Table 1:
Characteristics of study population by transfusion status (red blood cells, platelets, or plasma).
| Characteristic | Overall (N = 33105765) |
Non-transfused (N = 30993004) |
Transfused * (N = 2112761) |
|||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| Male | 14123169 | 42.7% | 13173274 | 42.5% | 949895 | 45.0% |
| Female | 18982596 | 57.3% | 17819730 | 57.5% | 1162866 | 55.0% |
| Age group, years | ||||||
| < 18 | 5023844 | 15.2% | 4946134 | 16.0% | 77710 | 3.7% |
| 18–44 | 8157756 | 24.6% | 7888546 | 25.5% | 269210 | 12.7% |
| 45–64 | 8240624 | 24.9% | 7649553 | 24.7% | 591070 | 28.0% |
| ≥65 | 11683541 | 35.3% | 10508770 | 33.9% | 1174771 | 55.6% |
| Race | ||||||
| White | 21823627 | 65.9% | 20447617 | 66.0% | 1376011 | 65.1% |
| Black | 4918867 | 14.9% | 4539212 | 14.6% | 379655 | 18.0% |
| Hispanic | 4011811 | 12.1% | 3795071 | 12.2% | 216740 | 10.3% |
| Asian/Pacific Islander | 960535 | 2.9% | 899950 | 2.9% | 60585 | 2.9% |
| Native American/Other | 1390924 | 4.2% | 1311154 | 4.2% | 79770 | 3.8% |
| Admission type | ||||||
| Non-elective | 25939518 | 78.4% | 24200917 | 78.1% | 1738601 | 82.3% |
| Elective | 7166247 | 21.6% | 6792087 | 21.9% | 374160 | 17.7% |
| Length of stay, days † | - | 3 (2–5) | - | 3 (2–5) | - | 6 (3–10) |
| Number of diagnoses † | - | 9 (5–14) | - | 8 (4–14) | - | 15 (10–20) |
| Number of procedures †‡ | - | 1 (0–2) | - | 1 (0–2) | - | 2 (1–4) |
| In-hospital mortality | 631795 | 1.9% | 503245 | 1.6% | 128550 | 6.1% |
| Hospital location/teaching status | ||||||
| Rural | 3056717 | 9.2% | 2883953 | 9.3% | 172765 | 8.2% |
| Urban non-teaching | 8813331 | 26.6% | 8239852 | 26.6% | 573480 | 27.1% |
| Urban teaching | 21235716 | 64.1% | 19869199 | 64.1% | 1366517 | 64.7% |
| Hospital Census region | ||||||
| Northeast | 6502407 | 19.6% | 6084482 | 19.6% | 417925 | 19.8% |
| Midwest | 6608279 | 20.0% | 6246379 | 20.2% | 361900 | 17.1% |
| South | 13380773 | 40.4% | 12475772 | 40.3% | 905001 | 42.8% |
| West | 6614306 | 20.0% | 6186371 | 20.0% | 427935 | 20.3% |
| Primary diagnosis category | ||||||
| Hematology | 504990 | 1.5% | 249160 | 0.8% | 255830 | 12.1% |
| Solid Tumors | 1284886 | 3.9% | 1132781 | 3.7% | 152105 | 7.2% |
| Infectious Diseases | 1625031 | 4.9% | 1417070 | 4.6% | 207960 | 9.8% |
| Endocrine | 1218856 | 3.7% | 1168036 | 3.8% | 50820 | 2.4% |
| Mental Illness | 1920679 | 5.8% | 1898309 | 6.1% | 22370 | 1.1% |
| Nervous/Sensory | 804585 | 2.4% | 788055 | 2.5% | 16530 | 0.8% |
| Circulatory | 4818822 | 14.6% | 4537342 | 14.6% | 281480 | 13.3% |
| Respiratory | 2784481 | 8.4% | 2671771 | 8.6% | 112710 | 5.3% |
| Gastrointestinal/Genitourinary | 4553392 | 13.8% | 4089327 | 13.2% | 464065 | 22.0% |
| Musculoskeletal | 2586842 | 7.8% | 2466267 | 8.0% | 120575 | 5.7% |
| OB-GYN/Congenital | 7482265 | 22.6% | 7393775 | 23.9% | 88490 | 4.2% |
| Injury/Poison | 2618186 | 7.9% | 2309026 | 7.5% | 309160 | 14.6% |
| Other | 902750 | 2.7% | 872085 | 2.8% | 30665 | 1.5% |
*
Refers to discharges with transfusion of allogenic red blood cells, platelets or plasma.
†
Data are the median and the corresponding interquartile range.
‡
Excludes codes for red blood cell, platelet, and plasma transfusions.