Accuracy of predicting low albumin levels based on pit recovery time of less than 40 s in lower leg oedema.
Serum albumin (mg/dL) | Sensitivity (95% CI) | Specificity (95% CI) | Positive LR (95% CI) | Negative LR (95% CI) | P value |
<2.0 | 0.50 (0.01 to 0.99) | 0.60 (0.51 to 0.69) | 1.26 (0.31 to 5.13) | 0.83 (0.21 to 3.34) | 1 |
<2.5 | 0.36 (0.13 to 0.65) | 0.60 (0.50 to 0.69) | 0.89 (0.42 to 1.85) | 1.08 (0.71 to 1.64) | 1 |
<3.0 | 0.37 (0.20 to 0.56) | 0.59 (0.49 to 0.69) | 0.90 (0.53 to 1.53) | 1.07 (0.78 to 1.48) | 0.83 |
<3.5 | 0.42 (0.28 to 0.57) | 0.61 (0.49 to 0.72) | 1.08 (0.69 to 1.67) | 0.95 (0.71 to 1.28) | 0.85 |
LR, likelihood ratio.