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Table 1 Coverage using population density or aggregated municipality incidence data, for various HEMS target times, in greenfield scenario

From: Comparing population and incident data for optimal air ambulance base locations in Norway

Data used Time threshold Target coverage Number of bases needed Percentage of population covered Percentage of incidents covered
Population 45 90% 5 93.32 78.31
Population 45 95% 6 96.29 83.55
Population 45 100% 10 100.00 100.00
Incidents 45 90% 7 96.18 94.73
Incidents 45 95% 8 98.22 97.91
Incidents 45 100% 10 100.00 100.00
Population 30 90% 9 91.97 69.30
Population 30 95% 12 96.36 81.88
Population 30 100% 22 100.00 100.00
Incidents 30 90% 14 93.81 92.04
Incidents 30 95% 16 94.76 96.27
Incidents 30 100% 22 100.00 100.00