2x2 Gadget In epidemiology, 2 x 2 tables are frequently used to examine the relationship between two or more categorical values. In these tables, usually an “exposure” variable is considered the risk factor. The outcome variable is considered the disease of consequence. (e.g. the person had the disease or outcome of interest or they did not). Values of the first variable will appear on the left margin of the table, and those of the second will be across the top of the table. Normally, cells contain counts of records matching the values in corresponding marginal labels. Figure 6.83: 2x2 Gadget Map Gadget The Map gadget allows you to geographically display case data on a map. The mobile version contains the ability to plot GPS coordinates on a Google Map base map. Internet connectivity is required to display maps on your mobile device using Google Maps. For additional mapping functionality, transfer the data to a computer and use the Epi Info™ Maps tool (See Maps). Select Add Map Gadget from the Analyze Data menu options. A Map Settings dialog box appears. Select the field containing the latitude coordinates from the Latitude Field list. Select the field containing the longitude coordinates from the Longitude Field drop-down list. The map appears displaying the location in Google Maps. Figure 6.84: Map Gadget Pie Chart Gadget Pie charts are used for proportional assessment by comparing data elements as percentages or counts against other data elements and against the sum of the data elements. A pie chart is a circle having wedges dividing the circle into sectors that are proportional in area to the quantities of the data sets represented. Figure 6.85: Pie Chart gadget
2x2 Gadget In epidemiology, 2 x 2 tables are frequently used to examine the relationship between two or more categorical values. In these tables, usually an “exposure” variable is considered the risk factor. The outcome variable is considered the disease of consequence. (e.g. the person had the disease or outcome of interest or they did not). Values of the first variable will appear on the left margin of the table, and those of the second will be across the top of the table. Normally, cells contain counts of records matching the values in corresponding marginal labels. Figure 6.83: 2x2 Gadget Map Gadget The Map gadget allows you to geographically display case data on a map. The mobile version contains the ability to plot GPS coordinates on a Google Map base map. Internet connectivity is required to display maps on your mobile device using Google Maps. For additional mapping functionality, transfer the data to a computer and use the Epi Info™ Maps tool (See Maps). Select Add Map Gadget from the Analyze Data menu options. A Map Settings dialog box appears. Select the field containing the latitude coordinates from the Latitude Field list. Select the field containing the longitude coordinates from the Longitude Field drop-down list. The map appears displaying the location in Google Maps. Figure 6.84: Map Gadget Pie Chart Gadget Pie charts are used for proportional assessment by comparing data elements as percentages or counts against other data elements and against the sum of the data elements. A pie chart is a circle having wedges dividing the circle into sectors that are proportional in area to the quantities of the data sets represented. Figure 6.85: Pie Chart gadget