Table 3.
Baseline cross-sectional associations between BMI (kg/m2) residential property values, and built environment characteristics (n = 819).
| Characteristic | Mean | (95% CI) | P-value |
|---|---|---|---|
| Overall | 30.0 | (29.5, 30.4) | – |
| Socioeconomic status | |||
| Residential property value, parcel level | |||
| Tertile 1: $10,889 to $130,644 | 30.6 | (29.5, 31.7) | – |
| Tertile 2: $133,974 to $295,000 | 31.0 | (30.1, 31.8) | 0.652 |
| Tertile 3: $300,300 to $1,492,000 | 28.4 | (27.4, 29.3) | 0.012 |
| Built environment | |||
| Residential density, 800 m buffer | |||
| Tertile 1: 0.01 to 3.74 | 30.6 | (29.5, 31.6) | – |
| Tertile 2: 3.74 to 9.01 | 30.3 | (29.5, 31.1) | 0.712 |
| Tertile 3: 9.05 to 104.86 | 29.0 | (28.1, 30.0) | 0.072 |
| Road intersection density, 800 m buffer | |||
| Tertile 1: 0.00 to 0.35 | 30.7 | (29.8, 31.6) | – |
| Tertile 2: 0.35 to 0.57 | 30.3 | (29.5, 31.1) | 0.512 |
| Tertile 3: 0.57 to 1.12 | 28.9 | (28.0, 29.7) | 0.008 |
| Fast-food restaurant availability, 1600 m buffer | |||
| 0 | 30.8 | (29.8, 31.8) | – |
| 1-3 | 30.6 | (29.7, 31.5) | 0.770 |
| 4+ | 29.2 | (28.6, 29.9) | 0.012 |
| Supermarket availability, 1600 m buffer | |||
| 0 | 30.9 | (30.1, 31.8) | – |
| 1+ | 29.5 | (28.9, 30.0) | 0.005 |
BMI = body mass index; CI = confidence interval.
Note: All densities calculated as units per hectare. Residential unit and road intersection densities based on Euclidean distance. Fast-food restaurant and supermarket counts based on network-based buffer. Buffers of 800 m correspond, approximately, to 10-min walkable distance while buffers of 1600 m correspond to a 20-min walkable distance. Models adjust age, gender, race/ethnicity, education, home ownership, and county of residence.
P-values test for differences between the 2nd or 3rd tertile compared to the 1st for density measures, 1–3 or 4+ fast-food restaurants versus 0 for fast-food restaurant availability, and 1+ versus 0 for supermarket availability.