Table 2

Regional incidence rates and total incidence of rheumatoid arthritis in the study area in Finland in 1995. The figures are age adjusted to the Finnish adult population in 1990

Area All incidence
(95% CI)
No of cases Men incidence
(95% CI)
No of cases Women incidence
(95% CI)
No of cases
Vaasa16.3 (9.8 to 24.3) 21 9.4 (3.4 to 20.3)  623.2 (13.5 to 38.2) 15
Seinäjoki28.9 (21.3 to 38.9) 4720.0 (10.9 to 32.2) 1538.7 (26.0 to 54.3) 32
Tampere26.6 (21.5 to 32.5) 9725.1 (17.9 to 33.6) 3730.6 (23.3 to 39.9) 60
Hämeenlinna34.3 (24.8 to 45.4) 4821.3 (12.1 to 37.1) 1346.0 (31.7 to 65.4) 35
Jyväskylä43.1 (34.4 to 52.9) 9130.0 (20.3 to 42.9) 2954.5 (41.9 to 70.3) 62
Lahti27.9 (20.6 to 37.3) 4812.5 (6.0 to 23.1) 1041.7 (29.7 to 58.2) 38
Kuopio36.3 (28.7 to 45.7) 7925.1 (16.2 to 36.9) 2844.2 (32.6 to 59.0) 51
Mikkeli29.9 (19.9 to 44.0) 3028.2 (14.4 to 48.6) 1431.7 (18.2 to 53.6) 16
Kotka31.1 (23.1 to 41.5) 5124.3 (14.3 to 38.2) 1935.9 (23.6 to 51.3) 32
Joensuu44.8 (34.6 to 57.3) 6832.5 (20.8 to 49.3) 2356.1 (40.5 to 76.7) 45
Savonlinna28.6 (16.0 to 45.5) 1815.4 (3.9 to 36.8)  539.8 (21.1 to 71.4) 13
Total31.7 (29.2 to 34.4)59823.2 (20.2 to 26.7)19940.0 (36.0 to 44.2)399