Open Access
Table A.10.
Subgroup analysis by femoral size.
| Follow up visit | Mean value and comparison within time period |
Comparison by time within subgroups (Bonferroni adjusted p-value) |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <10 |
≥10 |
|
<10 |
≥10 |
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| Unadjusted mean ± SD (n) | Unadjusted mean ± SD (n) | p-value | Preop | 6 Month | 1 Year | 2 Year | 3 Year | Preop | 6 Month | 1 Year | 2 Year | 3 Year | |
| UCLA | |||||||||||||
| Preop | 3.5 ± 1.3 (93) | 4.1 ± 1.7 (129) | 0.0060* | − | − | − | − | − | − | − | − | − | − |
| 6 Month | 5.6 ± 1.4 (84) | 5.5 ± 1.4 (111) | 0.4442 | <.0001* | − | − | − | − | <.0001* | − | − | − | − |
| 1 Year | 6.2 ± 1.5 (72) | 5.7 ± 1.6 (106) | 0.0741 | <.0001* | 0.0039* | − | − | − | <.0001* | 1.0000 | − | − | − |
| 2 Year | 6.2 ± 1.5 (64) | 6.0 ± 1.7 (81) | 0.4584 | <.0001* | 0.0163* | 1.0000 | – | – | <.0001* | 0.0111* | 1.0000 | − | − |
| 3 Year | 6.3 ± 1.4 (62) | 6.1 ± 1.7 (81) | 0.3142 | <.0001* | 0.0098* | 1.0000 | 1.0000 | – | <.0001* | 0.0034* | 1.0000 | 1.0000 | − |
| 5 Year | 6.5 ± 1.4 (44) | 6.3 ± 1.5 (32) | 0.5344 | <.0001* | 0.1310 | 1.0000 | 1.0000 | 1.0000 | <.0001* | 0.2771 | 1.0000 | 1.0000 | 1.0000 |
| EQ5D | |||||||||||||
| Preop | 0.4 ± 0.3 (93) | 0.5 ± 0.3 (129) | 0.1245 | − | − | − | − | − | − | − | − | − | − |
| 6 Month | 0.9 ± 0.2 (81) | 0.9 ± 0.2 (112) | 0.3409 | <.0001* | − | − | − | − | <.0001* | − | − | − | − |
| 1 Year | 0.9 ± 0.2 (71) | 0.9 ± 0.2 (105) | 0.9195 | <.0001* | 0.0072* | − | − | − | <.0001* | 1.0000 | − | − | − |
| 2 Year | 0.9 ± 0.2 (64) | 0.9 ± 0. (80) | 0.1061 | <.0001* | 1.0000 | 0.6837 | − | − | <.0001* | 1.0000 | 1.0000 | − | − |
| 3 Year | 0.9 ± 0.1 (62) | 0.9 ± 0.2 (81) | 0.9483 | <.0001* | 0.5022 | 1.0000 | 1.0000 | – | <.0001* | 1.0000 | 1.0000 | 1.0000 | − |
| 5 Year | 1.0 ± 0.1 (41) | 0.9 ± 0.1 (32) | 0.1239 | <.0001* | 0.0002* | 0.5475 | 0.1208 | 1.0000− | <.0001* | 0.3853 | 1.0000 | 1.0000 | 1.0000 |
| HHS | |||||||||||||
| Preop | 47.9 ± 13.1 (93) | 50.7 ± 12.6 (129) | 0.1137 | − | − | − | − | − | − | − | − | − | − |
| 6 Month | 93.0 ± 9.2 (82) | 94.3 ± 8.6 (112) | 0.2306 | <.0001* | − | − | − | − | <.0001* | − | − | − | − |
| 1 Year | 95.7 ± 6.3 (71) | 96.8 ± 6.9 (106) | 0.0074* | <.0001* | 0.0002* | − | − | − | <.0001* | <.0001* | − | − | − |
