Table 2

Age and sex specific incidence rates (IR/100 000 population)

Female patientsMale patients
Age bandNo. of patients with  inflammatory oligo- and polyarthritis2010 criteria at baseline1987 criteria cumulative to 5 years follow up2010 criteria at baseline1987 crtieria cumulative to 5 years follow up
IR (95% CI)IR (95% CI)IR (95% CI)IR (95% CI)
15–241718.6 (6.8 to 40.6)15.5 (5.0 to 36.3)0 (0 to 11.1)6 (0.7 to 21.7)
25–342320.3 (8.2 to 41.8)31.9 (15.9 to 57.0)5.6 (0.7 to 20.3)8.4 (1.7 to 24.6)
35–443456.6 (34.1 to 88.4)56.6 (34.1 to 88.4)12.1 (3.3 to 30.9)12.1 (3.3 to 30.9)
45–545385.6 (56.4 to 124.6)98.3 (66.8 to 139.5)34.5 (17.2 to 61.7)31.4 (15.0 to 57.7)
55–645891.8 (59.4 to 135.5)91.8 (59.4 to 135.5)42.1 (21.0 to 75.3)42.1 (21.0 to 75.3)
65–745387.1 (55.8 to 129.6)94.4 (61.7 to 138.3)58.3 (31.9 to 97.8)66.6 (38.1 to 108.2)
75+2226.1 (10.5 to 53.7)29.8 (12.9 to 58.7)44.3 (17.8 to 91.3)57.0 (26.1 to 108.1)
Total26053.9 (44.5 to 64.7)58.5 (48.7 to 69.8)24.5 (18.1 to 32.4)27.5 (20.7 to 35.8)