Blood components transfused and patient outcomes: 2008-2018
| Parameters . | 2008 . | 2009 . | 2010 . | 2011 . | 2012 . | 2013 . | 2014 . | 2015 . | 2016 . | 2017 . | 2018 . |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Patient activity | |||||||||||
| No. of RBC transfusions | 29 331 | 28 855 | 24 860 | 22 727 | 22 725 | 22 772 | 24 421 | 23 712 | 26 599 | 24 777 | 24 924 |
| No. of plasma transfusions | 14 871 | 12 970 | 12 811 | 10 300 | 10 108 | 9 722 | 10 193 | 9 237 | 9 160 | 8 015 | 8 143 |
| No. of platelet transfusions | 7 880 | 8 412 | 8 355 | 8 286 | 7 398 | 8 052 | 9 906 | 9 218 | 9 846 | 8 792 | 9 629 |
| No. of patient-days at risk* | 156 374 | 165 153 | 180 652 | 186 004 | 197 855 | 201 908 | 211 558 | 220 906 | 226 051 | 224 955 | 228 179 |
| Case mix index | 1.95 | 1.98 | 1.95 | 2.02 | 2.03 | 2.07 | 2.23 | 2.28 | 2.41 | 2.47 | 2.47 |
| No. of RBC units per 100 days at risk | 18.8 (± 1.3) | 18.3 (± 1.8) | 14.0 (± 1.4) | 12.4 (± 0.8) | 11.6 (± 0.8) | 11.5 (± 0.8) | 11.7 (± 0.7) | 10.7 (± 0.8) | 11.7 (NA) | 11.0 (NA) | 10.9 (NA) |
| Patient outcomes | |||||||||||
| Mortality | 2.83 | 2.81 | 2.59 | 2.53 | 2.55 | 2.44 | 2.59 | 2.41 | 2.75 | 2.67 | 2.56 |
| 30-day re-admissions | 10.4 | 10.7 | 11.5 | 11.0 | 10.6 | 10.4 | 10.6 | 10.8 | 10.9 | 11.1 | 11.0 |
| LOS, d (IQR) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) |
| Parameters . | 2008 . | 2009 . | 2010 . | 2011 . | 2012 . | 2013 . | 2014 . | 2015 . | 2016 . | 2017 . | 2018 . |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Patient activity | |||||||||||
| No. of RBC transfusions | 29 331 | 28 855 | 24 860 | 22 727 | 22 725 | 22 772 | 24 421 | 23 712 | 26 599 | 24 777 | 24 924 |
| No. of plasma transfusions | 14 871 | 12 970 | 12 811 | 10 300 | 10 108 | 9 722 | 10 193 | 9 237 | 9 160 | 8 015 | 8 143 |
| No. of platelet transfusions | 7 880 | 8 412 | 8 355 | 8 286 | 7 398 | 8 052 | 9 906 | 9 218 | 9 846 | 8 792 | 9 629 |
| No. of patient-days at risk* | 156 374 | 165 153 | 180 652 | 186 004 | 197 855 | 201 908 | 211 558 | 220 906 | 226 051 | 224 955 | 228 179 |
| Case mix index | 1.95 | 1.98 | 1.95 | 2.02 | 2.03 | 2.07 | 2.23 | 2.28 | 2.41 | 2.47 | 2.47 |
| No. of RBC units per 100 days at risk | 18.8 (± 1.3) | 18.3 (± 1.8) | 14.0 (± 1.4) | 12.4 (± 0.8) | 11.6 (± 0.8) | 11.5 (± 0.8) | 11.7 (± 0.7) | 10.7 (± 0.8) | 11.7 (NA) | 11.0 (NA) | 10.9 (NA) |
| Patient outcomes | |||||||||||
| Mortality | 2.83 | 2.81 | 2.59 | 2.53 | 2.55 | 2.44 | 2.59 | 2.41 | 2.75 | 2.67 | 2.56 |
| 30-day re-admissions | 10.4 | 10.7 | 11.5 | 11.0 | 10.6 | 10.4 | 10.6 | 10.8 | 10.9 | 11.1 | 11.0 |
| LOS, d (IQR) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) | 3 (2-6) |
This table has been updated from previously published analyses.30 Values are mean (± standard deviation) if available, except 30-day re-admission, mortality rates (per 100 discharges), and length of stay (LOS), which is represented as median (interquartile range [IQR]). Mortality rates decreased significantly (P < .0002) from 2008 to 2015 and remained stable through 2018.
NA, not applicable.
Patient-days at risk takes into account both number of discharges and LOS. There was a 42% reduction in RBC units per 100 patient-days at risk from 2009 to 2015, remaining stable thereafter through 2018.