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Table 1 Baseline characteristics of subjects from the Childhood Asthma Management Program (CAMP)

From: The CD4+ T-cell transcriptome and serum IgE in asthma: IL17RB and the role of sex

Variable Median (interquartile range) or Count (%)
  All (n = 223) Males (n = 134) Females (n = 89)
Age, years 20 (19-22) 20 (19-22) 21 (19-23)
Sex, female 89 (40%) - -
Ethnicity, white 168 (75%) 97 (72%) 71 (80%)
African-American 42 (18%) 26 (19%) 16 (18%)
Hispanic 13 (6%) 11 (8%) 2 (2%)
Total serum IgE (IU/ml) 356 (145-924) 480 (150-1172) 253 (133-597)
Atopy * 200 (90%) 122 (91%) 78 (88%)
Allergen Specific Skin Tests *‡    
Dust Mites    
Dermatophagoides farinae 97 (44%) 61 (46%) 36 (40%)
   Dermatophagoides pternohyssinus 92 (41%) 58 (43%) 34 (38%)
Cockroaches    
Blattella germanica 66 (30%) 41 (31%) 25 (28%)
Periplaneta Americana 56 (25%) 36 (27%) 20 (22%)
Atopic dermatitis *ठ48 (22%) 72 (43%) 15 (31%)
Allergic rhinitis *ठ92 (42%) 56 (43%) 33 (35%)
FEV1 (liters) ‡ 3.65 (3.13-4.19) 4.04 (3.65-4.48) 3.13 (2.86-4.48)
FEV1/FVC (%) ‡ 78 (72-83) 76 (71-82) 79 (75-84)
PC20 (mg/ml) ‡ 2.49 (1.64-4.88) 3.01 (1.88-4.88) 1.95 (1.37-4.53)
Used Inhaled Corticosteroids ‡║ 50 (25%) 24 (21%) 26 (31%)
Used Oral Prednisone ‡║ 12 (6%) 1 (1%) 11 (13%)
  1. * Data on these atopy variables was recorded at enrollment into the CAMP trial (~10-12 years prior to both the gene expression and total serum IgE measurement).
  2. Atopy defined as subjects with at least one positive allergen skin test.
  3. ‡ Data missing for skin test positive responses to Blattella Germanica in 1 subject, atopic dermatitis FEV1 and FEV1/FVC ratio in 9 subjects, for inhaled corticosteroids or oral prednisone in 23 subjects, and PC20 in 34 subjects.
  4. § Atopic dermatitis and allergic rhinitis were defined by physician diagnosis.
  5. ║ Refers to subjects who used these medications within 7 days of both the gene expression and total serum IgE measurement.