Table 1 Subject demographics used with principal component scores to determine main drivers of variation in data

Gender: Male

7 [44%]^†

Age, years

28.7 ± 6.7 [19.2-46.5]

Ethnicity

 Asian

2 [13%]^†

 Caucasian

12 [75%]^†

 Middle Eastern

1 [6%]^†

 South Asian

1 [6%]^†

Height, cm

170.0 ± 12.2 [151.0-185.5]

Mass, kg

71.9 ± 15.5 [53.0-104.6]

BMI, kg/m²

24.8 ± 3.9 [19.8-34.7]

FEV1, % predicted

90.3 ± 14.1 [66.0-120.0]

Atopy: atopic

9 [56%]

Asthma diagnosis: yes

12 [75%]

Methacholine-responsive: yes

15 [94%]

GSTP1: G allele

11 [69%]

Lymphocytes, K/μL

1.9 ± 0.5 [1.2-2.6]

Monocytes, K/μL

0.43 ± 0.13 [0.20-0.70]

Basophils, K/μL

0.03 ± 0.05 [0.00-0.10]