Table 2.

Correlations between muscle cytokine levels and clinical parameters

	IL5	IL8	IL1β	IL10	TNFα	TNFRI	TNFRII
FEV1
r	−0.49	−0.52	−0.50	−0.40	−0.51		−0.57
p-value	<0.01	<0.005	<0.005	<0.05	<0.005		<0.001
QMVC
r	−0.41	−0.48	−0.46	−0.39	−0.55	−0.41	−0.54
p-value	<0.05	<0.05	<0.01	<0.05	<0.005	<0.05	<0.005
6MWD
r	−0.46	−0.59	−0.40		−0.58	−0.42	−0.53
p-value	<0.05	<0.005	<0.05		<0.005	<0.05	<0.005

Note: Correlations (r- and p-values) between vastus lateralis cytokines and parameters of lung function, exercise tolerance and muscle function.

Abbreviations: 6MWD, 6-minute walking distance; FEV₁, forced expiratory volume in 1 second; QMVC, quadriceps maximal voluntary contraction.