Table 1. Background characteristics for Escherichia coli and Klebsiella pneumoniae isolates, ISIS-AR The Netherlands, 2008–2012.
| E. coli | K. pneumoniae | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | |||||||
| blood isolates | male urine isolates | female urine isolates | blood isolates | male urine isolates | female urine isolates | |||||||
| Variable | n = 14461 | n = 42270 | n = 140782 | n = 2492 | n = 9995 | n = 25553 | ||||||
| ESC-R a | 863 | (6.0) | 2481 | (5.2) | 5331 | (3.6) | 204 | (8.2) | 631 | (6.3) | 1000 | (3.8) |
| Age in years | ||||||||||||
| 19–64 | 4049 | (28.0) | 19379 | (41.0) | 69121 | (47.3) | 774 | (31.1) | 3169 | (31.7) | 8902 | (33.5) |
| ≥65 | 10412 | (72.0) | 27891 | (59.0) | 76992 | (52.7) | 1718 | (68.9) | 6826 | (68.3) | 17651 | (66.5) |
| Gender b | ||||||||||||
| Female | 7282 | (50.4) | - | - | - | - | 1087 | (43.6) | - | - | - | - |
| Male | 7179 | (49.6) | - | - | - | - | 1405 | (56.4) | - | - | - | - |
| Patient setting c | ||||||||||||
| GP | - | - | 24244 | (51.3) | 89704 | (61.4) | - | - | 3702 | (37.0) | 14494 | (54.6) |
| OPD | 4630 | (32.0) | 13045 | (27.6) | 29640 | (20.3) | 690 | (27.7) | 3728 | (37.3) | 6737 | (25.4) |
| IPD | 8638 | (59.7) | 9558 | (20.2) | 25885 | (17.7) | 1515 | (60.8) | 2419 | (24.2) | 5042 | (19.0) |
| ICU | 1186 | (8.2) | 423 | (0.9) | 884 | (0.6) | 287 | (11.5) | 146 | (1.5) | 280 | (1.1) |
| Geographic Region | ||||||||||||
| Northwest | 3727 | (25.8) | 15384 | (32.5) | 47351 | (32.4) | 618 | (24.8) | 2604 | (26.1) | 6440 | (24.3) |
| Northeast | 1953 | (13.5) | 2200 | (4.7) | 5346 | (3.7) | 259 | (10.4) | 1420 | (14.2) | 4295 | (16.2) |
| Middle | 2523 | (17.4) | 9991 | (21.2) | 31233 | (21.4) | 388 | (15.6) | 1559 | (15.6) | 4119 | (15.5) |
| Southwest | 1814 | (12.5) | 7860 | (16.7) | 26901 | (18.4) | 347 | (13.9) | 1165 | (11.7) | 3316 | (12.5) |
| South | 4423 | (30.6) | 11766 | (24.9) | 35018 | (24.0) | 873 | (35.0) | 3233 | (32.3) | 8358 | (31.5) |
aESC-R: Extended-spectrum cephalosporin-resistant
bUrine samples are stratified for gender.
cThe patient settings are: General Practitioner (GP), Outpatient Department (OPD), Inpatient Department (IPD) and Intensive Care Unit (ICU). The dataset did not contain blood isolates from general practitioners.