Table 2.
Heat Vulnerability Index Data Sources and Descriptive Statistics
| Category | Data source | Year range | Variable | Mean | SD | (Min, max) |
|---|---|---|---|---|---|---|
| Demographic variables | American Community Survey 5‐Year demographic and housing estimates | 2015–2019 | Percentage population that is Hispanic or Latino | 16.58 | 21.44 | (0, 100) |
| 2015–2019 | Percentage population that is non‐Hispanic African American or Black | 14.08 | 22.25 | (0, 100) | ||
| 2015–2019 | Percentage population that is elderly | 16.54 | 7.91 | (0, 92.2) | ||
| American Community Survey 5‐Year selected economic characteristics | 2015–2019 | Percentage population that is unemployed | 3.54 | 2.49 | (0, 100) | |
| American Community Survey 5‐Year selected social characteristics | 2015–2019 | Percentage population that is living alone | 28.23 | 11.26 | (0, 100) | |
| 2015–2019 | Percentage population that is elderly and living alone | 11.29 | 6.11 | (0, 100) | ||
| 2015–2019 | Percentage population that was born in a foreign country | 12.58 | 13.59 | (0, 100) | ||
| 2015–2019 | Percentage population that is limited English proficient | 7.88 | 10.69 | (0, 100) | ||
| 2015–2019 | Percentage population that is disabled | 11.18 | 6.33 | (0, 100) | ||
| 2015–2019 | Percentage population with less than a high school education | 12.76 | 10.35 | (0, 100) | ||
| American Community Survey 5‐Year poverty status in the past 12 months | 2015–2019 | Percentage population living below the federal poverty level | 14.75 | 11.59 | (0, 100) | |
| Housing variable | American Community Survey 5‐Year physical housing characteristics for occupied Housing Unit | 2015–2019 | Percentage of occupied houses built before 1980 | 60.94 | 26.19 | (0, 100) |
| Underlying health conditions variable | Centers for disease control and prevention. U.S. diabetes surveillance system website | 2014–2018 | Percentage of adults age 20+ diagnosed with diabetes | 6.83 | 1.38 | (0.99, 15.78) |
| American Community Survey 5‐Year age and sex | 2015–2019 | |||||
| Land cover variables | National Neighborhood Data Archive (NaNDA): Land cover by census tract, United States, 2001–2016 | 2016 | Percentage of land covered in high density development | 9.2 | 15.51 | (0, 100) |
| 2016 | Percentage of land covered in non‐green space | 64.89 | 36.66 | (0.03, 100) | ||
| MOD13A2 MODIS/terra vegetation indices 16‐day L3 global 1 km SIN grid V006 a | 2017–2020 | Average summertime enhanced vegetation index (EVI) score | 0.37 | 0.14 | (0, 0.68) | |
| Exposure variable | Daymet: Daily surface weather data on a 1‐km grid for North America, version 4 | 2017–2020 | Average summertime 2m air temperature anomaly (°F) | 2.97 | 6.09 | (−4.51, 40.54) |
a
NASA's Terra and Aqua satellites' Moderate Resolution Imaging Spectroradiometer.