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Table 2 Characteristics of subjects

From: Functional classes of bronchial mucosa genes that are differentially expressed in asthma

Control subjects
Age Sex FVC* 1(%) FEV1* 1(%) PC20 mg/ml † Allergy‡
(1) 21 F 3.33 (97) 2.73 (91) 70.9 None
(2) 20 M 6.02 (107) 5.10 (105) >128 None
(3) 20 M 5.52 (98) 4.43 (101) 53.3 None
(4) 29 F 2.84 (80) 2.59 (86) 61.1 None
Asthmatic subjects
(1) 21 F 3.60 (91) 3.25 (96) 6.12 C, D, DPt, Du, G, Rw, T
(2) 20 F 3.50 (99) 2.80 (90) 2.53 C, D, DPt, G, Du, Rw, T
(3) 23 F 3.84 (100) 3.07 (96) 1.01 C, D, G, DPt, T
(4) 39 F 3.96 (112) 3.21 (110) 2.23 C, Du, G, Rw, T
  1. * Forced vital capacity (FVC) and pre-bronchodilator forced expiratory volume in one second (FEV1) expressed in liter and (%) of predicted. † Concentration of methacholine inducing a 20% fall in FEV1. ‡ Skin response read at 10 min if mean wheal diameter ≥ 3 mm; C: cat, D: dog, DPt: D. Pteronyssinus, Du: dust, G: grass pollens, M: mold, Rw: ragweed, T: tree pollens. A wheal response to histamine ≥ 3 mm served as a positive control.