Incidence of hospitalisations due to chickenpox in population aged 18 years exposed and not exposed to TNF antagonists
| Cases | Person-years | Incidence rate per 100 000 (95% CI) | SIR per 100 000 (95% CI) | SIR (95% CI) | |
|---|---|---|---|---|---|
| BIOBADASER 2.0 | |||||
| All rheumatic diseases exposed to TNF antagonist | 4 | 15395 | 26 (10 to 69) | 35 (9 to 91) | 19 (5 to 47) |
| Rheumatoid arthritis exposed to TNF antagonist | 0 | 9066 | |||
| CMBD (expected) | 2163 | 114279124 | 1.9 (1.8 to 2.0) | 1.9 (1.8 to 2.0) | |
BIOBADASER, Registro Español de Acontecimientos Adversos de Terapias Biológicas en Enfermedades Reumáticas; CMBD, Conjunto Mínimo Básico de Datos al Alta Hospitalaria (Hospital Discharge Database); SIR, standardised incidence ratio; TNF, tumour necrosis factor.