Table 2

 Deaths observed up to March 1999

VariableRA groupNon-RA group
Both sexesFemaleMaleBoth sexesFemaleMale
RA, rheumatoid arthritis.
No of individuals91731816 0289 8566 172
No of death8365188 5274 6233 904
Person years16241391233443 945292 018156 927
Mean follow up period17.819.112.928.029.625.4
Death rate (/1000 person years)51.146.777.419.015.824.9