Table 2.
Point prevalence of definite and probable Pneumocystis pneumonia according to the number of cycles of R-CHOP chemotherapy
| Category | Cycle number of R-CHOP | No. of patients on each cycle of R-CHOP | No. of patients censored before the cycle | Number of patients with PCP | Point prevalence | |
|---|---|---|---|---|---|---|
| Per 1000 persons | 95 % confidence interval | |||||
| Definite only (N = 14) | 1 | 713 | 1 | 1.40 | 0.20–9.96 | |
| 2 | 670 | 43 | 1 | 1.49 | 0.21–10.60 | |
| 3 | 649 | 21 | 0 | 0 | Not applicable | |
| 4 | 578 | 71 | 3 | 5.19 | 1.67–16.10 | |
| 5 | 493 | 85 | 5 | 10.14 | 4.22–23.47 | |
| ≥ 6 | 456* | 37 | 4 | 8.93 | 3.35–24.79 | |
| Definite & probable (N = 32) | 1 | 713 | 1 | 1.40 | 0.20–9.96 | |
| 2 | 670 | 43 | 6 | 8.96 | 4.02–19.93 | |
| 3 | 646 | 24 | 3 | 4.64 | 1.50–14.40 | |
| 4 | 575 | 71 | 8 | 13.91 | 6.96–27.82 | |
| 5 | 490 | 85 | 6 | 12.24 | 5.50–27.26 | |
| ≥ 6 | 453† | 37 | 8 | 17.66 | 8.83–35.31 | |
* Of 456 patients, 371, 11, and 74 patients received 6, 7, and 8 cycles of R-CHOP, respectively. † Of 453 patients, 368, 11, and 74 patients received 6, 7, and 8 cycles of R-CHOP, respectively. Abbreviations: PCP: Pneumocystis pneumonia