Table 2 The distribution of CPAK phenotypes and radiographic measurements of arthritic patients from various geographical regions
MacDessi (Australia) n = 500 | Mulpur (India) n = 500 | Toyooka (Japan) n = 500 | Sappey-Marinier (France) n = 1078 | Senel (Turkey) n = 408 | Coetzee (South Africa) n = 608 | This study (Malaysia) n = 500 | |
|---|---|---|---|---|---|---|---|
Gender | |||||||
Male | 190 (38%) | 152 (30%) | 95 (19%) | 780 (72%) | 141 (48%) | 76 (22%) | 160 (32%) |
Female | 310 (62%) | 348 (70%) | 405 (81%) | 298 (28%) | 155 (52%) | 268 (78%) | 340 (68%) |
Agea, years | 66 (Range, 44–88) | 62.3 ± 8.2 | 75.1 ± 8.0 | 71.3 ± 8.0 | 54.5 ± 7.9 | 68.4 ± 9.2 | 66.4 ± 6.7 |
aHKAa, degrees | − 0.8 ± 2.8 | − 6.85 ± 5.0 | − 3.5 ± 4.8 | − 1.7 ± 3.5 | − 1.4 ± 3.9 | 1.0 ± 4.8 | 1.8 ± 4.2 |
JLOa, degrees | NA | 173.5 ± 5.0 | 172.4 ± 3.8 | 176.0 ± 4.5 | 174.6 ± 3.7 | 175.2 ± 3.4 | 173.4 ± 3.5 |
mLDFAa, degrees | 88.1 ± 2.1 | 90.2 ± 3.6 | 88.0 ± 2.9 | 88.9 ± 3.0 | 88.0 ± 2.9 | 87.2 ± 3.0 | 87.6 ± 2.4 |
mMPTAa, degrees | 87.3 ± 2.1 | 83.3 ± 3.4 | 84.4 ± 3.3 | 87.1 ± 2.8 | 86.6 ± 2.6 | 88.2 ± 2.8 | 85.8 ± 3.0 |
CPAK distribution, % | |||||||
Type I | 19.4 | 58.8 | 53.8 | 33.4 | 28.2 | 15.5 | 43.4 |
Type II | 32.2 | 13.8 | 25.4 | 19.5 | 31.6 | 25.5 | 27.6 |
Type III | 15.4 | 1.4 | 8.2 | 10.6 | 13.5 | 28.6 | 14.2 |
Type IV | 9.8 | 18.2 | 7.2 | 10.2 | 10.3 | 7.4 | 4.0 |
Type V | 14.6 | 3.4 | 4.4 | 18.9 | 12.3 | 8.6 | 8.6 |
Type VI | 7.4 | 1.0 | 1.0 | 6.3 | 2.5 | 13.2 | 2.2 |
Type VII | 0.6 | 2.8 | 0 | 0.4 | 1.0 | 0.5 | 0 |
Type VIII | 1.6 | 0.6 | 0 | 0.6 | 0 | 0.2 | 0 |
Type IX | 0.4 | 0 | 0 | 0.1 | 0.7 | 0.7 | 0 |