The purpose of this study was to determine the total and cause-specific mor
tality in rheumatoid arthritis (PA) patients compared to a control populati
on in northern Norway. One hundred and eighty-seven patients with RA and 93
0 population controls matched for age, gender and municipality were followe
d until death or for a maximum of 17 years. The total mortality in Rh patie
nts was twice that of their controls (MRR = 2.0, 95% CI = 1.6-2.5). Patient
s possessing serum rheumatoid factors did not have a higher relative mortal
ity than the seronegative patients. There was no statistically significant
increased mortality from cancer or cardiovascular diseases. Indications for
a higher death rate in RA patients than in controls were found for infecti
on and sudden death.