Table 1 Characteristics of E. coli bloodstream infections by place of onset and by season
Variable | Community onset | Hospital onset | ||||
|---|---|---|---|---|---|---|
(n = 9012) | (n = 1571) | |||||
Holiday season | Rest of the year | P | Holiday season | Rest of the year | P | |
E. coli BSI per month, mean (SD) | 410.5 (29.6) | 357.9 (35.3) | < 0.001 | 69 (8.8) | 63.7 (7.7) | 0.13 |
Age, mean (SD) | 72.6 (17.0) | 73.9 (16.4) | < 0.001 | 67.1 (17.0) | 67.6 (17.1) | 0.56 |
Age category, N (%) | < 0.001 | 0.73 | ||||
18–44 | 268 (8.2) | 396 (6.9) | 66 (12.0) | 120 (11.8) | ||
45–64 | 527 (16.0) | 870 (15.2) | 130 (23.6) | 230 (22.6) | ||
65–74 | 736 (22.4) | 1158 (20.2) | 154 (27.9) | 267 (26.2) | ||
75 + | 1753 (53.4) | 3304 (57.7) | 202 (36.6) | 402 (39.5) | ||
Female sex, N (%) | 1855 (56.5) | 3362 (58.7) | 0.04 | 270 (48.9) | 507 (49.8) | 0.75 |
Polymicrobial event, N (%) | 200 (6.1) | 370 (6.5) | 0.49 | 79 (14.3) | 153 (15.0) | 0.71 |