Table 3.

Unadjusted and adjusted linear regression analysis with TBR_max as the dependent variable

Characteristic	Unadjusted analyses		Adjusted analysesα
	B (95 % CI)	p value	B (95 % CI)	p value
ESR	0.009(−0.029-0.048)	0.602	0.024(−0.021-0.070)	0.256
CRP	−0.056(−0.272-0.159)	0.584	−0.075(−0.318-0.168)	0.513
DAS28	0.060(−0.623-0.744)	0.850	0.087(−0.638-0.910)	0.831
Disease duration	0.023(−0.003-0.050)	0.084	0.038(0.002-0.074)	0.040
Disease duration until start of TNF inhibition	0.064(0.015-0.113)	0.015	0.081(0.004-0.158)	0.040

Data are unadjusted coefficient (B) with 95 % confidence intervals (CI)

TBR _max maximum target-to-background ratio, ESR erythrocyte sedimentation rate, CRP C-reactive protein, DAS28 disease activity score based on 28 joints

^αAdjusted for BMI, systolic blood pressure and current smoking