Findings	Sensitivity (%)	Specificity (%)	LR+	LR−
Asymmetric swelling shown on a radiograph16,17	42	90	4.2	0.64
Hyperuricemia	92	91	10.2	0.09
Monosodium urate crystals in synovial fluid16,17	84	100	167.0	0.16
Podagra (first meta-tarsophalangeal joint involvement)16–18	96	97	32.0	0.04
Tophi confirmed16–18	30	99	30.0	0.71