Table 3 Descriptive statistics for the PAD-US-AR and other nature exposure metrics.
From: The PAD-US-AR dataset: Measuring accessible and recreational parks in the contiguous United States
Counties | Tracts | |||||||
|---|---|---|---|---|---|---|---|---|
N | Med | IQR | Range | N | Med | IQR | Range | |
Nationwide | ||||||||
Public park cover | 3108 | 0.04 | 0.12 | 0.97 (0–0.97) | 70580 | 0.03 | 0.07 | 1 (0–1) |
Tree canopy cover | 3108 | 0.27 | 0.47 | 0.87 (0–0.87) | 70580 | 0.13 | 0.30 | 0.93 (0–0.93) |
NDVI annual average | 3108 | 0.53 | 0.22 | 0.66 (0.12–0.78) | 70527 | 0.46 | 0.21 | 0.82 (0.02–0.83) |
NDVI summertime max | 3108 | 0.82 | 0.19 | 0.79 (0.13–0.93) | 70446 | 0.65 | 0.31 | 1.04 (−0.11–0.93) |
Northeast | ||||||||
Public park cover | 217 | 0.11 | 0.12 | 0.79 (0.01–0.79) | 13022 | 0.05 | 0.08 | 0.88 (0–0.88) |
Tree canopy cover | 217 | 0.53 | 0.24 | 0.75 (0.03–0.77) | 13022 | 0.24 | 0.37 | 0.83 (0–0.83) |
NDVI annual average | 217 | 0.58 | 0.05 | 0.43 (0.22–0.65) | 12970 | 0.49 | 0.23 | 0.69 (0.02–0.71) |
NDVI summertime max | 217 | 0.86 | 0.07 | 0.57 (0.35–0.93) | 12893 | 0.71 | 0.29 | 1.04 (−0.11–0.93) |
Midwest | ||||||||
Public park cover | 1055 | 0.02 | 0.05 | 0.7 (0–0.7) | 16762 | 0.04 | 0.07 | 0.88 (0–0.88) |
Tree canopy cover | 1055 | 0.08 | 0.21 | 0.75 (0–0.75) | 16762 | 0.10 | 0.16 | 0.78 (0–0.78) |
NDVI annual average | 1055 | 0.45 | 0.11 | 0.41 (0.25–0.66) | 16762 | 0.44 | 0.11 | 0.65 (0.02–0.67) |
NDVI summertime max | 1055 | 0.84 | 0.10 | 0.72 (0.2–0.91) | 16762 | 0.71 | 0.21 | 0.88 (0.04–0.92) |
South | ||||||||
Public park cover | 1422 | 0.03 | 0.09 | 0.7 (0–0.7) | 25601 | 0.02 | 0.06 | 0.91 (0–0.91) |
Tree canopy cover | 1422 | 0.47 | 0.37 | 0.87 (0–0.87) | 25601 | 0.26 | 0.36 | 0.93 (0–0.93) |
NDVI annual average | 1422 | 0.63 | 0.11 | 0.57 (0.17–0.74) | 25600 | 0.55 | 0.17 | 0.69 (0.08–0.77) |
NDVI summertime max | 1422 | 0.83 | 0.11 | 0.7 (0.21–0.91) | 25596 | 0.70 | 0.24 | 0.84 (0.09–0.93) |
West | ||||||||
Public park cover | 414 | 0.40 | 0.47 | 0.97 (0–0.97) | 15195 | 0.04 | 0.10 | 1 (0–1) |
Tree canopy cover | 414 | 0.09 | 0.21 | 0.66 (0–0.66) | 15195 | 0.02 | 0.06 | 0.74 (0–0.74) |
NDVI annual average | 414 | 0.31 | 0.15 | 0.66 (0.12–0.78) | 15195 | 0.31 | 0.17 | 0.78 (0.05–0.83) |
NDVI summertime max | 414 | 0.46 | 0.24 | 0.74 (0.13–0.88) | 15195 | 0.36 | 0.22 | 0.85 (0.05–0.91) |
