Table 2.

Excess healthcare outpatient cost related to GCA (inflation-adjusted to 2014 US dollars)^*.

Time from Incidence Date, Yrs	No. GCA/non-GCA Pairs	Median Difference (interquartile range)	Mean Difference (± SD)^**	p^*
−1 to 0	127	722 (−1144 to 2772)	756 (342)	0.01
0–1	133	2085 (571–4530)	2432 (412)	< 0.001
1–2	120	437 (−1365 to 3721)	1182 (370)	0.009
2–3	110	382 (−801 to 2615)	998 (361)	0.007
3–4	99	388 (−923 to 2997)	797 (365)	0.04
4–5	97	577 (−1488 to 2893)	493 (431)	0.11

↵* Signed-rank paired test.
↵** Because of cost variability, trimmed means were used to reduce effect of extreme outliers on estimated means. GCA: giant cell arteritis.