Cut-off point on dipstick score (% at or above cut-off point) | Sensitivity, % | Specificity, % | PPV, % | NPV, % | % correctly classified | LR +ve test | LR –ve test |
---|---|---|---|---|---|---|---|
≥0 (100) | 100 | 0 | – | – | 66 | 1 | – |
≥1 (96) | 98 | 8 | 68 | 67 | 68 | 1.1 | 0.3 |
≥2 (71) | 80 | 46 | 74 | 54 | 69 | 1.5 | 0.4 |
≥3 (29) | 36 | 84 | 82 | 40 | 52 | 2.3 | 0.8 |
>3 (0) | 0 | 100 | – | – | 34 | – | 1 |
↵a Score weighted according to the rounded logistic coefficients based on the sum of: urine cloudiness = 1, burning dysuria any degree = 1, nocturia any degree = 1. LR = likelihood ratio. NPV = negative predictive value. PPV = positive predictive value.