Fig 1.
HTrack main tab serves as the general area for site navigation and data entry.
This tab incorporates a live map (not shown) with zoom capabilities and a location/navigation toggle (current location appears as a red dot, not shown). The box to the right is the data entry component and is activated by pressing a house marker on the map. The data table below is populated upon data entry and saving. Coordinates are removed from the image to protect participant privacy.
Fig 2.
Representation of HTrack’s main map and navigation area.
This map recreates how HTrack’s main map is seen upon usage. Street names have been removed to protect participant privacy.
Fig 3.
Blue markers were used for structures that needed an initial visit. Orange markers were used for structures that required unscheduled follow-up visits (a black outline indicated that the structure had already been visited for the day, but still required a follow-up visit). Among scheduled visits, black markers were used for visits scheduled on a Saturday. Grey markers were used for visits scheduled on a weekday. Pink was used for homes that had a visit scheduled for that specific day. Green was used for homes that required no more visits, regardless of recruitment status.
Fig 4.
HTrack edit tab serves as the area to perform any changes to the data already entered.
This tab allows the user to edit several rows of data after saving. The initial visit row cannot be edited or deleted (visit 0). Coordinates are removed from the image to protect participant privacy.
Fig 5.
HTrack statistics tab serves as the data visualization area to monitor daily field progress.
This area shows the current progress by cluster or overall. Graphs and tables can be downloaded as needed.
Table 1.
Data table fields used for the COPA project.
Fig 6.
COPA communities, including all 38 clusters, are shown in light blue. Communities with asterisks indicate communities with apartment buildings.
Table 2.
Final visit outcomes among households visited.