Table 2.
Characteristics and comparisons of aerosol generation during swine cardiac arrest resuscitation and health human coughs.
| Aerosol count (×104) |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline (n = 3) |
No-flow (n = 3) |
Pre-defibrillation chest compression (n = 3) |
Post-defibrillation chest compression (n = 3) |
Human cough (n = 4) |
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| Diameter (μm) | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | p Value |
| 0.300–0.465 | 1.7 | 1.1 | 3.3 | 1.6 | 4.3 | 1.9 | 8.8 | 4.3 | 39.9 | 24.8 | <0.05 |
| 0.465–0.721 | 0.4 | 0.4 | 0.9 | 0.7 | 1.6 | 1.0 | 7.1 | 4.1 | 10.0 | 6.6 | <0.05 |
| 0.721–1.117 | 0.4 | 0.5 | 1.2 | 1.4 | 1.5 | 1.0 | 9.1 | 5.6 | 3.1 | 2.1 | <0.05 |
| 1.117–1.732 | 0.2 | 0.3 | 1.2 | 1.7 | 1.2 | 0.9 | 9.5 | 6.0 | 1.1 | 0.7 | <0.01 |
| 1.732–2.685 | 0.3 | 0.4 | 1.7 | 2.6 | 1.8 | 1.7 | 15.6 | 9.4 | 0.4 | 0.3 | <0.005 |
| 2.685–4.162 | 0.1 | 0.2 | 1.1 | 1.9 | 1.0 | 1.0 | 10.9 | 6.7 | 0.1 | 0.1 | <0.005 |
| 4.162–6.451 | 0.2 | 0.2 | 0.8 | 1.3 | 0.6 | 0.6 | 7.6 | 4.7 | 0.0 | 0.0 | <0.005 |
| 6.451–10.00 | 0.0 | 0.0 | 0.3 | 0.4 | 0.3 | 0.2 | 3.8 | 2.6 | 0.0 | 0.0 | <0.01 |
| Total | 3.2 | 3.0 | 10.5 | 11.2 | 12.3 | 8.3 | 72.4 | 41.6 | 54.7 | 33.9 | <0.05 |
SD = Standard deviation; p values are from one-way ANOVA.