Table 4 multivariale logistic regression analysis on risk factors of osteoporosis in RA patients

  < 70 yrs

1

  ≥ 70 yrs

2.28

1.40–3.58

<0.001

  ≥ 25

1

  < 25

2.14

1.52–3.02

<0.001

  < 10 yrs

1

  ≥ 10 yrs

1.46

1.07–2.00

0.032

Cumulative dose of GC (g)

1.03

1.01–1.05

0.009

RF, Positivity

0.86

0.55–1.36

0.690

ACPA, positivity

1.00

0.65–1.52

0.718

HAQ score

1.37

1.11–1.69

0.003

DAS28-ESR

0.69

0.39–1.24

0.217

ESR (mm/h)

0.94

0.75–1.18

0.571

CRP (mg/dL)

1.01

0.89–1.16

0.853