| Pre-O group | Post-O group | P value |
---|---|---|---|
Number of patients | 296 | 324 | Â |
Hb - admission (mg/dL; SD; range) | 11.96 (1.76; 7 to 16.2) | 11.97 (1.70; 5 to 18.2) | 0.9 |
Hb 24 h post-surgery (mg/dL; SD; range) | 9.43 (1.29; 5.7 to 13.5) | 9.56 (1.31; 5.6 to 14.6) | 0.2 |
Hb - discharge (mg/dL; SD; range) | 10.07 (0.82; 8.2 to 13.3) | 10.27 (0.84; 8.5 to 14.5) | 0.003 * |
Hb - lowest peak (mean; SD; range) | 8.33 (0.95; 5.1 to 13.1) | 8.42 (1; 3.5 to 13.1) | 0.3 |
Post-surgery lowest peak day (mean; SD; range) | 2.08 (2.02; −7 to 9) | 1.96 (2.14; −12 to 13) | 0.5 |
Total transfusions | 541 | 551 | Â |
Transfusions per patient (mean; SD; range) | 1.84 (1.4; 0 to 8) | 1.7 (1.46; 0 to 8) | 0.2 |
Length of stay (mean; SD; range) | 11.83 (4.34; 5 to 45) | 12.29 (4.49; 5 to 39) | 0.2 |
Pre-op days (mean; SD; range) | 2.44 (2.34; 0 to 15) | 2.32 (2.13; 0 to 21) | 0.5 |
Post-op days (mean; SD; range) | 9.38 (3.73; 0 to 43) | 9.96 (4.01; 1 to 37) | 0.06 |