.2) |
1-2 kHz | 0.990 | 33.8 | 80.4 (78.3-82.3) | 99.3 (99.1-99.4) | 0.988 | 31.3 | 76.4 (73.3-79.2) | 99.5 (99.3-99.6) | 0.993 | 33.8 | 85.1 (82.4-87.5) | 99.1 (98.9-99.3) |
2-3 kHz | 0.980 | 41.3 | 94.2 (93.0-95.2) | 93.0 (92.5-93.5) | 0.974 | 43.8 | 95.8 (94.5-96.8) | 90.0 (89.2-90.8) | 0.986 | 38.8 | 92.3 (90.0-94.1) | 95.8 (95.3-96.2) |
1-3 kHz | 0.991 | 38.8 | 95.1 (93.9-96.0) | 96.6 (96.3-96.9) | 0.987 | 38.8 | 95.6 (94.1-96.7) | 95.1 (94.5-95.6) | 0.995 | 36.3 | 94.4 (92.5-95.9) | 98.0 (97.7-98.3) |
The comparison between the results of the screening test and pure tone audiometry and the sensitivity (%) and specificity (%) for each stimulus or the composite are presented. AUC: Area Under the Curve