Table 4.
Summary of the Generalised Additive Model for the type of exposure reported between Q fever cases belonging to a cluster, and cases outside clusters.
| Type of Exposure | Community and Household Clusters vs. Cases Outside a Cluster | ||
|---|---|---|---|
| Chi-Square Statistic | p-Value | Odd Ratio (2.5–97.5%) |
|
| Abattoir exposure | 0.00 | 0.601 | 1 (0.998–1.002) |
| Assist/observe animal birth | 4.40 | 0.036 | 3.17 (0.889–10.141) |
| Work with wool | 0.71 | 0.315 | 0.04 (0–2.089) |
| Live on farm | 0.00 | 0.626 | 1 (0.998–1.002) |
| Launder clothes of animal worker | 1.82 | 0.100 | 1.93 (0.695–4.986) |
| Work on abattoir grounds | 0.79 | 0.319 | 0 (0–0.624) |
| Work with animal manure, etc. | 0.00 | 0.920 | 1 (0.999–1.001) |
| Visit farm | 0.00 | 0.908 | 1 (0.997–1.003) |
| Contact with infected person | 30.18 | <0.001 | 39.11 (9.836–183.989) |
| Exposure to paddock dust, etc. | 0.00 | 0.489 | 1 (0.999–1.002) |
| Visitor to abattoir | 0.00 | 0.919 | 1 (0.997–1.003) |
| Shooting/hunting | 0.00 | 0.525 | 1 (0.996–1.005) |
| Attend saleyard/animal show | 3.65 | 0.078 | 2.62 (0.669–8.591) |
| Exposed to livestock transport | 0.00 | 0.488 | 1 (0.998–1.002) |
| Consume unpasteurised milk, etc. | 0.00 | 0.359 | 1 (0.979–1.023) |
| Live/work within 300 m of bush, etc. | 0.31 | 0.250 | 0.86 (0.506–1.434) |
| Contact with untreated water | 0.00 | 0.380 | 1 (0.995–1.005) |