Table 1.

Characteristics of 147 subjects with psoriatic arthritis* between January 1, 1970, and December 31, 1999, in Olmsted County, Minnesota.

Period
1970–19791980–19891990–1999Total
Total no. (%) of subjects204681147
  Male12 (60)28 (61)50 (62)90 (61)
  Female8 (40)18 (39)31 (38)57 (39)
Age at incidence, mean (± SD) yrs44.1 ± 18.343.6 ± 17.841.8 ± 12.842.7 ± 15.2
  Male42.8 ± 15.744.3 ± 18.439.9 ± 10.141.7 ± 13.9
  Female46.0 ± 22.742.6 ± 17.444.8 ± 15.944.3 ± 17.1
  • * According to the CASPAR criteria. SD: standard deviation.