| 2 Year | 96.3 ± 5.8 (63) | 96.4 ± 8.1 (81) | 0.0845 | <.0001* | 0.0001* | 1.0000 | − | − | <.0001* | 0.0003* | 1.0000 | – | − |
| 3 Year | 98.5 ± 2.7 (61) | 95.7 ± 8.9 (81) | 0.3012 | <.0001* | <.0001* | 0.0007* | 0.0053* | – | <.0001* | 0.1254 | 1.0000 | 1.0000 | − |
| 5 Year | 97.7 ± 3.8 (42) | 96.7 ± 5.7 (31) | 0.6720 | <.0001* | <.0001* | 0.0456* | 0.2106 | 1.0000 | <.0001* | 0.0356* | 1.0000 | 1.0000 | 1.0000 |
| Oxford | |||||||||||||
| Preop | 21.4 ± 7.6 (93) | 22.6 ± 7.7 (129) | 0.5275 | – | – | – | – | – | – | – | – | – | – |
| 6 Month | 42.6 ± 6.0 (83) | 44.0 ± 5.0 (112) | 0.0411* | <.0001* | – | – | – | – | <.0001* | – | – | – | − |
| 1 Year | 44.9 ± 5.0 (72) | 44.7 ± 4.7 (106) | 0.8265 | <.0001* | <.0001* | − | − | − | <.0001* | 0.3877 | – | – | − |
| 2 Year | 45.5 ± 3.3 (64) | 45.2 ± 4.9 (81) | 0.4259 | <.0001* | <.0001* | 1.0000 | – | – | <.0001* | 0.0199* | 0.3371 | – | − |
| 3 Year | 46.6 ± 2.4 (61) | 45.2 ± 4.8 (81) | 0.1934 | <.0001* | <.0001* | 0.0128* | 0.0124* | – | <.0001* | 0.0442* | 1.0000 | 1.0000 | − |
| 5 Year | 46.8 ± 2.0 (44) | 45.9 ± 3.3 (32) | 0.1677 | <.0001* | <.0001* | 0.0734 | 0.8583 | 1.0000 | <.0001* | 0.0022* | 1.0000 | 1.0000 | 1.0000 |
| Aluminum (μg/L) | |||||||||||||
| Preop | 12.1 ± 2.5 (10) | 12.1 ± 1.5 (21) | 0.5826 | – | – | – | – | – | – | – | – | – | – |
| 6 Month | 11.6 ± 1.8 (9) | 12.5 ± 1.7 (16) | 0.1565 | 1.0000 | – | – | – | – | 1.0000 | – | – | – | – |
| 1 Year | 16.6 ± 5.3 (6) | 13.4 ± 2.6 (18) | 0.1709 | 1.0000 | 1.0000 | – | – | – | 1.0000 | 1.0000 | – | – | – |
| 2 Year | 13.4 ± 3.0 (6) | 13.9 ± 4.0 (15) | 0.6402 | 1.0000 | 1.0000 | 1.0000 | – | – | 1.0000 | 1.0000 | 1.0000 | – | – |
| 5 Year | 14.4 ± 0 (1) | 14.1 ± 2.7 (6) | 1.0000 | 1.0000 | 1.0000 | 1.0000 | – | 1.0000 | 1.0000 | 1.0000 | 1.0000 | – | 1.0000 |
| Titanium (μg/L) | |||||||||||||
| Preop | 1.7 ± 1.7 (4) | 2.5 ± 0.6 (5) | 0.05 | − | − | − | − | − | − | − | − | − | – |
| 6 Month | 2.7 ± 2.7 (16) | 2.2 ± 1.4 (27) | 0.6967 | 1.0000 | − | − | − | − | 1.0000 | − | − | − | – |
| 1 Year | 2.8 ± 2.8 (10) | 2.4 ± 1.6 (25) | 0.3412 | 1.0000 | 1.0000 | − | − | − | 1.0000 | 1.0000 | − | − | – |
| 2 Year | 2.9 ± 2.9 (8) | 2.9 ± 2.9 (19) | 0.2638 | 1.0000 | 1.0000 | 1.0000 | – | – | 1.0000 | 1.0000 | 1.0000 | − | – |
| 5 Year | 0 | 1.3 ± 0.3 (5) | − | − | − | − | − | − | 1.0000 | 1.0000 | 1.0000 | − | 1.0000 |
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