Table 3.
Temporal trends in length of stay, discharge to home and mortality after primary total ankle arthroplasty (TAA)
| All patients | Study Time-periods | Comparison of 2009–10 to 1998–00 | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| 1998–2010 | 1998–2000 | 2001–2002 | 2003–2004 | 2005–2006 | 2007–2008 | 2009–2010 | Last - first period (% Difference) | p-value | |
|
|
|||||||||
| Length of stay mean (SD), days | 2.7 (2.1) | 3 (1.8) | 2.7 (2) | 2.9 (2.7) | 2.7 (3.0) | 2.4 (1.3) | 2.5 (1.8) | −16.7% | <0.0001 |
| Discharge, n (%)a | 0.47 | ||||||||
| Home | 2,767 (87.0) | 340 (87.2) | 490 (89.9) | 463 (88.4) | 300 (86.7) | 450 (83.6) | 724 (85.8) | −1.6% | |
| Inpatient facility | 412 (12.9) | 49 (12.6) | 55 (10.1) | 59 (11.3) | 44 (12.7) | 86 (16.0) | 119 (14.1) | 12.3% | |
| Mortality, n (%) | 4 (0.1) | 0 | 0 | 1 (0.2) | 2 (0.6) | 0 | 1 (0.1) | n/a | n/a |
a
Information missing for 8 patients
n/a, not applicable, since the event rate was zero in the first and low in the last time-period