Table 3.
Association between traffic noise (LDN) and the prevalence of hypertension and isolated systolic hypertension, adjusted for potentially confounding factors and air pollution (PM2.5).
| Adjustment | City of Augsburg | Greater Augsburg | ||
|---|---|---|---|---|
| n | OR (95% CI) per 10 dB(A) | n | OR (95% CI) per 10 dB(A) | |
| Hypertension | ||||
| Crude | 1,933 | 1.10 (0.98, 1.25) | 2,328 | 1.00 (0.88, 1.13) |
| Crude (complete data) | 1,893 | 1.11 (0.98, 1.26) | 2,273 | 0.98 (0.87, 1.12) |
| Covariatesa | 1,893 | 1.16 (1.00, 1.35) | 2,273 | 0.94 (0.81, 1.09) |
| Covariates (no railway)b | 1,415 | 1.24 (1.04, 1.47) | 1,905 | 0.93 (0.79, 1.09) |
| Covariates + PM2.5 | 1,893 | 1.11 (0.94, 1.30) | 2,273 | 0.93 (0.79, 1.08) |
| Covariates + PM2.5 (no railway)b | 141 | 1.14 (0.94, 1.39) | 1,905 | 0.91 (0.77, 1.08) |
| Covariates (residence > 10 years) | 894 | 1.19 (0.97, 1.46) | 1,289 | 1.00 (0.84, 1.20) |
| Covariates (residence ≤ 10 years) | 956 | 1.16 (1.00, 1.35) | 890 | 0.94 (0.81, 1.09) |
| Covariates + PM2.5 (residence > 10 years) | 894 | 1.12 (0.90, 1.40) | 1,289 | 0.99 (0.82, 1.19) |
| Covariates + PM2.5 (residence ≤ 10 years) | 956 | 1.11 (0.87, 1.42) | 890 | 0.86 (0.63, 1.16) |
| Isolated systolic hypertension | ||||
| Crude | 1,601 | 1.38 (1.10, 1.73) | 1,887 | 0.91 (0.73, 1.14) |
| Covariatesa | 1,601 | 1.48 (1.16, 1.89) | 1,887 | 0.88 (0.69, 1.12) |
| Covariates + PM2.5 | 1,601 | 1.43 (1.10, 1.86) | 1,887 | 0.90 (0.69, 1.15) |
| Covariates + PM2.5 (no railway)b | 1,193 | 1.46 (1.05, 2.02) | 1,590 | 0.89 (0.68, 1.18) |
| Covariates + PM2.5 (residence > 10 years) | 682 | 1.18 (0.83, 1.68) | 984 | 1.02 (0.75, 1.38) |
| Covariates + PM2.5 (residence ≤ 10 years) | 878 | 1.68 (1.08, 2.61) | 822 | 0.72 (0.41, 1.25) |
| aAdjusted for age, sex, smoking, alcohol intake, BMI, physical activity, SES. bSubgroup with no railway noise (estimated). | ||||