Norrtälje Hospital | Standard care hospitals | ||||
---|---|---|---|---|---|
n = 407 | n = 3501 | ||||
% | n | % | n | P-valuec | |
ASAa | |||||
I | 12.5 | 51 | 13.3 | 466 | 0.080 |
II | 50.4 | 205 | 51.7 | 1809 | |
III | 36.4 | 148 | 32.2 | 1128 | |
IV | 0.5 | 2 | 1.3 | 47 | |
Missing | 0.2 | 1 | 1.5 | 51 | |
Charnley class | |||||
A | 51.4 | 209 | 42.0 | 1640 | 0.085 |
B | 5.4 | 22 | 7.9 | 278 | |
C | 43.2 | 176 | 45.2 | 1583 | |
Hip side for surgery | |||||
Right | 59.0 | 240 | 57.1 | 1999 | 0.470 |
Type of incision approachb | |||||
Posterior approach | 61.4 | 250 | 46.4 | 1625 | < 0.001 |
Direct lateral position | 37.6 | 153 | 49.4 | 1731 | |
Other incisions | 0.9 | 4 | 4.0 | 141 | |
Missing | 0.0 | 0 | 0.1 | 4 |