Table 2.
Number of Cystic Fibrosis Pulmonary Exacerbations Among Patients in the Cystic Fibrosis Registry From January 2003 Through March 2009 (n = 31 568)
| Parameter | Total PEx | Hospitalization | Home IV Antibiotics | Hospitalization and Home IV Antibiotics |
|---|---|---|---|---|
| PEx | ||||
| No. (%) of subjects with | ||||
| 0 events | 13130 (42) | 14089 (45) | 19449 (62) | 20761 (66) |
| ≥1 event | 18438 (58) | 17479 (55) | 12119 (38) | 10807 (34) |
| 1–2 events | 7818 (25) | 8090 (26) | 6362 (20) | 6507 (21) |
| 3–4 events | 3589 (11) | 3476 (11) | 2510 (8) | 2283 (7) |
| ≥5 events | 7031 (22) | 5913 (19) | 3247 (10) | 2017 (6) |
| No. (%) of events | ||||
| Overall | 91291 | 79054 | 43719 | 31692 |
| Age <18 y | 37169 (41) | 34731 (44) | 14504 (33) | 12214 (39) |
| Age ≥18 y | 54122 (59) | 44323 (56) | 29215 (67) | 19478 (61) |
Abbreviations: IV, intravenous; PEx, pulmonary exacerbation.