From: African ancestry is associated with cluster-based childhood asthma subphenotypes
 | CAMP (N = 813) | CARE(N = 398) | p-value |
---|---|---|---|
Age, Mean (SD), years | 8.9 (2.1) | 10.6 (2.8) | < 0.0001 |
Gender, No. (%) | Â | Â | 0.8152 |
 Male | 500 (61.5) | 242 (60.8) |  |
 Female | 313 (38.5) | 156 (39.2) |  |
Race, No. (%) |  |  | < 0.0001 |
 Caucasian | 557 (68.5) | 215 (54) |  |
 African American | 107 (13.2) | 70 (17.6) |  |
 Hispanic | 77 (9.5) | 78 (19.6) |  |
 Other | 72 (8.9) | 35 (8.8) |  |
BMIZ at baseline, Mean (SD) | 0.5 (1.0) | 0.8 (1.0) | < 0.0001 |
Age of onseta, Mean (SD), years | 3.0 (2.4) | 3.7 (3.3) | < 0.0001 |
FEV1 PC20 methb, Mean (SD), mg/ml | 2.0 (2.4) | 2.2 (3.1) | 0.3602 |
FEV1 percent predictedc, Mean (SD) | 93.4 (14.1) | 97.1 (12.8) | < 0.0001 |
FVC percent predictedd, Mean (SD) | 103.7 (13.1) | 106.7 (12.2) | 0.0002 |
FEV1/FVC ratioe, Mean (SD) | 79.6 (8.3) | 80.1 (8.0) | 0.2937 |
Bronchodilator percent changef, Mean (SD) | 10.7 (9.9) | 9.4 (8.4) | 0.0236 |
Blood eosinophils, Mean (SD), mm3 | 485.7 (409.2) | 408.8 (319.5) | 0.0011 |
IgE, Mean (SD), ng/ml | 1129.8 (2081.9) | 330.6 (445.4) | < 0.0001 |
Average AM peak flowg, Mean (SD), L/min | 250.9 (64.4) | 271.1 (92.4) | < 0.0001 |
Average AM symptomsh, Mean (SD) | 0.61 (0.45) | 0.51 (0.40) | < 0.0001 |
Environmental smokei, No. (%) | 339 (41.7) | 166 (41.7) | 0.0256 |
In utero smokej, No. (%) | 107 (13.2) | 54 (13.6) | 0.8060 |
Atopic dermatitisk, No. (%) | 199 (24.4) | 155 (38.9) | < 0.0001 |
One or more positive SPTl, No. (%) | 716 (88.1) | 312 (78.4) | 0.0002 |