Study population characteristics for the mortality analyses (N = 89 799)
| Characteristic . | Value . |
|---|---|
| Patient age, y | |
| Mean ± SD | 68.8 ± 16.6 |
| Median [1st, 99th] | 71.0 [23.0, 96.0] |
| Patient sex | |
| Male | 40 490 (45.1%) |
| Female | 49 309 (54.9%) |
| Patient Charlson comorbidity score | |
| Mean ± SD | 2.68 ± 2.46 |
| Median [1st, 99th] | 2.00 [0, 10.0] |
| ABO blood group patient | |
| 0 | 37 022 (41.2%) |
| A | 39 101 (43.5%) |
| AB | 3879 (4.3%) |
| B | 9797 (10.9%) |
| RhD blood group patient | |
| Negative | 14 108 (15.7%) |
| Positive | 75 691 (84.3%) |
| Hospital | |
| Bispebjerg | 11 192 (12.5%) |
| Bornholms | 2208 (2.5%) |
| Herlev | 19 589 (21.8%) |
| Hvidovre | 16 628 (18.5%) |
| Nordsjaellands | 13 628 (15.2%) |
| Rigshospitalet | 26 554 (29.6%) |
| Type of patient | |
| Hematology | 3843 (4.3%) |
| Oncology | 5914 (6.6%) |
| Thoracic surgery | 5205 (5.8%) |
| Other | 74 837 (83.3%) |
| Follow-up time | |
| Mean ± SD | 26.7 ± 6.67 |
| Median [1st, 99th] | 29.0 [1.00, 29.0] |
| MTP censoring | |
| Yes | 180 (0.2%) |
| No | 89 619 (99.8%) |
| Outcome within follow-up | |
| Yes | 11 408 (12.7%) |
| No | 78 391 (87.3%) |
| Total no. of RBCs received | |
| Mean ± SD | 3.81 ± 5.07 |
| Median [1st, 99th] | 2.00 [1.00, 23.0] |
| Percentage of RBCs stored for maximum 1 wk | |
| Mean ± SD | 5.14 ± 18.3 |
| Median [1st, 99th] | 0 [0, 100] |
| Percentage of RBCs stored for maximum 2 wk | |
| Mean ± SD | 41.2 ± 44.1 |
| Median [1st, 99th] | 25.0 [0, 100] |
| Percentage of RBCs stored for maximum 3 wk | |
| Mean ± SD | 72.9 ± 40.2 |
| Median [1st, 99th] | 100 [0, 100] |
| Percentage of RBCs stored for maximum 4 wk | |
| Mean ± SD | 88.8 ± 28.0 |
| Median [1st, 99th] | 100 [0, 100] |
| Characteristic . | Value . |
|---|---|
| Patient age, y | |
| Mean ± SD | 68.8 ± 16.6 |
| Median [1st, 99th] | 71.0 [23.0, 96.0] |
| Patient sex | |
| Male | 40 490 (45.1%) |
| Female | 49 309 (54.9%) |
| Patient Charlson comorbidity score | |
| Mean ± SD | 2.68 ± 2.46 |
| Median [1st, 99th] | 2.00 [0, 10.0] |
| ABO blood group patient | |
| 0 | 37 022 (41.2%) |
| A | 39 101 (43.5%) |
| AB | 3879 (4.3%) |
| B | 9797 (10.9%) |
| RhD blood group patient | |
| Negative | 14 108 (15.7%) |
| Positive | 75 691 (84.3%) |
| Hospital | |
| Bispebjerg | 11 192 (12.5%) |
| Bornholms | 2208 (2.5%) |
| Herlev | 19 589 (21.8%) |
| Hvidovre | 16 628 (18.5%) |
| Nordsjaellands | 13 628 (15.2%) |
| Rigshospitalet | 26 554 (29.6%) |
| Type of patient | |
| Hematology | 3843 (4.3%) |
| Oncology | 5914 (6.6%) |
| Thoracic surgery | 5205 (5.8%) |
| Other | 74 837 (83.3%) |
| Follow-up time | |
| Mean ± SD | 26.7 ± 6.67 |
| Median [1st, 99th] | 29.0 [1.00, 29.0] |
| MTP censoring | |
| Yes | 180 (0.2%) |
| No | 89 619 (99.8%) |
| Outcome within follow-up | |
| Yes | 11 408 (12.7%) |
| No | 78 391 (87.3%) |
| Total no. of RBCs received | |
| Mean ± SD | 3.81 ± 5.07 |
| Median [1st, 99th] | 2.00 [1.00, 23.0] |
| Percentage of RBCs stored for maximum 1 wk | |
| Mean ± SD | 5.14 ± 18.3 |
| Median [1st, 99th] | 0 [0, 100] |
| Percentage of RBCs stored for maximum 2 wk | |
| Mean ± SD | 41.2 ± 44.1 |
| Median [1st, 99th] | 25.0 [0, 100] |
| Percentage of RBCs stored for maximum 3 wk | |
| Mean ± SD | 72.9 ± 40.2 |
| Median [1st, 99th] | 100 [0, 100] |
| Percentage of RBCs stored for maximum 4 wk | |
| Mean ± SD | 88.8 ± 28.0 |
| Median [1st, 99th] | 100 [0, 100] |
SD, standard deviation.