Prevalence ratios of acute symptoms for individual exposure variables adjusted for sex, smoking, and age by Cox's regression
| Exposure | n4-151 | Prevalence ratio (95% CI)4-150 | ||||||
|---|---|---|---|---|---|---|---|---|
| Agent | Category | TWA concentration | Red or irritated eyes (cases=16) | Running or clogged nose (cases=19–21) |
Cough (cases=15) | Chest tightness or wheezing (cases=11) | ||
| Bacteria | Low | 0.002–0.3 × 106/m3 | 87 | 1 | 1 | 1 | 1 | |
| Medium | 0.3–2 × 106/m3 | 2.3 (0.57 to 9.0) | 1.4 (0.42 to 4.8) | 0.61 (0.16 to 2.3) | 0.49 (0.11 to 2.1) | |||
| High | 2–25 × 106/m3 | 2.0 (0.47 to 8.8) | 2.4 (0.71 to 7.8) | 1.2 (0.35 to 4.3) | 0.59 (0.14 to 2.5) | |||
| Endotoxins | Low | 0.01–0.25 × 103EU/m3 | 89 | 1 | 1 | 1 | 1 | |
| Medium | 0.25–5 × 103 EU/m3 | 1.5 (0.35 to 6.4) | 1.9 (0.46 to 7.5) | 0.33 (0.06 to 1.8) | 0.49 (0.11 to 2.1) | |||
| High | 5–110 × 103 EU/m3 | 2.3 (0.61 to 8.7) | 4.1 (1.1 to 15) | 1.6 (0.53 to 5.1) | 0.78 (0.21 to 2.9) | |||
| Rod shaped bacteria | Low | 0.000–0.02 × 106/m3 | 85 | 1 | 1 | 1 | 1 | |
| Medium | 0.02–0.2 × 106/m3 | 0.18 (0.02 to 1.5) | 1.5 (0.46 to 4.7) | 0.97 (0.23 to 4.2) | 0.40 (0.08 to 1.9) | |||
| High | 0.2–3 × 106/m3 | 0.98 (0.34 to 2.9) | 2.0 (0.67 to 5.7) | 2.0 (0.61 to 6.8) | 0.69 (0.17 to 2.7) | |||
| Fungal spores | Low | 0.000–0.02 × 106/m3 | 89 | 1 | 1 | 1 | 1 | |
| Medium | 0.02–0.5 × 106/m3 | 8.3 (1.0 to 70) | 4.1 (0.88 to 19) | 1.3 (0.28 to 5.7) | 0.38 (0.07 to 2.0) | |||
| High | 0.5–17 × 106/m3 | 7.0 (0.83 to 59) | 6.0 (1.3 to 28) | 3.9 (1.0 to 15) | 1.7 (0.50 to 5.5) | |||
| β(1→3)-glucans | Low | 0.00–0.5 μg/m3 | 74 | 1 | 1 | 1 | 1 | |
| Medium | 0.5–5 μg/m3 | 1.4 (0.32 to 5.7) | 2.2 (0.69 to 7.0) | 1.4 (0.37 to 5.4) | 0.61 (0.12 to 3.2) | |||
| High | 5–76 μg/m3 | 1.4 (0.36 to 5.3) | 1.9 (0.57 to 6.1) | 1.4 (0.38 to 5.0) | 1.4 (0.39 to 5.2) | |||
| EPS-Asp/Pen | Low | 0.000–0.01 mgeq/m3 | 51 | 1 | 1 | 1 | 1 | |
| Medium | 0.01–0.1 mgeq/m3 | 1.4 (0.18 to 11) | 1.0 (0.21 to 5.0) | 1.0 (0.14 to 6.9) | 0.96 (0.18 to 5.1) | |||
| High | 0.1–1.1 mgeq/m3 | 0.98 (0.12 to 8.1) | 2.1 (0.42 to 11) | 1.1 (0.12 to 9.5) | 0.64 (0.10 to 4.1) | |||
| Mites | Low | 0.0000–0.0005 mite units/m3 | 73 | 1 | 1 | 1 | 1 | |
| Medium | 0.0005–0.05 mite units/m3 | 0.63 (0.17 to 2.3) | 0.70 (0.23 to 2.1) | 0.53 (0.12 to 2.2) | 1.0 (0.32 to 3.4) | |||
| High | 0.05–44 mite units/m3 | 0.31 (0.06 to 1.6) | 0.93 (0.31 to 2.8) | 1.4 (0.37 to 5.1) | 0.20 (0.02 to 1.7) | |||
| Organic dust | Low | 0.000–0.03 mg/m3 | 84 | 1 | 1 | 1 | 1 | |
| Medium | 0.03–0.2 mg/m3 | 0.88 (0.24 to 3.3) | 0.88 (0.29 to 2.7) | 0.46 (0.09 to 2.4) | 0.37 (0.07 to 1.9) | |||
| High | 0.2–6.8 mg/m3 | 1.1 (0.28 to 4.0) | 1.5 (0.51 to 4.2) | 2.1 (0.61 to 6.9) | 1.0 (0.28 to 3.6) | |||
| Dust | Low | 0.007–0.15 mg/m3 | 89 | 1 | 1 | 1 | 1 | |
| Medium | 0.15–0.5 mg/m3 | 2.5 (0.65 to 10) | 5.4 (1.2 to 25) | 0.80 (0.18 to 3.6) | 0.93 (0.22 to 3.9) | |||
| High | 0.5–9.3 mg/m3 | 1.5 (0.37 to 6.2) | 5.0 (1.1 to 23) | 2.1 (0.61 to 7.1) | 1.1 (0.27 to 4.9) | |||
| Inorganic dust4-152 | Low | 0.001–0.1 mg/m3 | 84 | 1 | 1 | 1 | 1 | |
| Medium | 0.1–0.3 mg/m3 | 6.7 (0.76 to 59) | 3.6 (0.95 to 14) | 0.52 (0.12 to 2.3) | 0.69 (0.17 to 2.8) | |||
| High | 0.3–6.8 mg/m3 | 6.8 (0.75 to 62) | 3.0 (0.75 to 12) | 1.2 (0.33 to 4.6) | 0.73 (0.16 to 3.3) | |||
| Silica | Low | 0.000–0.015 mg/m3 | 84 | 1 | 1 | 1 | 1 | |
| Medium | 0.015–0.075 mg/m3 | 1.3 (0.39 to 7.5) | 4.5 (0.96 to 21) | 1.8 (0.42 to 7.7) | 0.50 (0.12 to 2.1) | |||
| High | 0.075–0.75 mg/m3 | 0.86 (0.19 to 3.9) | 5.7 (1.2 to 27) | 2.3 (0.53 to 9.9) | 0.62 (0.15 to 2.6) | |||
| Ammonia | Low | 0.0–0.5 ppm | 43 | 1 | 1 | |||
| Medium | 0.5–1.5 ppm | —4-153 | 0.40 (0.07 to 2.3) | 0.32 (0.03 to 3.2) | —4-153 | |||
| High | 1.5–3.8 ppm | 0.36 (0.06 to 2.1) | 0.98 (0.19 to 5.0) | |||||