Table 1.
Surveillance System | Approximate Population Coverage (% of England Population) | Syndromic Indicator | ||
---|---|---|---|---|
Cardiovascular | Respiratory | Others | ||
GP in hours (GPIH) | 35 million (64%) | Myocardial infarction * | Asthma, wheeze | Cerebrovascular accident * |
GP out of hours (GPOOH) | 33 million (60%) | N/A | Asthma, Asthma/Wheeze/Difficulty Breathing | Fever, rash, cerebrovascular accident |
Emergency department (EDSSS) | 35 sentinel EDs † | Myocardial ischaemia | Asthma, Asthma/Wheeze/Difficulty Breathing | Cerebrovascular accident |
* these indicators are not routinely used in the daily syndromic surveillance and are derived from a subset of the GPIH system with a denominator of approximately 5 million patients. † Population coverage not possible due to difficulties in calculating denominator population. N/A no indicators available.