. Author manuscript; available in PMC: 2009 Jul 29.

Published in final edited form as: J Rheumatol. 2009 Jan 22;36(2):361–367. doi: 10.3899/jrheum.080691

Table 3.

Time trends in annual incidence (per 100,000) of psoriatic arthritis (PsA) between 1/1/1970-12/31/1999 in Olmsted County, Minnesota^*

Time period	Male		Female		Total
Time period	No.	Rate	No.	Rate	No.	Rate
1970-1979	12	4.4 (1.9, 7.0)	8	2.6 (0.7, 4.5)	20	3.6 (2.0, 5.2)
1980-1989	28	9.2 (5.6, 12.9)	18	5.0 (2.6, 7.4)	46	7.0 (4.9, 9.1)
1990-1999	50	11.8 (8.5, 15.1)	31	7.6 (4.9, 10.3)	81	9.8 (7.6, 11.9)

PsA classified according to the CASPAR criteria.

^†

Age-adjusted to the 2000 United States white population.

^‡

Age- and sex-adjusted to the 2000 United States white population.