3

Outcomes and exposures in children participating and nonparticipating in skin­prick testing (SPT)

With SPTWithout SPT
Current asthma#4.4 (3.7–5.4)6.1 (5.0–7.3)
Current wheeze#8.2 (7.1–9.4)9.6 (8.3–11.1)
Morning cough#18.9 (17.3–20.6)18.7 (16.9–20.6)
Hay fever#13.1 (11.8–14.6)9.7 (8.4–11.2)
No traffic count <50 m83.4 (81.8–84.9)84.1 (82.3–85.8)
Low traffic counts5.3 (4.5–6.3)5.4 (4.4–6.6)
Medium traffic counts+5.7 (4.8–6.7)5.4 (4.4–6.5)
High traffic counts§5.6 (4.7–6.6)5.2 (4.2–6.3)
  • Data are presented as % (95% confidence interval)

  • #: with respective symptoms during last 12 months

  • : 2600–15000 vehicles·day−1

  • +: 15001–30000 vehicles·day−1

  • §: >30000 vehicles·day−1, in street segment <50 m away from home