Improving patient flow of people with rheumatoid arthritis has the potential to simultaneously improve health outcomes and reduce direct costs

Table 3 Probability of Inflammatory Arthritis, of diagnosis after symptom onset by time point, of correct diagnosis by physician group

	P	Reference
Probability of Inflammatory Arthritis
Probability of a patient presenting with IA (RA or other IA)	0.6438	[10]
Diagnostic Probabilities
Probability of RA diagnosis within 3 months	0.28	[15]
Probability of RA diagnosis within 4 to 6 months	0.16	[15].
Probability of RA diagnosis within 7 to 12 months	0.14	[15].
Probability of RA diagnosis within 13 to 24 months	0.17	[15]
Probabilities of Diagnostic Skill
Probability of correct diagnosis by GP	0.15	[15]
Probability of correct diagnosis by specialist	0.73	[15]
Probability of correct diagnosis by specialist	0.76	[10]

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