Table 2.
Logistic regression analysis to estimate the association between built environment variable and mtDNA copy number.
| Variables | ORs (95% CI)a | ORs (95% CI)a |
|---|---|---|
| P value Population density | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 1.11 (0.95, 1.29) | |
| 3rd quartile | 1.15 (0.99, 1.35) | 1.11 (0.98, 1.25) |
| 4th quartile | 1.06 (0.91, 1.23) | |
| P for trend = 0.418 | ||
| Household density | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 1.03 (0.89, 1.20) | |
| 3rd quartile | 1.20 (1.03, 1.40) | 1.24 (1.08, 1.36) |
| 4th quartile | 1.31 (1.11, 1.48) | |
| P for trend = 0.016 | ||
| Intersection density | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 1.06 (0.91, 1.23) | |
| 3rd quartile | 1.03 (0.89, 1.20) | 1.00 (0.88, 1.13) |
| 4th quartile | 0.91 (0.78, 1.06) | |
| P for trend = 0.239 | ||
| Road density | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 1.07 (0.92, 1.25) | |
| 3rd quartile | 1.05 (0.90, 1.22) | 1.01 (0.89, 1.15) |
| 4th quartile | 0.92 (0.79, 1.07) | |
| P for trend = 0.289 | ||
| Road/intersection ratio | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 1.07 (0.92, 1.24) | |
| 3rd quartile | 1.14 (0.97, 1.32) | 1.12 (1.01, 1.27) |
| 4th quartile | 1.17 (1.01, 1.37) | |
| P for trend = 0.030 | ||
| Distance to highway | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 1.03 (0.89, 1.20) | |
| 3rd quartile | 1.14 (0.98, 1.32) | 1.05 (0.93, 1.19) |
| 4th quartile | 0.99 (0.85, 1.16) | |
| P for trend = 0.756 | ||
| Walking time to the nearest park | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 1.00 (0.86, 1.17) | |
| 3rd quartile | 1.03 (0.88, 1.21) | 0.98 (0.86, 1.12) |
| 4th quartile | 0.91 (0.78, 1.06) | |
| P for trend = 0.282 | ||
| Networked distance to the nearest park | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 0.99 (0.85, 1.17) | |
| 3rd quartile | 1.07 (0.91, 1.25) | 0.99 (0.87, 1.13) |
| 4th quartile | 0.92 (0.79, 1.08) | |
| P for trend = 0.400 | ||
| Rundle's LUM | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 0.87 (0.75, 1.01) | |
| 3rd quartile | 1.01 (0.87, 1.17) | 0.93 (0.82, 1.05) |
| 4th quartile | 0.92 (0.79, 1.07) | |
| P for trend = 0.659 | ||
| CDC mRFEI | ||
| 1st quartile | 1.00 | 1.00 |
| 2nd quartile | 1.07 (0.92, 1.25) | |
| 3rd quartile | 1.09 (0.93, 1.26) | 1.10 (0.97, 1.25) |
| 4th quartile | 1.14 (0.98, 1.33) | |
| P for trend = 0.097 | ||
aAdjusted by age, sex, age × sex, BMI, physical activity, and health insurance.