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Table 3 Comparison of baseline values between the road test and the clean room

From: Subclinical responses in healthy cyclists briefly exposed to traffic-related air pollution: an intervention study

Endpoint

Road test

Clean room

Exhaled NO, ppb

29 (19 - 41)

24 (15 - 39)

PFA closure time, s

163 (135-197)

154 (125-176)

Plasma IL-6, pg/mL

1.47 (0.99-2.28)

1.53 (1.20-1.90)

Clara cell protein, μg/L

7.7 (5.6-11.5)

7.7 (5.6-10.3)

Blood leukocyte counts, per μL

4964 (1208)

4883 (1174)

Blood neutrophil counts, per μL

2937 (874)

2888 (884)

Percentage blood neutrophils,%

59 (8.0)

59 (7.1)

  1. Data are geometric mean (25-75 percentile) for non-normally distributed variables or mean (SD) for normally distributed variables
  2. Paired t-test: p > 0.08