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. 2013 Apr 3;8(4):e59500. doi: 10.1371/journal.pone.0059500

Table 1. Patient Characteristics.

Primary THR Kellgren Grade 0–2 Kellgren Grade 3+4 All Patients
Age at Joint Replacement 65.1 (7.8) 67.4 (8.7) 66.6 (8.5)
Males 23.9% 44.3% 37.5%
Follow-up (years) 2.83 (1.0) 2.79 (0.9) 2.8 (0.93)
Charnley:
Class A: 25.8% 24.0% 24.6%
Class B: 14.6% 13.7% 14.0%
Class C: 59.6% 62.3% 61.4%
Body Mass Index:
<25: 29.2% 34.1% 32.5%
25–30: 41.6% 46.4% 44.8%
30–35: 23.6% 16.2% 18.7%
>35: 5.60% 3.40% 4.10%
Primary TKR Kellgren Grade 0–2 Kellgren Grade 3+4 All Patients
Age at JointReplacement 65.1 (10.3) 69.5 (8.6) 69.1 (8.9)
Males 31.8% 30.9% 31.0%
Follow-up (years) 3.1 (1.1) 2.79 (0.9) 2.82 (0.93)
Charnley:
Class A: 4.50% 19.0% 17.5%
Class B: 4.50% 11.4% 10.7%
Class C: 90.9% 69.6% 71.8%
Body MassIndex:
<25: 33.3% 14.7% 16.3%
25–30: 27.8% 46.7% 45.0%
30–35: 33.3% 21.2% 22.3%
>35: 5.60% 17.4% 16.3%

All values are mean (SD), unless stated otherwise.