Distribution of pneumonia hospitalisation incidence rate in elderly long-term cancer survivors with and without PPSV23
| No. of pneumonia hospitalisations per PY (%) | |||||
| 0 | >0–1 | >1–2 | >2–3 | >3 | |
| Patients with PPSV23 | 341 (90.45) | 25 (6.63) | 7 (1.86) | 3 (0.80) | 1 (0.27) |
| Patients without PPSV23 | 649 (86.07) | 70 (9.28) | 19 (2.52) | 12 (1.59) | 4 (0.53) |
| Total | 990 (87.53) | 95 (8.40) | 26 (2.30) | 15 (1.33) | 5 (0.44) |
PPSV23, 23-valent pneumococcal polysaccharide vaccine; PY, person-year.