Table 2.
Environmental Exposures and biomarkers (n = 287)a.
| Median (25%ile – 75% ile) | Range | ||
|---|---|---|---|
| Indoor black carbon, μg/m3 | 0.19 (0.10–0.32) | − 0.42–1.39 | |
| Central site black carbon, μg/m3 | 0.54 (0.41–0.78) | 0.27–1.53 | |
| Mean (SD) | Range | ||
| Relative humidity, % | 64.1 (7.5) | 42.47–79.15 | |
| Outdoor temperature, °C | 10.2 (8.8) | − 8.8–26.2 | |
| Distance from central site, km | 26.4 (18.8) | 1.06–79.9 | |
| Biomarker | Median (25%ile – 75% ile) | Range | |
| CRP, mg/L | 2.87 (1.22 – 6.32) | 0.24–46.90 | |
| IL-6, pg/mL | 3.13 (2.11 – 5.42) | 0.53–49.87 | |
| sVCAM-1, ng/mL | 895.8 (750.1 – 1070.0) | 371.1–2177.6 | |
| Hours/day inside home during sampling | Weekdays | Weekends | |
| n (%) | Mean (SD) | Mean (SD) | |
| All observations | 287 | 17.0 (4.1) | 17.1 (4.9) |
| Winter | 67 (23.3) | 18.0 (3.8) | 18.9 (4.0) |
| Spring | 78 (27.2) | 17.3 (3.8) | 17.5 (4.1) |
| Summer | 72 (25.1) | 16.5 (4.2) | 15.1 (5.7) |
| Fall | 70 (24.4) | 16.4 (4.3) | 16.9 (4.7) |
a
BC over a mean of 7.6 days (range 4–10); outdoor BC, humidity, and temperature averaged over the same period; 10% of indoor BC samples were below the limit of detection.