Table 4

Correlations between several independent variables and DAS44 score at 13 weeks

Time point	Independent variable	R² value	P value
Baseline	Visual uptake hands	0.03	0.36
	Visual uptake feet	0.01	0.49
	Visual uptake whole body	0.03	0.31
	SUV hands	0.01	0.67
	SUV feet	0.02	0.47
	SUV whole body	0.00	0.86
T=2 weeks	Visual uptake hands	0.06	0.15
	Visual uptake feet	0.04	0.29
	Visual uptake whole body	0.09	0.09
	SUV hands	0.00	0.79
	SUV feet	0.14	0.04
	SUV whole body	0.03	0.04
Delta 0–2 weeks	Visual uptake hands	0.00	0.72
	Visual uptake feet	0.00	0.86
	Visual uptake whole body	0.01	0.63
	SUV hands	0.01	0.70
	SUV feet	0.04	0.25
	SUV whole body	0.01	0.51

DAS, Disease Activity Score; SUV, standardised uptake values.