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Table 2 Crude incidence rate of recurrence

From: Incidence rate of recurrent cardiovascular events in patients with radiographic axial spondyloarthritis and the effect of tumor necrosis factor inhibitors

 

Events

Time to events, years,

mean ± SD

Time at risk, years,

mean ± SD

Total person-years

IR per 1,000 person-years (95% CI)

Total study population

38

1.59 ± 2.11

2.88 ± 2.57

1187

32 (22–42)

TNFi non-exposure

33

1.54 ± 2.20

2.71 ± 2.46

917

36 (24–48)

TNFi exposure

5

1.93 ± 1.46

3.60 ± 2.92

270

19 (2–35)

  1. CI, confidence interval; IR, incidence rate; SD, standard deviation; TNFi, tumor necrosis factor inhibitors