Table 2 Exposure distributions for PNC and PIR
| Â | PNC (1000 particles/mL) | PIR (1 billion inhaled/h) | ||||||
|---|---|---|---|---|---|---|---|---|
Total | Visit 1 | Visit 2 | Visit 3 | Total | Visit 1 | Visit 2 | Visit 3 | |
Observations | 1790 | 754 | 605 | 431 | 1730 | 747 | 588 | 395 |
Mean | 23 | 24 | 23 | 23 | 13 | 14 | 13 | 13 |
Standard deviation | 3.4 | 3.5 | 3.1 | 3.5 | 5.5 | 5.6 | 5.0 | 6.0 |
Minimum | 8.1 | 11 | 10 | 8.1 | 3.7 | 3.7 | 3.9 | 4.0 |
25th percentile | 21 | 21 | 22 | 21 | 9.5 | 9.9 | 9.4 | 8.8 |
Median | 24 | 24 | 24 | 24 | 12 | 13 | 12 | 12 |
75th percentile | 26 | 26 | 26 | 26 | 16 | 16 | 15 | 15 |
Maximum | 32 | 32 | 31 | 30 | 54 | 54 | 37 | 39 |
Range | 24 | 21 | 20 | 22 | 51 | 51 | 33 | 35 |
IQR | 4.6 | 5.0 | 4.2 | 5.0 | 6.2 | 6.3 | 6.0 | 6.6 |