Table 3 Multivariable analysis of the effect of season and temperature on the incidence of multidrug-resistant E. coli bloodstream infection, by place of onset
Variable | Community onset | Hospital onset | ||||
|---|---|---|---|---|---|---|
IRR | 95% CI | P | IRR | 95% CI | P | |
Holiday season | 1.04 | 0.94, 1.14 | 0.50 | 1.00 | 0.84, 1.20 | > 0.9 |
Temperature, °C | 1.01 | 1.00, 1.02 | 0.04 | 1.01 | 0.99, 1.02 | 0.30 |
Female sex | 1.10 | 1.03, 1.18 | 0.01 | 0.84 | 0.74, 0.95 | 0.01 |
Age category, years | ||||||
18–44 | – | – | – | – | ||
45–64 | 3.03 | 2.58, 3.56 | < 0.001 | 1.75 | 1.41, 2.18 | < 0.001 |
65–74 | 4.16 | 3.57, 4.88 | < 0.001 | 2.04 | 1.65, 2.53 | < 0.001 |
75 + | 11.4 | 9.90, 13.3 | < 0.001 | 2.62 | 2.14, 3.23 | < 0.001 |
Number of months since January 2018 | 1.01 | 1.00, 1.01 | 0.03 | 1.01 | 1.00, 1.02 | 0.14 |