Table 1 CNT/F worker demographics, exposure, and SCIP metrics for low and high exposure groups
Worker demographics and exposure metric data | Exposure groups | |
|---|---|---|
High | Low | |
Demographics | ||
Age [binned 1–5]a, \({\bar{\text{x}}}\)̄ (SE) | 3.0 (0.4) | 3.0 (0.3) |
Sex, # Females, n (%) | 3 (25) | 2 (17) |
Education [binned 1–4]b, \({\bar{\text{x}}}\)̄ (SE) | 2.8 (0.4) | 3.2 (0.3) |
Former Smokers, n (%) | 3 (25) | 2 (17) |
Allergies, n (%) | 5 (42) | 5 (42) |
Hypertension, n (%) | 3 (25) | 2 (17) |
Current solvent Exp., n (%) | 7 (58) | 6 (50) |
Past solvent Exp., n (%) | 6 (50) | 5 (42) |
CNT/F exp | ||
Inhalable EC [µg/m3], \({\bar{\text{x}}}\)̄ (SE) | 8.706 (5.402) | 0.055 (0.014) |
Respirable EC [µg/m3], \({\bar{\text{x}}}\)̄ (SE) | 1.564 (0.964) | 0.017 (0.006) |
CNT/F structure Count [s/cm3], \({\bar{\text{x}}}\)Ì„ (SE) | 0.442 (0.310) | 0.005 (0.002) |
CNT/F duration [binned 1–5]c, \({\bar{\text{x}}}\)̄ (Se) | 3.3 (0.3) | 2.4 (0.4) |
SCIP assay | ||
IL6 log fold-change, \({\bar{\text{x}}}\)Ì„ (SE) | 0.958 (0.094) | 0.980 (0.069) |
CCL2 log fold-change, \({\bar{\text{x}}}\)Ì„ (SE) | 0.830 (0.077) | 1.001 (0.099) |
TNFalpha log fold-change, \({\bar{\text{x}}}\)Ì„ (SE) | 1.231 (0.187) | 0.950 (0.102) |
VCAM log fold-change, \({\bar{\text{x}}}\)Ì„ (SE) | 1.159 (0.178) | 1.154 (0.141) |
ICAM log fold-change, \({\bar{\text{x}}}\)Ì„ (SE) | 0.907 (0.128) | 1.228 (0.247) |