Table 2.

Induced sputum cells in mild and moderate COPD subjects

	All patients (n=29)	Patients with BHR (n=12)	Patients without BHR (n=17)	P-value*
Macrophages (%)	6.6 (4.6–9.5)	7.5 (2.5–8.6)	6.6 (5.3–10.9)	0.578
Neutrophils (%)	78 (73–84)	78.1 (68.1–85.5)	79 (76.3–83)	0.703
Eosinophils (%)	2 (1–4.6)	3.4 (1.2–5.2)	1.6 (0.8–2.1)	0.046*
Lymphocytes (%)	0.2 (0–0.4)	0.1 (0–0.4)	0.2 (0–0.5)	0.577
Epithelial cells (%)	11.5 (5.6–15.6)	10.7 (5.3–18.1)	12.4 (5.6–15.1)	0.836

Notes: Values are expressed as median (interquartile range). Comparisons between variables were determined by unpaired t-test.

^*Patients with BHR vs patients without BHR.

Abbreviation: BHR, bronchial hyperresponsiveness.