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Table 4 Proper thresholds identified for the 6 infectious diseases in the Songjiang District of Shanghai, China

From: How to select a proper early warning threshold to detect infectious disease outbreaks based on the China infectious disease automated alert and response system (CIDARS)

Infectious diseases

Proper Early-alert

Thresholds

Se (%)

Sp (%)

YI (%)

CR

Thresholds recommended by the China CDC

Chickenpox

P75

100.00

90.20

90.20

0.90

P80

Mumps

P80

100.00

96.15

96.15

0.96

P80

Influenza

P75

100.00

64.00

64.00

0.65

P80

Rubella

P45

50.00

60.87

11.87

0.60

P80

HFMD

P75

100.00

33.33

33.33

0.71

P80

Scarlet fever

P80

100.00

55.00

55.00

0.65

P80