Cases | Controls | ORb | 95% CI | Controls, stratified by modelled residential outdoor NOx-levela | |||
---|---|---|---|---|---|---|---|
N (%) | N(%) | ≤20 μg/m3 NOX N (%) | >20 μg/m3 NOX N (%) | ||||
Smoking | Yes | 1139 (26) | 629 (13) | 2.8 | 2.5–3.2 | 457 (12) | 172 (17) |
No | 3236 (74) | 4087 (87) | 1 | 3250 (88) | 837 (83) | ||
Diabetes | Yes | 934 (21) | 501 (11) | 2.1 | 1.8–2.4 | 388 (10) | 113 (11) |
No | 3441 (79) | 4215 (89) | 1 | 3319 (90) | 896 (89) | ||
Medication for hypertension | Yes | 1974 (45) | 1482(31) | 1.7 | 1.5–1.8 | 1161 (31) | 321 (32) |
No | 2401(55) | 3234 (31) | 1 | 2546 (69) | 688 (68) | ||
Total | 4375 | 4716 |