The hierarchy, positioned in polar coordinates using Vega’s tree, is a visual representation of the types and relationships of environmental factors (Meteorological, Human Activity, Socioeconomic and Health) impacting the course of the COVID-19 pandemic. The study data are comprised of representative sample of relevant literature. The node size (hovered-over value) highlights the number of the coded finding(s) corresponding to the relative article(s). The table outlines the keys for the coded findings describing the relationship in terms of: Intensity, Polarity, and Measure (Note: Positive: indicates direct relation, Negative indicates inverse relation, and R a relation).
| Intensity | Polarity | Measure | |||
|---|---|---|---|---|---|