Table 4 Incidence rate and incidence rate ratio of COVID-19 diagnosis
IR and IRR of COVID diagnosis by Group of Surgery | ||||||||
|---|---|---|---|---|---|---|---|---|
person-time | Failures | IR (1000 person-day) | Poisson-Exact (95% Conf. Interval) | IRR | Exact (95% CI) | |||
Small Joints (soft tiss./arthros.) | 2254 | 8 | 3.55 | 1.53 | 6.99 | 1 | . | . |
Small Joints (bone or arthrop.) | 2984 | 7 | 2.35 | 0.94 | 4.83 | 0.66 | 0.24 | 1.82 |
Big Joints (soft tiss./arthros.) | 1031 | 0 | 0 | 0 | 3.58a | 0 | ||
Big Joints (bone or arthrop.) | 3469 | 11 | 3.17 | 1.58 | 5.67 | 0.89 | 0.36 | 2.22 |
Total | 9738 | 26 | 2.67 | 1.74 | 3.91 | |||