Table 4.

Factors associated with time to diagnosis of vasculitis

Factors	Coefficient (95% CI)	p value
Patient-related factors
Time to travel to healthcare site > 1 h	2.6 (0.6–4.5)	< 0.01
Patient location (North America)	1.2 (− 2.0–3.8)	0.76
Single or divorced or widowed	1.1 (− 1.0–3.2)	0.29
Household income > $50,000/year	− 1.5 (− 4.2–0.6)	0.18
Female	− 1.5 (− 4.0–0.5)	0.15
Caucasian race	− 1.5 (− 6.0–3.0)	0.54
Charlson score > 1	− 1.5 (− 3.9–0.4)	0.12
Employed	− 2.4 (− 4.0–− 0.4)	0.02
Healthcare-related factors
Time to see a specialist > 1 month	2.4 (0.3–4.6)	0.03
Misdiagnosis	2.3 (0.1–4.5)	0.03
Laboratory studies ordered initially	0.2 (− 1.6–2.0)	0.80
Referral delays due to insurance	− 0.3 (− 2.5–2.5)	0.98
Specialist involved initially	− 1.3 (− 3.1–0.6)	0.18

The table reports on the results of a multivariate analysis. A positive coefficient indicates a longer time to diagnosis and a negative one indicates a shorter time to diagnosis

CI: confidence interval; $: US dollars