Table 1 Characteristics and outcomes of Escherichia coli bloodstream infections, Auckland District Health Board, 2005 - 2011
Characteristic | All patients (n = 1507) | Community-associated (n = 510) | Healthcare-associated, community-onset (n = 608) | Healthcare-associated, hospital-onset (n = 389) | P value of CA vs. HCA-CO | P value of CA vs. HCA-HO | P value of HCA-CO vs. HCA-HO |
|---|---|---|---|---|---|---|---|
Age, median, years (IQR) a | 63 (45 – 77) | 63 (47 – 74) | 65 (47–79) | 58 (35–75) | 0.05 | 0.01 | < 0.001 |
Gender, male b | 678 (45) | 208 (41) | 255 (42) | 215 (55) | 0.71 | < 0.001 | < 0.001 |
Clinical outcomes | |||||||
LOS, median, days (IQR) a | 7 (4–16) | 5 (3 – 8) | 6 (4 – 10) | 24 (14 – 40) | < 0.001 | < 0.001 | <0.001 |
ICU admission b | 216 (14) | 56 (11) | 50 (8) | 110 (28) | 0.31 | < 0.001 | < 0.001 |
In-hospital mortality b | 135 (9) | 21 (4) | 57 (9) | 57 (15) | < 0.001 | < 0.001 | 0.01 |
Isolate characteristics | |||||||
ESBL phenotype b, c | 66 (4.4) | 24 (5) | 30 (5) | 32 (8.5) | 0.89 | 0.04 | 0.04 |
MDR phenotype b | 609 (40) | 180 (35) | 268 (44) | 161 (41) | 0.003 | 0.07 | 0.43 |