Table 2 Pre-exposure values of biological endpoints

eNO (ppb)

19

22 (8–66)

24 (9–61)

19 (9–50)

0.14

FVC (L)

18

4.6 (3.3-6.8)

4.7 (3.2-6.6)

4.6 (3.3-6.5)

0.96

FEV₁ (L)

18

3.8 (2.7-6.1)

3.7 (2.6-5.7)

3.8 (2.7-5.9)

0.61

FEV₁/FVC

18

0.8 (0.6-0.9)

0.9 (0.6-1.0)

0.8 (0.6-1.0)

0.44

CRP (ng/mL)

17

30.1 (1.3-93.9)

31.6 (0.9-149.3)

53.2 (6.3-225.3)

0.01*

SAA (ng/mL)

16

32.1 (6.1-93.9)

29.8 (3.9-88.3)

66.5 (9.4-355.1)

0.08

sICAM (ng/mL)

17

4.4 (2.2-8.1)

4.5 (1.7-7.3)

5.5 (2.5-8.8)

0.01*

IL-1β (pg/mL)

21

3.7 (0.4-13.9)

3.6 (0.2-17.7)

3.0 (0.2-25.9)

0.86

IL-8 (pg/mL)

21

3.3 (0.8-15.3)

2.4 (0.0-6.7)

2.0 (0.8-5.0)

0.13

Cortisol (ng/mL)

10

0.4 (0.1-0.8)

0.4 (0.2-0.6)

0.3 (0.1-0.6)

0.21

SBP (mmHg)

18

126 (106–166)

124 (95–162)

129 (109–155)

0.27

DBP (mmHg)

18

82 (66–103)

82 (64–97)

79 (56–99)

0.21

PP (mmHg)

18

43 (23–70)

41 (19–65)

46 (15–63)

0.14

MAP (mmHg)

18

97 (81–124)

96 (76–119)

96 (78–118)

0.91

SDNN (ms)

18

77 (34–186)

72 (28–164)

75 (43–106)

0.81

rMSSD (ms)

18

41 (15–118)

43 (13–161)

48 (18–94)

0.57

HF (ms²)

18

1048 (23–6822)

1054 (20–7261)

1106 (52–4574)

0.99

LF (ms²)

18

1651 (407–4835)

2483 (110–13518)

1599 (250–4186)

0.23

LF:HF

18

5.0 (0.5-20.6)

4.9 (0.2-13.1)

3.0 (0.3-6.6)

0.10

Heart rate (BPM)

18

77.8 (58.9-94.9)

78.9 (60.4-118.1)

78.7 (62.2-128.0)

0.94