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The author has added a correlation matrix to the supplemental materials.
The author has added several examples of stepwise regression model use to the Introduction section to help ground readers in the validity of this approach in similar applications.
The author has made the suggested points in the revised Limitations section of the Discussion.
All data sets and regression model details have been added for each state to the Multimedia Appendices section.
The author has changed the conditional formatting to red and blue in Figure 3.