Table 2 Differences in particle counts by particle size and respiratory mode between experiment patterns 2 and 3.
Particle size (μm) | Respiratory mode (n = 9) | Mean difference [pattern (3)- pattern (2)] | %Change in mean particle count | Standard error of mean difference | Median of differences | Signed rank p value < 0.05 |
|---|---|---|---|---|---|---|
All | Normal | − 19.56 | − 94.12% | 6.60 | − 18 | Yes (0.023) |
Talking | − 89.33 | − 95.37% | 21.28 | − 67 | Yes (0.0039) | |
Coughing | − 211.67 | − 85.58% | 117.82 | − 50 | Yes (0.0078) | |
0.3 | Normal | − 8.00 | − 88.89% | 2.35 | − 12 | Yes (0.023) |
Talking | − 48.33 | − 95.60% | 13.18 | − 35 | Yes (0.0039) | |
Coughing | − 139.89 | − 85.88% | 79.29 | − 33 | Yes (0.0078) | |
0.5 | Normal | − 7.00 | − 96.92% | 2.44 | − 5 | Yes (0.031) |
Talking | − 27.22 | − 94.96% | 4.87 | − 25 | Yes (0.0039) | |
Coughing | − 59.00 | − 85.65% | 32.59 | − 18 | Yes (0.0078) | |
1 | Normal | − 4.44 | − 100.00% | 2.37 | − 2 | Yes (0.016) |
Talking | − 12.89 | − 95.08% | 3.38 | − 9 | Yes (0.0039) | |
Coughing | − 12.11 | − 81.95% | 6.30 | − 4 | No (0.055) | |
3 | Normal | − 0.11 | − 100.00% | 0.10 | 0 | No (1) |
Talking | − 0.56 | − 100.00% | 0.28 | 0 | No (0.25) | |
Coughing | − 0.56 | − 83.33% | 0.36 | 0 | No (0.31) | |
5 | Normal | 0.00 | Incalculable | 0.00 | 0 | No (1) |
Talking | − 0.33 | − 100.00% | 0.31 | 0 | No (1) | |
Coughing | − 0.11 | − 100.00% | 0.10 | 0 | No (1) | |
10 | Normal | 0.00 | Incalculable | 0.00 | 0 | No (1) |
Talking | 0.00 | Incalculable | 0.00 | 0 | No (1) | |
Coughing | 0.00 | Incalculable | 0.00 | 0 | No (1) |
