Variable | RA group | Non-RA group | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Both sexes | Female | Male | Both sexes | Female | Male | |||||||
RA, rheumatoid arthritis. | ||||||||||||
No of individuals | 91 | 73 | 18 | 16 028 | 9 856 | 6 172 | ||||||
No of death | 83 | 65 | 18 | 8 527 | 4 623 | 3 904 | ||||||
Person years | 1624 | 1391 | 233 | 443 945 | 292 018 | 156 927 | ||||||
Mean follow up period | 17.8 | 19.1 | 12.9 | 28.0 | 29.6 | 25.4 | ||||||
Death rate (/1000 person years) | 51.1 | 46.7 | 77.4 | 19.0 | 15.8 | 24.9 |