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Table 2 System features. Percentage of people consulting different healthcare providers, percentage of people coded to an indicator, and proportional coverage of each PHE syndromic surveillance system. Upper and lower estimates are presented in brackets

From: A methodological framework for the evaluation of syndromic surveillance systems: a case study of England

System

People consulting healthcare (%)

Estimated current coverage (%)

People coded to an indicator (%)

 

Influenza

Cryptosporidiosis

Influenza

Cryptosporidiosis

Influenza

Cryptosporidiosis

 

National

All sites

National

Location A

Location B

Location C

National

All sites

EDSSS

0.91% (0.5–5.0%)

0.01% (0.0025–0.023%)

7%

15%

23%

47%

6%

75%

GPIHSS

10% (5.0–30.0%)

2.3% (1.0–5.6%)

64%

64%

95%

86%

6%

75%

GPOOHSS

1% (0.5–3.0%)

2.3% (1.0–5.6%)

65%

65%

7%

33%

29%

75%

NHS-111

1.28% (0.25–10.0%)

0.8% (0.1–0.9%)

100%

100%

100%

100%

22%

75%