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Table 2 Influence of disease related factors on BMDa at the spine and femoral neck.

From: Influence of arthritis and non-arthritis related factors on areal bone mineral density (BMDa) in women with longstanding inflammatory polyarthritis: a primary care based inception cohort

 

Baseline

10th Anniversary

 

Femoral Neck (g/cm2)

ß1 coefficient

Lumbar Spine (g/cm2)

ß1 coefficient

Femoral Neck (g/cm2)

ß1 coefficient

Lumbar Spine (g/cm2)

ß1 coefficient

Swollen joint count:

    

Lower

Referent

Referent

Referent

Referent

Mid

-0.043 (-0.096, 0.009)

0.003 (-0.061, 0.066)

-0.015 (-0.068, 0.039)

-0.061 (-0.123, 0.001)

Upper

-0.024 (-0.073, 0.025)

-0.012 (-0.071, 0.048)

-0.018 (-0.071, 0.035)

-0.020 (-0.081, 0.040)

Tender joint count:

    

Lower

Referent

Referent

Referent

Referent

Mid

0.001 (-0.051, 0.052)

-0.020 (-0.081, 0.042)

-0.025 (-0.075, 0.026)

-0.015 (-0.075, 0.045)

Upper

-0.023 (-0.076, 0.029)

-0.027 (-0.090, 0.036)

0.004 (-0.051, 0.058)

-0.007 (-0.070, 0.057)

Both swollen & tender jt count:

    

Lower

Referent

Referent

Referent

Referent

Mid

0.022 (-0.030, 0.074)

-0.007 (-0.070, 0.056)

-0.012 (-0.078, 0.055)

0.020 (-0.059, 0.098)

Upper

-0.009 (-0.059, 0.040)

0.002 (-0.058, 0.061)

-0.001 (-0.051, 0.048)

0.008 (-0.050, 0.066)

Deformed joint count:

    

Lower

-

-

Referent

Referent

Mid

  

-0.047 (-0.098, 0.004)

-0.059 (-0.121, 0.003)

Upper

  

-0.067 (-0.117, -0.018)*

-0.046 (-0.106, 0.015)

Erosive joint count:

    

Lower

-

-

Referent

Referent

Mid

  

-0.084 (-0.160, -0.008)*

-0.126 (-0.213, -0.039)*

Upper

-

-

-0.031 (-0.100, 0.039)

-0.014 (-0.093, 0.066)

CRP level:

    

Normal <10 mg/L

Referent

Referent

Referent

Referent

Elevated ≥10 mg/L

0.044 (-0.003, 0.091)

0.041 (-0.017, 0.100)

0.031 (-0.013, 0.075)

0.030 (-0.026, 0.086)

HAQ score (0-3)

-0.004 (-0.034, 0.027)

-0.003 (-0.040, 0.034)

-0.003 (-0.031, 0.025)

-0.010 (-0.043, 0.024)

Steroid use (ever vs never)

-

-

0.006 (-0.055, 0.067)

0.008 (-0.065, 0.081)

DMARD use (ever vs never)

-

-

0.016 (-0.035, 0.068)

-0.016 (-0.079, 0.048)

  1. 1adjusted for age. *p < 0.05