Table 2

Summary of collagen type IV vessel staining in airway biopsy specimens

Patient groupTotal area
(mm2× 10−2)		No. vessels/mm2% VascularityVessel size (μm2)
Asthma/No ICS (n = 7)6.22 (5.76–6.66)485 (390–597)2-150 15.6 (13.1–18.0)† 342 (225–449)
Asthma/ICS (n = 15)5.88 (4.96–6.75)421 (281–534)11.4 (9.1–14.9)2-152 334 (219–312)
Non-asthmatic controls (n = 11)6.37 (6.02–6.73)329 (248–376)10.1 (8.4–13.3)320 (224–448)
p value0.710.0890.0090.63

  • Values are means (interquartile ranges).

  • ↵2-150 p<0.05, †p<0.01 compared with non-asthmatic controls.

  • ↵2-152 p<0.01 compared with patients with asthma/no ICS.