Table 4.

Differences in hyperinflation between exacerbations with and without a viral or bacterial infection

	Static hyperinflation					DH
	IC admission (l)	IC discharge (l)	IC stable state (l)	IC change (l)	p-value	DH admission (IC change in l)	DH stable state (IC change in l)	p-value
Bacterial infection	2.3±0.7	2.5±0.7	2.7±0.8	−0.4	<0.01*	−0.8±0.3	−1.0±0.5	0.4
No bacterial infection	2.0±0.5	2.0±0.6	2.1±0.5	−0.2	0.29	−0.7±0.3	−0.7±0.3	0.9
Viral infection	2.1±0.7	2.3±0.7	2.4±0.7	−0.2	0.02*	−0.8±0.3	−0.8±0.3	1.0
No viral infection	2.0±0.6	1.9±0.6	2.4±0.7	−0.3	0.03*	−0.7±0.3	−0.8±0.5	0.2

Notes: Data are presented as mean±standard deviation. p-value: difference between admission and stable state by paired t-test.

^*p<0.05 in paired t-test.

Abbreviations: IC, inspiratory capacity; DH, dynamic hyperinflation.