Exposure winter evenings (6pm-midnight), concentration = 2.11 μg/m3 | Exposure 24-hr, concentration = 3.55 μg/m3 | ||||||
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Health endpoint | Age group | Total pop. at risk | % exposed | Annual no. cases/days | 95% CI | Annual no. cases/days | 95% CI |
Chronic bronchitis | 18+ | 3,012,306 | 4.30 | 55* | (5–98) | 91* | (8–163) |
Cardiovascular hospital admissions | All ages | 4,467,854 | 4.45 | 4* | (2–5) | 6* | (3–9) |
Respiratory hospital admissions | All ages | 4,467,854 | 4.45 | 9* | (7–10) | 15* | (12–17) |
Restricted activity days | 18-64 | 2,841,127 | 4.30 | 38,000** | (33,400-42,600) | 63,300** | (55,600-71,100) |
Lower respiratory symptom days (inc cough) | 5-14 | 602,919 | 4.75 | 30,100** | (15,000-45,400) | 50,200** | (25,000-75,700) |
All-cause mortality | 30+ | 2,559,015 | 4.20 | 21* | (7–38) | 34* | (11–63) |