Table 3.
Physician-diagnosed Active Asthma among CRS Participants by Lung Function Trajectory Class
| Survey Age (yr) | N | Low Trajectory [% (n/N)] | Normal Trajectory [% (n/N)] | P Value |
|---|---|---|---|---|
| 6 | 589 | 26.4 (14/53) | 7.7 (41/536) | <0.001 |
| 11 | 585 | 39.6 (21/53) | 15.2 (81/532) | <0.001 |
| 16 | 540 | 30.8 (16/52) | 18.0 (88/488) | 0.027 |
| 22 | 542 | 41.8 (23/55) | 16.8 (82/487) | <0.001 |
| 26 | 499 | 40.4 (21/52) | 17.7 (79/447) | <0.001 |
| 32 | 429 | 43.9 (18/41) | 16.2 (63/388) | <0.001 |
Definition of Abbreviation: CRS = Tucson Children’s Respiratory Study.
Active asthma was ascertained by written questionnaire completed by the participant and/or their parent and was defined by a history of physician diagnosis of asthma and active wheeze during prior year.