. 2014 Mar 4;65(1):100–110. doi: 10.1111/his.12368

Table 3.

Comparison of the numbers of subpleural cysts with inflammation in Birt–Hogg–Dubé syndrome (BHDS) and primary spontaneous pneumothorax (PSP). Inflammation was examined with regard to the location of the cyst (pleural or basal site) and type of inflammation (cellular or fibrous)

	No. of subpleural cysts examined	No. of cysts with inflammation (%)	Inflammation at pleural site, no. (%)		Inflammation at basal site, no. (%)
Cellular	No. of subpleural cysts examined	No. of cysts with inflammation (%)	Fibrous	Cellular	Fibrous
BHDS	116	79 (68.1)	75 (64.7)	55 (47.4)	19 (16.4)	6 (5.2)
PSP	115	115 (100)	73 (63.5)	115 (100)	56 (48.7)	106 (92.2)
χ²- test		P < 0.001	P = 0.852	P < 0.001	P < 0.001	P < 0.001