Table 1.
Standard asthma care model: asthma specialty clinic separate from sickle cell clinic (2010–2012) | Integrated sickle cell and asthma clinic (2013–2014) | |
---|---|---|
Number and location of initiation of asthma action plans for new diagnoses | ||
Asthma clinic (n=16) | 4 (44%) | 0 |
Sickle cell clinic (n=16) | 5 (56%) | 16 (100%)* |
Spirometry utilization | ||
Participants ≥5 years of age (n=41) | 27 (65%) | 39 (95%)** |
Correction of lower airway obstruction after therapy | ||
FEV1/FVC <5th percentile (n=10for both groups) | 3 (30%) | 8 (80%)* |
Asthma exacerbations | ||
Emergency department and hospital encounters per 100 patient-years | 9.29 | 6.56 |
Systemic corticosteroids administered | 18 | 11 |
Hospitalizations for vaso-occlusive pain per 100 patient-years | ||
Entire cohort | 51 | 62 |
Hemoglobin SS and sickle beta thalassemia null | 54.6 | 48.9 |
Hemoglobin SC and sickle beta thalassemia + | 28.6 | 92.9* |
Hospitalizations for acute chest syndrome per 100 patient-years | ||
Entire cohort | 24 | 20 |
Hemoglobin SS and sickle beta thalassemia null | 21.3 | 26.6 |
Hemoglobin SC and sickle beta thalassemia + | 26.2 | 17.9 |
Note: Boldface indicates statistical significance (*p<0.05; **p<0.01).
FEV1/FVC, the ratio of forced expiratory volume in 1 second to forced vital capacity.