Table 1 Characteristics of patients included in the cohort study
From: Variation in red cell transfusion practice in the intensive care unit: a multicentre cohort study
Institution | ||||||||
|---|---|---|---|---|---|---|---|---|
Variable* | 1 | 2 | 3 | 4 | 5 | 6 | Overall | P |
Number of patients | 1355 | 916 | 672 | 851 | 708 | 796 | 5298 | |
Demographics | ||||||||
% Male | 59 | 57 | 64 | 60 | 58 | 57 | 59 | P > 0.05 |
Age (in years ± sd) | 59 ± 17.8 | 60 ± 18.1 | 60 ± 15.6 | 58± 19.3 | 51 ± 18.8 | 55 ± 19.8 | 57 ± 17.9 | P > 0.05 |
Diagnostic categories (%) | ||||||||
Trauma | 8 | 7 | 2 | 14 | 17 | 12 | 10 | P > 0.05 |
Respiratory | 13 | 17 | 11 | 12 | 37 | 22 | 18 | |
Cardiovascular | 55 | 31 | 30 | 24 | 17 | 24 | 33 | |
Postoperative | 3 | 13 | 31 | 1 | 8 | 11 | 10 | |
Other | 21 | 32 | 26 | 49 | 21 | 31 | 29 | |
Admitting service (%) | ||||||||
Medical | 70 | 38 | 6 | 46 | 41 | 53 | 45 | P < 0.05 |
Surgical | 30 | 62 | 94 | 54 | 59 | 47 | 55 | |
Outcomes | ||||||||
APACHE II Score | 14 ± 9 | 20 ± 12 | 14 ± 11 | 21 ± 8 | 26 ± 10 | 14 ± 8 | 18 ± 11 | P < 0.001 |
160;ICU length of stay (days)4.6 ± 14.2 | 4.6 ± 14.2 | 3.7 ± 5.3 | 5.3 ± 23.1 | 5.5 ± 9.5 | 5.8 ± 8.9 | 3.9 ± 6.8 | 4.8 ± 12.6 | P < 0.001 |
ICU Mortality(%) | 17 | 21 | 19 | 26 | 31 | 23 | 22 | P < 0.001 |