TABLE I.
Demographic and Morbidity Data for Total Cohort and Subgroup with Repeat Pulmonary Function Tests (PFT)
| Cohort | Total | ≥2 PFTs |
|---|---|---|
| No. Patients | 92 | 49 |
| Gender, % | ||
| Male | 48 | 43 |
| Age last PFT, mean, y ± SD | 36.2 ± 10.6 | 37.1 ± 9.2 |
| Follow-up, mean, y ± SD | 13.3 ± 10.2 | 13.5 ± 9.1 |
| Phenotype, % | ||
| SS | 72 | 80 |
| SC | 16 | 12 |
| Sβ-thalassemia0 | 2 | 2 |
| Sβ-thalassemia+ | 7 | 4 |
| SHPFH | 2 | 2 |
| SD | 1 | 0 |
| Smoked cigarettes, % | 23 | 20 |
| Pain admissions, no. #/year ± SD | 0.9 ± 0.9 | 1.0 ± 0.9 |
| ACS admissions, no. #/year ± SD | 0.4 ± 1.3 | 0.2 ± 0.3 |
| History of asthma, % | 13 | 22 |
SHPFH, S-hereditary persistence of fetal hemoglobin; ACS, acute chest syndrome.