Table 3 Univariate logistic regression analysis of risk factors for ankle OA

Age > 45years

2.29(0.63–0.87)

0.922

0.032

Male

0.54(0.18–0.63)

0.560

< 0.001

BMI > 25

1.34(0.32–0.56)

0.448

< 0.001

Double-level^a

3.79(1.51–9.53)

0.470

0.005

Diabetes

0.31(0.13–0.75)

0.455

0.009

Hypertension

0.42(0.17–0.42)

0.437

0.046

Osteoporosis

1.58(0.21–1.5)

0.506

< 0.001

Glucocorticoid intake

0.33(0.13–0.8)

0.451

0.014

Duration of disease > 24 months

0.53(0.31–0.52)

0.274

0.002

DS > 5 cm

1.01(0.56–0.71)

0.297

0.675

EFT > 300days

1.41(0.51–0.69)

0.118

0.999

EFI > 50days/cm

3.17(0.97–1.09)

0.931

0.015

AOFAS < 50

1.26(1.18–1.34)

0.032

< 0.001