Table 3.
Cross-sectional association between residential distance to nearest major roadway and percent difference (95% confidence interval) in serum leptin levels among participants from the MOBILIZE Boston Study
| Residential Distance to the Nearest Major Roadway | |||||||
|---|---|---|---|---|---|---|---|
| <100 m (n=61) |
100–250 m (n=74) |
250–500 m (n=119) |
500–1000 m (n=198) |
>1000 m (n=215) |
Ptrend | Log Distancea | |
| Model 1b | 7% (−26%, 55%) | −25% (−47%, 4%) | −12% (−34%, 18%) | −23% (−40%, −1%) | 1.0 (Ref) | 0.94 | 10% (−10%, 35%) |
| Model 2c | 1% (−28%, 42%) | −28% (−47%, −3%) | −3% (−25%, 26%) | −17% (−34%, 3%) | 1.0 (Ref) | 0.64 | 4% (−13%, 25%) |
a
Expressed as the % difference in leptin levels comparing participants living 50 vs 1000m from a major roadway;
b
adjusted for age, sex, race, season, day of week, smoking, alcohol consumption, physical activity, household income, education and neighborhood socioeconomic status.
c
additionally adjusted for body mass index, diabetes mellitus, hypertension, and hyperlipidemia.