Table 2.
Quarterly incidence and comparison of PF and PBSI
| Quarter | No. of Surgeries (N) | PF Cases (n) | PF Incidence (%, 95% CI)¹ | PBSI Cases (n) | PBSI Incidence (%, 95% CI)¹ |
|---|---|---|---|---|---|
| Q1 | 4,971 | 110 | 2.21 (1.82–2.66) | 45 | 0.91 (0.66–1.21) |
| Q2 | 5,381 | 114 | 2.12 (1.75–2.54) | 61 | 1.13 (0.86–1.47) |
| Q3 | 5,248 | 168 | 3.20 (2.74–3.72) | 90 | 1.71 (1.38–2.11) |
| Q4 | 4,306 | 140 | 3.25 (2.74–3.83) | 63 | 1.46 (1.12–1.88) |
| Total | 19,906 | 532 | 2.67 (2.45–2.91) | 259 | 1.30 (1.15–1.47) |
| Overall P-value² | < 0.001 | < 0.001 |
¹ 95% Confidence Interval calculated using the Clopper-Pearson method
² Overall P-value from Chi-square test for comparison across all four quarters