Which is true regarding rheumatoid arthritis -
Small and large joints are affected mostly
Younger females are affected more commonly
Diagnosed only if Rheumatoid factor is positive
Life expectancy is unchanged
Small joints of hand & feet and large joints like elbow, knee and ankle are involved.
Women are affected 3 times more commonly than men. Older women (> 60 years) are 6 times more commonly involved than younger one.
A positive RA factor in the absence of other features is not sufficient evidence for RA.
Life expectancy is shortened 3-7 years.
Hepatosplenomegaly is not seen except in Felty's syndrome, where RA is associated with splenomegaly.