Figure 1From: Infections requiring hospitalization in the abatacept clinical development program: an epidemiological assessmentStandardized incidence ratios (SIR) comparing the risk of hospitalized infections (A) and pneumonia (B) in abatacept CDP and RA cohorts. Expected events are age-adjusted (10-year age groups) and gender-adjusted and account for exposure. Data reflect all patients in clinical trials treated with abatacept through December 2006. Overall SIRs were derived through a meta-analysis of SIRs using individual cohorts.Back to article page