The impact of rheumatologist-performed ultrasound on diagnosis and management of inflammatory arthritis in routine clinical practice

Table 3 Time (months) from initial clinic visit to diagnosis and treatment initiation (i.e. starting DMARDS)

	Time (months) to formal diagnosis				Time (months) to treatment initiation with DMARDS
	US	Non-US	RA US	RA Non-US	US	Non-US	RA US	RA Non-US
Total	123	117	56	58	73	77	56	58
Mean	2.18	2.76	1.18	1.94	1.49	2.29	1.10	2.38
Median	0.85	2.00	0.23	1.38	0.62	1.41	0.46	1.81
SD	3.02	2.74	2.09	1.90	2.31	2.44	1.65	2.34
IQR	0.0 to 3.22	0.49 to 4.14	0.0 to 1.25	0.46 to 3.15	0.0 to 1.74	0.46 to 3.25	0.0 to 1.38	0.51 to 3.42
P value (Mann-Whitney U)	0.0046		0.0016		0.0048		0.0007

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