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. Author manuscript; available in PMC: 2016 Aug 1.

Published in final edited form as: Semin Arthritis Rheum. 2015 Mar 3;45(1):70–74. doi: 10.1016/j.semarthrit.2015.02.010

Table 1.

^a. Rate of Hospitalization for Patients with Giant Cell Arteritis (GCA) and Patients without GCA

		GCA Rate^b	Non-GCA Rate^b	Rate Ratio (95% CI)
Overall		49.7	44.1	1.13 (1.02, 1.25)
Sex	Female	47.2	42.5	1.11 (0.99, 1.25)
	Male	60.7	51.0	1.19 (0.96, 1.47)
Ages	50–64	15.6	16.6	0.95 (0.35, 2.42)
	65–84	45.2	40.9	1.10 (0.97, 1.26)
	85+	58.9	52.5	1.12 (0.96, 1.30)
Calendar Years	1987–1991	67.1	53.1	1.26 (1.02, 1.56)
	1992–1996	55.7	49.2	1.13 (0.90, 1.42)
	1997–2001	47.4	40.2	1.18 (0.93, 1.50)
	2002–2006	46.6	50.0	0.93 (0.75, 1.16)
	2007–2012	39.5	33.1	1.19 (0.96, 1.48)
Years After GCA Diagnosis	0–4	43.5	48.1	0.90 (0.77, 1.06)
	5–9	43.7	41.8	1.04 (0.85, 1.27)
	10–14	55.7	43.6	1.27 (1.00, 1.61)
	15–19	69.6	39.0	1.78 (1.31, 2.45)
	20+	91.6	41.6	2.21 (1.51, 3.21)

^a

Statistically significant results are presented in bold font.

^b

Rate of hospitalizations per 100 person-years.