Skip to main content

Table 4 Comparison of the sensitivity, specificity, positive and negative predictive values, Kappa coefficient and rate of underestimation for each laboratory method with the quantitative urine protein-to-creatinine (P/C) ratio

From: The efficacy of semi-quantitative urine protein-to-creatinine (P/C) ratio for the detection of significant proteinuria in urine specimens in health screening settings

Testing

Sen (%)

Spe (%)

PPV

NPV

Kappa

Und (%)

Semi-quantitative P/C ratio (excluding diluted samples)

75.6

95.9

0.72

0.96

0.52

0.37

Semi-quantitative P/C ratio (including diluted samples)

70.0

95.9

0.75

0.95

0.56

0.37

Dipstick protein

45.0

98.3

0.83

0.91

0.37

8.39

Quantitative protein

50.1

98.2

0.84

0.92

0.40

7.61

  1. Sen sensitivity, Spe specificity, PPV positive predictive value, NPV negative predictive value, Kappa Kappa coefficient, Und rate of underestimation