Table 2 Characteristics of patients according to the lowest hemoglobin concentration on the day of transfusion
From: Worldwide audit of blood transfusion practice in critically ill patients
Lowest hemoglobin concentration on day of transfusion, mean ± SD | ||||||
|---|---|---|---|---|---|---|
Characteristic | Transfusion on day of admission | Transfusion at any time during ICU staya | ||||
Number | Numberb | Min | Max | Mean | ||
All patients | 1170 | 8.3 ± 2.2 | 2470 | 7.9 ± 1.7 | 8.6 ± 1.8 | 8.3 ± 1.7 |
Age, years | *** | * | *** | |||
16–50 | 312 | 8.2 ± 2.4 | 605 | 7.7 ± 1.9 | 8.5 ± 1.9 | 8.1 ± 1.8 |
51–65 | 321 | 8.4 ± 2.1 | 731 | 7.9 ± 1.6 | 8.6 ± 1.7 | 8.2 ± 1.6 |
66–75 | 267 | 8.5 ± 2.1 | 578 | 8.0 ± 1.8 | 8.7 ± 1.7 | 8.4 ± 1.6 |
>75 | 267 | 8.3 ± 2.0 | 551 | 8.1 ± 1.7 | 8.7 ± 1.7 | 8.4 ± 1.7 |
Sex | ||||||
Female | 463 | 8.3 ± 2.1 | 984 | 7.9 ± 1.7 | 8.6 ± 1.8 | 8.2 ± 1.6 |
Male | 693 | 8.3 ± 2.2 | 1466 | 7.9 ± 1.7 | 8.6 ± 1.8 | 8.3 ± 1.6 |
Type of admission | *** | *** | *** | *** | ||
Surgical | 671 | 8.8 ± 2.1 | 1237 | 8.2 ± 1.7 | 8.9 ± 1.8 | 8.6 ± 1.7 |
Medical | 392 | 7.6 ± 2.1 | 973 | 7.5 ± 1.7 | 8.3 ± 1.7 | 7.9 ± 1.6 |
Trauma | 69 | 8.4 ± 2.1 | 167 | 8.0 ± 1.6 | 8.7 ± 1.7 | 8.3 ± 1.6 |
Others | 3 | 6.8 ± 2.6 | 10 | 7.9 ± 2.2 | 8.5 ± 2.2 | 8.2 ± 2.2 |
SAPS II | *** | *** | *** | *** | ||
0–28 | 188 | 8.7 ± 2.4 | 345 | 8.2 ± 2.0 | 8.9 ± 2.0 | 8.6 ± 1.9 |
29–39 | 319 | 8.7 ± 2.2 | 657 | 8.2 ± 1.8 | 8.8 ± 1.8 | 8.5 ± 1.7 |
40–51 | 284 | 8.1 ± 2.0 | 655 | 7.7 ± 1.5 | 8.4 ± 1.6 | 8.1 ± 1.4 |
52–119 | 379 | 8.0 ± 2.0 | 813 | 7.7 ± 1.7 | 8.5 ± 1.8 | 8.1 ± 1.6 |
SOFA score on admission to the ICU | * | *** | ** | |||
0–3 | 188 | 8.5 ± 2.5 | 353 | 8.2 ± 2.1 | 8.8 ± 1.9 | 8.5 ± 1.9 |
4–5 | 169 | 8.5 ± 2.3 | 375 | 8.1 ± 1.8 | 8.7 ± 1.8 | 8.4 ± 1.8 |
6–8 | 292 | 8.5 ± 2.0 | 665 | 8.0 ± 1.6 | 8.6 ± 1.7 | 8.3 ± 1.5 |
>8 | 521 | 8.1 ± 2.1 | 1077 | 7.7 ± 1.7 | 8.6 ± 1.8 | 8.1 ± 1.6 |
ICU length of stay, days | *** | *** | *** | *** | ||
1 | 197 | 7.8 ± 2.3 | 235 | 7.8 ± 2.2 | 8.0 ± 2.2 | 7.9 ± 2.2 |
2–3 | 360 | 8.4 ± 2.1 | 589 | 8.2 ± 1.8 | 8.6 ± 1.8 | 8.4 ± 1.7 |
4–7 | 318 | 8.5 ± 2.1 | 629 | 8.1 ± 1.7 | 8.7 ± 1.8 | 8.4 ± 1.7 |
>7 | 271 | 8.3 ± 2.1 | 944 | 7.6 ± 1.5 | 8.7 ± 1.7 | 8.1 ± 1.4 |
Sepsis | * | ** | ||||
No | 734 | 8.4 ± 2.2 | 1283 | 8.1 ± 1.9 | 8.6 ± 1.8 | 8.4 ± 1.8 |
Yes | 436 | 8.1 ± 2.0 | 1187 | 7.7 ± 1.6 | 8.6 ± 1.7 | 8.1 ± 1.5 |
Geographic region | *** | *** | ** | *** | ||
Africa | 24 | 9.0 ± 2.4 | 38 | 8.5 ± 2.2 | 9.1 ± 2 | 8.8 ± 2 |
Middle East | 35 | 7.7 ± 2.3 | 111 | 7.4 ± 1.4 | 8.3 ± 1.6 | 7.8 ± 1.4 |
South America | 86 | 8.7 ± 2.4 | 205 | 8.0 ± 2.0 | 8.7 ± 2.0 | 8.3 ± 1.9 |
North America | 92 | 8.2 ± 2 | 183 | 7.5 ± 1.6 | 8.3 ± 1.6 | 7.9 ± 1.4 |
Western Europe | 510 | 8.1 ± 1.8 | 1099 | 7.8 ± 1.4 | 8.5 ± 1.5 | 8.1 ± 1.4 |
Eastern Europe | 211 | 8.8 ± 2.2 | 378 | 8.4 ± 2 | 9.3 ± 2 | 8.9 ± 1.9 |
Oceania | 39 | 8.5 ± 1.9 | 91 | 7.9 ± 1.5 | 8.5 ± 1.5 | 8.2 ± 1.4 |
South East Asia | 110 | 8.0 ± 2.4 | 232 | 7.7 ± 1.9 | 8.5 ± 1.9 | 8.1 ± 1.8 |
South Asia | 63 | 8.8 ± 3.2 | 133 | 8.1 ± 2.5 | 8.9 ± 2.4 | 8.5 ± 2.3 |