. 2006 Sep 1;145(3):474–479. doi: 10.1111/j.1365-2249.2006.03167.x

Table 2.

Absolute and differential cell counts in bronchoalveolar lavage fluid.

	Never smokers (n = 7)	Smokers with normal lung function (n = 16)	COPD (n = 14)
Total cell count ( × 10³/ml)	65·6 ± 17·6	271 ± 58^*	182 ± 33
Macrophages (%)	92 ± 1	92 ± 2	85 ± 3
Lymphocytes (%)	7 ± 1	7 ± 2	9 ± 2
Neutrophils (%)	1 ± 0·4	1 ± 0·2	3 ± 2
BAL recovery (ml)	105 ± 7	94 ± 4^†	70 ± 7^**

P < 0·05 versus never smokers

^{^**}

P < 0·01 versus never smokers

^†

P < 0·01 versus chronic obstructive pulmonary disease (COPD).