Table 2.
Comparison between the nonsqueaking and squeaking groups
| Parameter | Nonsqueaking | Squeaking | P value |
|---|---|---|---|
| Number of hips | 165 | 8 | |
| Gender | 0.015 | ||
| Male | 50 | 6 | |
| Female | 115 | 2 | |
| Age (years)* | 52.8 | 46 | 0.232 |
| Height (cm)* | 162.8 | 161.4 | 0.951 |
| Weight (kg)* | 60.2 | 60.9 | 0.943 |
| Body mass index (kg/m2)* | 22.8 | 22.9 | 0.956 |
| Abduction angle of cup (°)* | 48.3 | 50.5 | 0.360 |
| Cup size (mm)* | 52.7 | 52.4 | 0.835 |
| Size of ceramic head component | 0.002 | ||
| 28 mm | 133 | 2 | |
| 32 mm | 32 | 6 | |
| Head-cup diameter ratio* | 0.550 | 0.552 | 0.937 |
| Neck length of ceramic head component | |||
| Short | 7 | 0 | 0.690 |
| Medium | 124 | 7 | |
| Long | 34 | 1 |
* Values are expressed as means.