Table 2

Urinary LTE4 levels in acute asthma and at follow up by subgroup of percentage predicted FEV1 (</⩾ median)

LTE4 levels
Acute periodFollow up period
NMean†(95% CI)NMean†(95% CI)
†Geometric mean.
FEV1 (% predicted)
    < median87144.9 (120.3 to 174.5)68102.4 (80.6 to 130.0)
    ⩾ median8788.2 (74.2 to 104.8)7059.7 (49.3 to 72.2)
Change in LTE4 levels (acute to follow up)
Change in % predicted FEV1
    < median69−12.2 (−23.8 to 1.2)
    ⩾ median68−45.3 (−52.8 to −36.6)