Table 2.

Inflammatory cell count of participants with bronchiectasis, asthma, COPD and healthy controls

	Bronchiectasis	COPD	Asthma	Healthy	P value*
Total cells (×106/mL)	0.62 (0.19–1.74)†	0.83 (0.16–1.88)†	0.16 (0.09–0.34)‡§	0.08 (0.05–0.21)	<0.001
Viability (%)	82.26 (75.00–91.67)†	87.75 (73.60–92.95)†	77.78 (62.30–88.00)	72.22 (50.00–75.00)	0.005
Neutrophils (%)	67.50 (41.00–84.25)†	77.25 (73.00–85.13)†	58.00 (24.50–72.50)‡	28.25 (14.75–63.50)	<0.001
Neutrophils (×104/mL)	43.20 (5.21–164.43)†	60.35 (13.31–149.70)†	8.24 (3.12–25.01)§‡	3.18 (1.51–5.03)	<0.001
Eosinophils (%)	1.00 (0.50–6.50)	3.75 (1.13–8.88)†	2.25 (1.00–11.75)†	1.00 (0.75–1.25)	0.016
Eosinophils (×104/mL)	0.75 (0.40–2.76)†	1.89 (1.03–4.03)†	0.63 (0.14–3.07)†	0.09 (0.05–0.23)	<0.001
Macrophages (%)	18.75 (11.00–34.75)	15.50 (8.50–20.03)†	25.00 (9.25–39.25)	29.25 (17.00–63.12)	0.025
Macrophages (×104/mL)	12.40 (5.94–24.42)†	9.66 (2.91–18.24)	4.24 (2.00–7.77)§	2.10 (1.42–6.43)	0.002
Lymphocytes (%)	0.75 (0.00–1.50)	0.38 (0.00–1.25)	0.50 (0.00–1.50)	1.5 (0.25–5.13)	0.058
Lymphocytes (×104 cells/mL)	0.30 (0.00–1.02)	0.18 (0.00–0.89)	0.09 (0.00–0.37)	0.18 (0.05–0.42)	0.459
Columnar epithelial cells (%)	1.75 (0.75–10.50)	0.25 (0.00–2.50)†	4.50 (1.50–10.75)‡	9.50 (4.88–23.63)	<0.001
Columnar epithelial cells (×104/mL)	1.99 (0.48–2.67)‡	0.28 (0.00–0.59)†	1.00 (0.35–1.98)‡	0.88 (0.38–2.38)	<0.001

Data are presented as median (IQR; Q1–Q3) unless otherwise stated.

*Kruskal-Wallis test.

†P<0.0125 compared with healthy controls.

‡P<0.0125 compared with COPD.

§P<0.0125 compared with bronchiectasis.

COPD, chronic obstructive pulmonary disease.