Table 4 Analysis of clinical efficacy of the nomogram
From: Establishment and evaluation of a nomogram predicting risks of missed diagnoses of colorectal polyps
Variable | Training cohort (95%CI) | Validation cohort (95%CI) |
|---|---|---|
C-index | 0.765 (0.724–0.807) | 0.726 (0.657–0.794) |
Cut-off score | 152.2 | 152.2 |
Sensitivity, % | 67.1 (59.3–74.2) | 57.1 (45.9–67.7) |
Specificity, % | 75.7 (71.8–79.3) | 79.9 (73.7–85.0) |
Positive predictive value, % | 45.8 (40.9–54.4) | 53.3 (42.6–63.8) |
Negative predictive value, % | 88.2 (84.3–90.2) | 82.3 (76.2–87.1) |
Positive likelihood ratio | 2.8 (2.3–3.3) | 2.8 (2.0–3.9) |
Negative likelihood ratio | 0.43 (0.35–0.54) | 0.54 (0.42–0.69) |