Outcomes for orthopaedic total hip replacement, 2010–2014
| Characteristic | 2010–2011 | 2012–2013 | 2014 | Sig P |
| Baseline | Intervention | Postintervention | Baseline–post | |
| Surgical outcomes | ||||
| LOS, mean (SD) | 3.2 (1.2) | 2.8 (1.0) | 2.4 (1.5) | <0.001 |
| LOS for BMI<30 | 3.2 (1.3) | 2.7 (1.0) | 2.3 (1.6) | <0.001 |
| LOS for BMI≥30 | 3.1 (1.0) | 2.8 (1.0) | 2.5 (1.4) | <0.001 |
| LOS≥4 days (%) | 110 (19) | 86 (14) | 42 (9) | <0.001 |
| 30-day readmission (%)* | 18 (3) | 13 (2) | 5 (1) | 0.032 |
| Any systole≤90 (%) | 90 (16) | 37 (6) | 16 (4) | <0.001 |
| Posthaemorrhagic anaemia (%)† | 471 (82) | 519 (81) | 254 (57) | <0.001 |
| Discharge status (%) | <0.001 | |||
| Home/home health service | 415 (72) | 500 (78) | 405 (91) | |
| Skilled nursing | 134 (23) | 119 (19) | 39 (9) | |
| Other | 27 (5) | 18 (3) | 2 (1) | |
| MET call, any (%) | 27 (5) | 32 (5) | 9 (2) | 0.022 |
| Operating room minutes‡, mean (SD) | 98 (39) | 93 (36) | 84 (22) | 0.031 |
| Patient Satisfaction Survey (five-point scale) | ||||
| Recommend hospital | ||||
| Mean (SD) | 4.71 (0.67) | 4.85 (0.56) | 4.90 (0.47) | 0.013 |
| Very good (%) | 127 (79) | 183 (90) | 103 (95) | <0.001 |
| Pain controlled | ||||
| Mean (SD) | 4.65 (0.69) | 4.73 (0.64) | 4.75 (0.57) | 0.21 |
| Very good (%) | 114 (74) | 164 (80) | 92 (79) | 0.27 |
| Ready for discharge | ||||
| Mean (SD) | 4.63 (0.64) | 4.75 (0.54) | 4.66 (0.62) | 0.78 |
| Very good (%) | 112 (70) | 163 (80) | 83 (72) | 0.72 |