Table 3

 Median (range) leukotriene levels on the three visit days

Visit 1Visit 2Visit 3
WBC, white blood cells; ICS, inhaled corticosteroids.
Within each study group there was no significant difference between the three study days (ANOVA) for any of the variables.
Blood ex vivo LTB4 (ng/106 WBC)
    Healthy subjects9.14 (4.09–18.46)9.19 (4.65–24.78)10.38 (3.66–24.92)
    Asthma, not ICS6.32 (3.31–13.56)8.02 (2.47–18.14)9.47 (5.26–17.97)
    Asthma ICS8.04 (4.34–21.55)10.55 (7.43–21.20)11.80 (6.45–16.54)
Baseline urinary LTE4 (ng/mmol creatinine)
    Healthy subjects22.64 (16.34–48.15)23.78 (14.44–46.30)20.29 (14.16–36.23)
    Asthma, not ICS24.41 (16.85–51.96)20.30 (15.38–56.13)28.63 (13.50–43.81)
    Asthma ICS22.92 (11.69–59.35)20.92 (11.90–55.00)21.73 (11.64–57.76)