Table 2

Prevalence of OA and risk of OA by HRT group presented as odds ratios and 95% confidence intervals

Joint site and OA grade Number affected (%) Current users (n=72) Ever users (n=129)
Affected (n) Adjusted2-150 odds ratios + 95% CI Affected (n) Adjusted2-150 odds ratios + 95% CI
Cases Controls Cases Controls
Knee osteophytes143 (14.5)4680.31 (0.11, 0.93)151120.80 (0.43, 1.49)
Knee narrowing
 Gd1+359 (36.7)20520.70 (0.41, 1.22)49781.21 (0.81, 1.81)
 Gd2+34 (3.5)1710.41 (0.05, 3.15)41231.00 (0.34, 2.96)
Distal interphalangeal joint OA140 (14.2)4500.48 (0.17, 1.42)12870.67 (0.34, 1.35)
Carpometacarpal joint OA160 (16.2)9500.94 (0.44, 2.03)13870.65 (0.34, 1.23)
  • 2-150 Adjusted for age, height, weight, menopausal age, femoral neck BMD.