Table 3

Per cent change (and 95% CIs) in cardiovascular and respiratory hospital admissions associated with an IQR increase in traffic-related pollutants after weekly exposure (lags 0–6) in London, UK for 2011–2012

Indicator/pollutantsCVD admissions % (95% CI)Respiratory admissions % (95% CI)
15–64 years65+ years0–14 years15–64 years65+ years
General traffic
 NOx−0.92 (−2.98 to 1.18)0.20 (−1.38 to 1.80)4.01 (0.76 to 7.37)−1.67 (−3.70 to 0.39)−5.13 (−6.98 to −3.24)
 NOx—urban−0.37 (−2.43 to 1.73)0.45 (−1.12 to 2.04)3.86 (0.67 to 7.16)−0.95 (−2.97 to 1.11)−4.77 (−6.61 to −2.90)
Petrol vehicle exhaust
 CO1.03 (−1.85 to 3.99)−1.18 (−3.31 to 1.01)4.94 (0.11 to 10.00)−2.51 (−5.29 to 0.36)−8.81 (−11.28 to −6.28)
 CO—urban2.52 (0.17 to 4.92)−1.08 (−2.82 to 0.69)4.02 (0.24 to 7.93)−0.31 (−2.64 to 2.07)−3.68 (−5.87 to −1.43)
Diesel vehicle exhaust
 EC1.39 (−1.59 to 4.45)2.36 (0.05 to 4.73)1.64 (−2.85 to 6.35)−1.62 (−4.54 to 1.39)−2.97 (−5.69 to −0.18)
 EC—urban1.46 (−0.93 to 3.91)1.65 (−0.18 to 3.52)2.59 (−1.45 to 6.79)0.56 (−1.96 to 3.14)−0.02 (−2.38 to 2.40)
 BC0.13 (−2.84 to 3.19)1.49 (−0.82 to 3.86)4.01 (−0.70 to 8.94)−0.87 (−3.84 to 2.21)−3.11 (−5.91 to −0.23)
 BC—urban0.49 (−3.00 to 4.11)2.13 (−0.57 to 4.91)1.34 (−3.76 to 6.70)0.64 (−2.88 to 4.29)−0.40 (−3.61 to 2.91)
Vehicle non-exhaust
 Cu2.23 (−0.39 to 4.91)1.11 (−0.88 to 3.14)−5.60 (−9.28 to −1.77)−1.98 (−4.58 to 0.70)−2.13 (−4.57 to 0.36)
 Zn0.91 (−1.96 to 3.87)0.12 (−2.08 to 2.37)−4.26 (−8.24 to −0.11)−3.17 (−6.00 to −0.25)−2.53 (−5.15 to 0.16)
 Al0.75 (−2.01 to 3.59)0.32 (−1.78 to 2.47)−6.43 (−11.08 to −1.55)2.46 (−0.50 to 5.50)4.49 (1.62 to 7.473)
  • EC/BC and metals are adjusted for PM mass.

  • CVD, cardiovascular disease; PM, particulate matter.