Country-specific ORs (95% CIs) of antihypertensive use related to aircraft noise per 10 dB
| Medication group | Noise source | Country | OR (95% CI) | N |
| Antihypertensives | LAeq,16h Aircraft | UK | 1.35 (1.13 to 1.60) | 584 |
| Germany | 1.08 (0.95 to 1.23) | 969 | ||
| Netherlands | 1.12 (0.91 to 1.39) | 871 | ||
| Sweden | 0.89 (0.76 to 1.04) | 991 | ||
| Greece | 1.09 (0.89 to 1.34) | 615 | ||
| Italy | 0.82 (0.71 to 0.96) | 612 | ||
| Lnight Aircraft | UK | 1.34 (1.14 to 1.57) | 584 | |
| Germany | 1.05 (0.93 to 1.19) | 969 | ||
| Netherlands | 1.19 (1.02 to 1.38) | 871 | ||
| Sweden | 1.05 (0.91 to 1.22) | 990 | ||
| Greece | 1.03 (0.83 to 1.28) | 615 | ||
| Italy | 0.85 (0.73 to 1.00) | 612 |
The hierarchical structure of each logistic regression model assumed a random intercept that accounts for differences in the use of medication between countries and a random slope to account for differences between countries in the effect of aircraft noise on medication use, and adjustment was made for age, sex, BMI, alcohol intake, education, exercise and smoking status.
For each of the aircraft noise models (LAeq,16h and Lnight), adjustment was made for exposure to road traffic noise (LAeq,24h).