Urinary LTE4 levels in acute asthma and at follow up by subgroup of percentage predicted FEV1 (</⩾ median)
| LTE4 levels | ||||
|---|---|---|---|---|
| Acute period | Follow up period | |||
| N | Mean†(95% CI) | N | Mean†(95% CI) | |
| †Geometric mean. | ||||
| FEV1 (% predicted) | ||||
| < median | 87 | 144.9 (120.3 to 174.5) | 68 | 102.4 (80.6 to 130.0) |
| ⩾ median | 87 | 88.2 (74.2 to 104.8) | 70 | 59.7 (49.3 to 72.2) |
| Change in LTE4 levels (acute to follow up) | ||||
| Change in % predicted FEV1 | ||||
| < median | 69 | −12.2 (−23.8 to 1.2) | ||
| ⩾ median | 68 | −45.3 (−52.8 to −36.6) | ||