Table 2 Correlations between tophus count and clinical features in all participants (n = 290)

From: Reduced creatinine clearance is associated with early development of subcutaneous tophi in people with gout

Variable	R	p
Age	0.15	0.01
Disease duration	0.10	0.09
Body mass index	−0.10	0.10
Systolic blood pressure	0.01	0.83
Creatinine clearance	−0.22	<0.001
C-reactive protein	0.10	0.11
Serum urate	0.08	0.19
Gout flare frequency	0.06	0.33
Tender joint count	0.26	<0.001
Swollen joint count	0.23	<0.001
HAQ-II	0.18	0.003
Patient global assessment	0.20	0.001
Pain visual analogue scale	0.16	0.006

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