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Rheumatoid factor positive in 4% of young health individuals and 3-25% of elderly.
The higher the titre, the lower the false positive rate.
Elevated inflammatory markers seen with any chronic inflammatory condition, acute inflammation / infection, obesity, cigarette smoking, low levels of physical activity, chronic fatigue.
NHS Highland PMR Info Leaflet
Last reviewed: 31 March 2015
Next review: 31 March 2018
Author(s): Consultant Rheumatologist
Approved By: email@example.com
Reviewer Name(s): Dr John Harvie