Table 2. Summary of outdoor-settled dust samples—proximal (P), intermediate (I) and distal (D)homes.
| Analyte | Home type | n (n <LOD) | Mean | SD | Median | IQR | Max | P-valuea | |
|---|---|---|---|---|---|---|---|---|---|
| Bos d2 (μg/g) | Proximal | 19 (4) | 3.9 | 7.1 | 0.52 | 4.6 | 28.6 | P vs D | <0.01 |
| Intermediate | 7 (3) | 0.18 | 0.22 | 0.08 | 0.27 | 0.62 | P vs I | 0.07 | |
| Distal | 13 (10) | 0.99 | 3.4 | 0.03 | 0 | 12.4 | D vs I | 0.15 | |
| Mus m1 (ng/g) | Proximal | 20 (0) | 160 | 596 | 11 | 29 | 2683 | P vs D | 0.68 |
| Intermediate | 5 (3) | 77 | 169 | 1 | 4 | 379 | P vs I | 0.46 | |
| Distal | 12 (0) | 34 | 63 | 3 | 40 | 211 | D vs I | 0.77 | |
| Endotoxin (EU/mg) | Proximal | 20 (0) | 194 | 181 | 132 | 138 | 712 | P vs D | <0.001 |
| Intermediate | 5 (0) | 120 | 135 | 63 | 70 | 356 | P vs I | 0.15 | |
| Distal | 12 (0) | 42 | 45 | 28 | 18 | 170 | D vs I | 0.05 | |
Abbreviations: IQR, interquartile range; LOD, limit of detection.
a
Kruskall–Wallis—P for trend values are the same.