Table 11 Characteristics of the possible cut-off scores for the chinese PRISMA-7 questionnaire for participants aged 75 years and above
Cut-off | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) |
|---|---|---|---|---|
0 | 100 | 0.0 | 16.7 | – |
1 | 100 | 2.0 | 17.0 | 100 |
2 | 100 | 34.0 | 23.0 | 100 |
3 | 100 | 76.0 | 45.0 | 100 |
4 | 80.0 | 94.0 | 73.0 | 96.0 |
5 | 50.0 | 100 | 100 | 90.9 |
6 | 10.0 | 100 | 100 | 84.7 |
7 | 0.0 | 100 | – | 83.3 |