Table 4.
Hazard ratios (95% confidence intervals) for associations between aircraft noise exposure (DNL) and cardiovascular mortality in NHS.
| DNL, dB(A) | Cases | Person-years | Basica | Parsimoniousb | Extendedc |
|---|---|---|---|---|---|
| 2-Category | |||||
| ≥50 | 239 | 59,071 | 1.15 (1.01, 1.32) | 1.07 (0.94, 1.23) | 1.03 (0.90, 1.19) |
| <50 | 2,899 | 799,674 | Ref | Ref | Ref |
| 4-Category | |||||
| ≥55 | 75 | 19,175 | 1.10 (0.88, 1.39) | 1.00 (0.79, 1.27) | 0.99 (0.78, 1.25) |
| 50–54 | 164 | 39,896 | 1.18 (1.01, 1.39) | 1.11 (0.94, 1.30) | 1.06 (0.90, 1.24) |
| 45–49 | 297 | 82,873 | 1.03 (0.91, 1.16) | 0.99 (0.88, 1.12) | 1.00 (0.88, 1.13) |
| <45 | 2,602 | 716,800 | Ref | Ref | Ref |
| Continuous per 10 dB(A) | 3,138 | 858,745 | 1.07 (0.88, 1.30) | 0.98 (0.81, 1.20) | 0.96 (0.78, 1.17) |
aBasic models are stratified by age and calendar year.
bParsimonious models are stratified by age and time period and adjusted for race/ethnicity, marital status, spouse’s education attainment, nSES score, region of residence, PM2.5, and population density.
cExtended models are stratified by age and time period and adjusted for race/ethnicity, marital status, spouse’s education attainment, nSES score, region of residence, PM2.5, population density, physical activity, smoking status, alcohol use, AHEI diet score, menopausal status, and family history of MI.
AHEI indicates alternate healthy eating index.