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Table 1 Descriptive data of participants and summary of physiological baseline measurements

From: Particulate matter exposure and health impacts of urban cyclists: a randomized crossover study

Variable Baseline mean [SD] or total Range
Total participants (male, female) 38 (28, 10)
Age (years) Overall 29 [5.6]; median = 29
Male mean = 29
Female mean = 31
20–39
BMI (kg/m2) 22.8 [2.0];
median = 22.8
18.3–28.0
Systolic BP (mmHg) 117 [9] 90–139
Diastolic BP (mmHg) 67 [6] 52–83
Reactive Hyperemia Index (RHI) 2.02 [0.64] 1.29–4.28
CRP (mg/dL) 0.85 [1.2] 0.11–7.7
IL-6 (pg/mL) 3.6 [4.3] 0.023–16
8-OHdG (ng/mL) 0.20 [0.12] 0.012–0.73
# participants whose first trial was along the Downtown route 17
Morning test (session end by 12:30 pm) 23
Cold Questionnaire score (≥ 3 probable viral infections) 0.4 [0.9] 0–3