Table 4 Sensitivity and specificity of each cut-off value for the risk score for low back pain with the inclusion of the Thai ERIQ
From: Development of a risk score for low back pain in office workers - a cross-sectional study
Cut-off value | Sensitivity | Specificity | PPV | NPV |
|---|---|---|---|---|
≥ 1 | 100.0 | 2.1 | 56.2 | 100.0 |
≥ 2 | 98.4 | 11.7 | 58.3 | 85.0 |
≥ 3 | 90.7 | 28.3 | 61.3 | 70.7 |
≥ 4 | 83.5 | 48.3 | 60.0 | 70.0 |
≥ 5 | 74.2 | 63.4 | 71.8 | 66.2 |
≥ 6 | 51.6 | 78.6 | 75.2 | 56.4 |
≥ 7 | 30.2 | 91.0 | 80.9 | 51.0 |
≥ 8 | 22.5 | 95.2 | 85.4 | 49.5 |
≥ 9 | 8.2 | 97.9 | 83.3 | 46.0 |
≥ 10 | 3.3 | 100.0 | 100.0 | 45.2 |
≥ 11 | 2.2 | 100.0 | 100.0 | 44.9 |