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

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 B...

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Bibliographic Details
Main Authors: Gran, J T, Husby, G, Hordvik, M
Format: Text
Language:English
Published: 1985
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1001653
http://www.ncbi.nlm.nih.gov/pubmed/3160312
Description
Summary: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.