Table 7 Changes of Hospital Case numbers of TKA over time with Post-Hoc-Tests
Percentage of hospitals with caseload ≥ 50/year | Post-hoc-tests (Bonferroni-correction) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Mean | SD | 95%-confidence interval | ||||||||
Lower limit | Upper limit | 2006 | 2008 | 2010 | 2012 | 2013 | 2014 | |||
2006 | 88.06 | 1.68 | 84.77 | 91.35 | x | |||||
2008 | 91.63 | 1.47 | 88.74 | 94.53 | 0.916 | x | ||||
2010 | 90.13 | 1.51 | 87.17 | 93.10 | 1.000 | 1.000 | x | |||
2012 | 77.94 | 2.01 | 74.0 | 81.87 | < 0.001 | < 0.001 | < 0.001 | x | ||
2013 | 71.59 | 2.23 | 67.21 | 75.96 | < 0.001 | < 0.001 | < 0.001 | 0.011 | x | |
2014 | 73.27 | 2.2 | 68.95 | 77.60 | < 0.001 | < 0.001 | < 0.001 | 0.407 | 1.000 | x |