Table 10 Characteristics of the possible cut-off scores for the chinese PRISMA-7 questionnaire for participants aged 65 to 74
Cut-off | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) |
|---|---|---|---|---|
0 | 100 | 0 | 2.0 | – |
1 | 100 | 3.4 | 2.0 | 100 |
2 | 100 | 39.0 | 3.0 | 100 |
3 | 100 | 93.2 | 20.0 | 100 |
4 | 100 | 100 | 100 | 100 |
5 | 100 | 100 | 100 | 100 |
6 | 100 | 100 | 100 | 100 |
7 | 0.0 | 100 | – | 98.3 |