Table 1

Characteristics of participants

ERT1-150(n=42) Controls (n=39) p Value
Age (years)58.0 (6.1)56.0 (5.4)0.13
Weight (kg)69.9 (11.6)70.6 (16.0)0.82
Height (cm)164 (7.3)163 (6.9)0.63
Body mass index (kg/m2)26.1 (4.3)26.6 (5.9)0.66
History of knee injury11 (26%)13 (33%)0.481-151
Prior knee surgery2 (5%)4 (10%)0.421-152
Smoker15 (36%)18 (46%)0.341-151
Age at menopause46.36 (5.2)49.4 (5.0)0.008
Years since menopause11.6 (6.6)6.6 (8.6)0.004
Hysterectomy16 (38%)4 (10%)0.0041-151
Current level of physical exercise7.2 (1.5)7.1 (1.9)0.77
Radiological osteoarthritis0 (0%)4 (8%)0.051-152
Medial tibial plateau area (cm2)1.66 (0.17)1.68 (0.22)0.76
Lateral tibial plateau area (cm2)1.03 (0.134)1.08 (0.13)0.10

  • Except where indicated, values are presented as mean (SD).

  • ↵1-150 ERT = oestrogen replacement therapy.

  • ↵1-151 χ2 test;

  • ↵1-152 Fisher's exact test; all others are unpaired t tests.