Table 5 The characteristics of different cut points for missing teeth vs. oral impact on daily performance
|  | 50–64 | 65≤ |  | ||||||
|---|---|---|---|---|---|---|---|---|---|
OIDP items | Cut-point | Sensitivity (CI 95%) | Specificity (CI 95%) | The area under ROC curve (CI 95%) | Cut-point | Sensitivity (CI 95%) | Specificity (CI 95%) | The area under ROC curve (CI 95%) | |
Biting difficulty | > 10 | 55.2 (50.8 to 59.6) | 79.9 (77.4 to 82.2) | 0.723 (0.710 to 0.754) | > 15 | 70.6 (64.2 to 76.4) | 74.9 (68.7 to 80.4) | 0.775 (0.733 to 0.812) | |
Difficulty chewing food | > 9 | 50.8 (47.2 to 54.4) | 79.1 (76.2 to 81.8) | 0.696 (0.673 to 0.719) | > 14 | 65.8 (59.9 to 71.4) | 72.8 (65.7 to 79.1) | 0.724 (0.681 to 0.765) | |
Speech/word pronouncing difficulties | > 12 | 68.9 (60.4 to 76.6) | 77.3 (75.0 to 79.4) | 0.784 (0.763 to 0.804) | > 16 | 74.4 (63.2 to 83.6) | 61.2 (56.1 to 66.1) | 0.701 (0.657 to 0.743) | |
Felt embarrassed due to the appearance of teeth | > 8 | 58.1 (52.9 to 63.3) | 69.3 (66.7 to 71.9) | 0.675 (0.651 to 0.698) | > 16 | 64.1 (53.5 to 73.9) | 60.1 (54.9 to 65.2) | 0.624 (0.577 to 0.668) | |
Avoid smiling | > 8 | 81.6 (55.8 to 67.3) | 68.5 (66.0 to 71.0) | 0.687 (0.663 to 0.709) | > 13 | 78.2 (67.4 to 86.8) | 50.6 (45.5 to 55.8) | 0.668 (0.623 to 0.711) | |
Decrease in social activities due to oral and dental conditions | > 8 | 77.0 (66.8 to 85.4) | 65.4 (63.0 to 67.8) | 0.757 (0.735 to 0.778) | > 10 | 83.3 (62.6 to 95.3) | 41.9 (37.2 to 46.7) | 0.614 (0.568 to 0.659) | |
Having at least one oral impact on daily performance | > 7 | 56.8 (53.5 to 60.0) | 77.5(74.2 to 80.6) | 0.725 (0.703 to 0.747) | > 10 | 72.1 (66.9 to 77.0) | 71.1 (62.7 to 78.6) | 0.758 (0.716 to 0.796) | |