Descriptive statistics by city for admissions with a central line
| Mexico | São Paulo | |
| Dates | June 2002–December 2003 | October 2003–April 2005 |
| Number of ICU wards | 4 | 3 |
| Total number of admissions | 1571 | 960 |
| Patient days in ICU | 12 651 | 12 526 |
| Age (years), mean (SD) | 53 (18.6) | 54 (18.6) |
| ASIS, mean (SD) | 3.7 (0.97) | 3.8 (0.83) |
| Dead, n (%) | 353 (22) | 221 (23) |
| Admissions with a CLABSI, n (%) | 168 (10.7) | 69 (7.2) |
| CLABSIs per 1000 central line days | 14.4 | 5.9 |
| Central line days | 11 667 | 11 695 |
| Length of stay (days), median (IQR) | 6 (4–10) | 6 (4–12) |
| Admissions with a closed system, n (%) | 535 (33.9) | 418 (47.8) |
ASIS, acute severity illness score; CLABSI, central line associated blood stream infection; ICU, intensive care unit.