Table 6

 Standardised incidence ratios for cancers occurring in patients treated with anakinra

Site of malignancyObservedExpected*SIR95% CI
*Expected numbers of cases estimated using 1992–2000 SEER database adjusted for the age, sex, and race of cohort receiving anakinra.
†Excludes malignancies that are not included in the SEER database (basal and squamous cell carcinomas of the skin and all in situ malignancies other than those of the bladder).
‡Combines all other SEER major organ system categories.
CI, confidence interval; SIR, standardised incidence ratio, calculated as observed/expected.
All sites†1720.580.830.48 to 1.32
Oral cavity and pharynx10.442.260.06 to 13.00
Digestive system23.490.570.07 to 2.07
Respiratory system13.190.310.01 to 1.75
Malignant melanoma40.735.481.49 to 14.00
Breast34.700.640.13 to1.86
Female genital system11.850.540.01 to 3.02
Urinary system21.231.630.20 to 5.89
Lymphoma30.813.710.77 to 11.00
Other‡04.130.000.00 to 0.89