Prevalence of ankylosing spondylitis in males and females in a young middle-aged population of Tromsø, northern Norway

Ann Rheum Dis. 1985 Jun;44(6):359-67. doi: 10.1136/ard.44.6.359.

Abstract

In an epidemiological survey in Tromsø, northern Norway a prevalence of definite ankylosing spondylitis (AS) of between 1.1% and 1.4% was found (males: 1.9-2.2% and females: 0.3-0.6%). The ratio of male to female was between 3.9 and 6.1 in favour of the male sex. It was calculated that 6.7% of the B27 positive individuals had AS, and that 22.5% of the B27 positive subjects with back pain or stiffness suffered from AS.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Age Factors
  • Back Pain / epidemiology
  • Female
  • HLA Antigens / analysis
  • HLA-B27 Antigen
  • Humans
  • Male
  • Middle Aged
  • Norway
  • Radiography
  • Sacroiliac Joint / diagnostic imaging
  • Sex Factors
  • Spondylitis, Ankylosing / diagnostic imaging
  • Spondylitis, Ankylosing / epidemiology*
  • Spondylitis, Ankylosing / immunology

Substances

  • HLA Antigens
  • HLA-B27 Antigen