Association between patient demographic and sites, and the use of low molecular weight heparin (LMWH) for venous thromboembolism (VTE) prophylaxis and not using albumin for fluid resuscitation
| Appropriate VTE prophylaxis OR (95% CI)* | Appropriate fluid resuscitation OR (95% CI)† | |
| Age | NS‡ | 0.999 (0.999 to 1.00) |
| Female | NS‡ | NS‡ |
| Any comorbidity | NS‡ | NS‡ |
| Admission type | ||
| Elective surgery | 1.00 (reference group) | 1.00 (reference group) |
| Emergent surgery | 1.19 (0.92 to 1.53) | 0.92 (0.88 to 0.95) |
| No surgery | 1.34 (1.08 to 1.66) | 1.02 (0.98 to 1.05) |
| APACHE II score (ICU admission) | 0.958 (0.951 to 0.965) | 0.989 (0.988 to 0.990) |
| Site | ||
| C1 | 1.00 (reference group) | 1.00 (reference group) |
| C2 | 1.32 (1.07 to 1.64) | 0.96 (0.92 to 1.00) |
| C3 | 1.13 (0.89 to 1.46) | 0.98 (0.94 to 1.03) |
| C4 | 1.48 (1.15 to 1.90) | 0.98 (0.93 to 1.02) |
| E1 | 2.12 (1.66 to 2.73) | 0.90 (0.86 to 0.95) |
| E2 | 0.86 (0.71 to 1.05) | 0.90 (0.87 to 0.92) |
| E3 | 7.26 (5.46 to 9.65) | 0.92 (0.87 to 0.97) |
| E4 | 0.76 (0.63 to 0.92) | 0.88 (0.85 to 0.91) |
| E5 | 1.61 (1.23 to 2.10) | 0.75 (0.72 to 0.79) |
All ‘C’ sites indicate intensive care unit (ICU) in Calgary and all ‘E’ sites indicate ICU in Edmonton.
*Multivariable generalised estimating equations logistic regression model with exchangeable correlation structure given daily measurements (clustering by patient); ‘appropriate’ considered use of LMWH.
†Standard multivariable logistic regression model given single measurement per patient; ‘appropriate’ considered not using albumin.
‡NS=non significant, removed from model.