Table 2.

Serum tests and exhaled breath condensates of participants between the cold and warm seasons, combining the exposed and control groups

Variable	Cold season	Warm season	p
Serum test
IL-1β, pg/mL	0.6 [0.0, 2.6]	7.2 [3.5, 7.9]	<0.001
IL-6, pg/mL	2.9 [1.0, 7.7]	10.1 [6.4, 14.8]	<0.001
IL-8, pg/mL	5.0 [2.0, 11.5]	18.8 [13.9, 21.5]	<0.001
IL17-A, pg/mL	2.3 [0.3, 3.1]	9.0 [6.9, 10.5]	<0.001
TNF-α, pg/mL	2.3 [0.7, 3.3]	8.7 [4.5, 11.7]	<0.001
hsCRP, ng/mL	1635.4 [582.8, 3652.8]	1055.6 [377.6, 2120.8]	0.003
PAI-1, ng/mL	10.6 [9.0, 12.6]	20.4 [17.5, 23.1]	<0.001
8-OhdG, ng/mL	12.4 [9.4, 21.8]	10.3 [7.9, 17.8]	0.011
Exhaled breath condensate
IL-1β, pg/mL	2.0 [1.1, 2.8]	2.3 [1.6, 3.4]	0.002
IL-6, pg/mL	5.7 [0.3, 6.6]	8.0 [7.4, 9.6]	<0.001
IL-8, pg/mL	0.0 [0.0, 0.3]	6.3 [5.0, 8.7]	<0.001
IL-17A, pg/mL	0.8 [0.2, 1.3]	2.9 [2.7, 3.4]	0.006
MCP-1, pg/mL	1.8 [1.2, 3.2]	4.5 [4.3, 4.8]	0.013

Data were presented as median (25^th and 75^th percentiles)

Abbreviations: IL, interleukin; TNF-α, tumor necrosis factor-alpha; hs-CRP, high-sensitivity C-reactive protein; PAI-1, plasminogen activator inhibitor-1; 8-OHdG, 8-hydroxy-2-deoxyguanosine; MCP-1, monocyte chemoattractant protein-1