Table 3 Overall and according to the year after diagnosis serious infection incidence rates
| Overall | 1st year | 2nd year | 3rd year | > 4th year | |
|---|---|---|---|---|---|
| n of events* | 67 | 28 | 8 | 6 | 24 |
| % | 100% | 42% | 12% | 9% | 36% |
| Patient-years | 891.2 | 150.77 | 128.38 | 105.65 | 506.08 |
| Incidence rate (per 100 patient-years) | 7.5 | 18.57 | 6.23 | 5.67 | 4.74 |
| Incidence rate ratio (95% CI) | NA | 3.91 (2.26–6.81) | 1.31 (0.55–2.85) | 1.20 (0.44–2.82) | ref |