Reticular Basement Membrane Vessels Are Increased in COPD Bronchial Mucosa by Both Factor VIII and Collagen IV Immunostaining and Are Hyperpermeable

Table 1

Demographics.

	Group
	Control (𝑛=8)	COPD (𝑛=28)
Age*, median (interquartile range), years	54 (9)	61 (10)
Gender^†, female (number)	2	9
Pack-year smoking history, median (interquartile range)	0	47 (23)
FEV1/FVC%^¶, median (interquartile range)	79 (17)	57 (16)

* 𝑃=0.1 (Mann-Whitney test).
^†𝑃=0.2 (Fisher’s Exact test).
^¶ 𝑃<0.001.