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Table 2 Number of studies presenting injury maps and the type of measure represented (n = 62 studies)

From: An overview of geospatial methods used in unintentional injury epidemiology

  Type of map
Dot Choropleth Classed symbol
Injury cause categories
 Road traffic (n = 33) 10 24 1
 Falls (n = 10) 3 6 1
 Burns (n = 9) - 8 1
 Drowning (n = 4) 1 3 -
 Occupational (n = 2) - 2 -
 Aviation-related (n = 2) - 2 -
 Natural disasters (n = 1) 1 1 -
 Dog-bite (n = 1) - 1 -
 Total number of studiesa 15 47 3
Summary measures
 Incidence rates - 27 -
 Relative risk - 10 -
 Standardised mortality ratio - 6 -
 Frequency or count 15 5 3
 Total number of studiesb 15 48 3
  1. aSome studies reported more than one type of map, so the sum is not equal to n = 62. bOne study reported choropleth maps with two summary measures, so the sum is not equal to n = 47