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Table 2 Estimated Relative Coverage Frequencies of a Nominal 95% Interval w/o Variance Correction.

From: Reporting incidence from a surveillance system with an operational case definition of unknown predictive value positive

 

PVP = 0.70

PVP = 0.80

PVP = 0.90

f

λ = 100

λ = 500

λ = 1000

λ = 100

λ = 500

λ = 1000

λ = 100

λ = 500

λ = 1000

0.10

0.73

0.70

0.68

0.78

0.77

0.76

0.86

0.84

0.84

0.25

0.84

0.85

0.85

0.87

0.88

0.88

0.92

0.91

0.91

0.50

0.91

0.92

0.91

0.92

0.93

0.93

0.93

0.94

0.94