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Table 1 Characteristics of the subjects studied

From: Cough and dyspnea during bronchoconstriction: comparison of different stimuli

Subject Gender Age
(years)
BMI FEV1
(L)
FEV1
(%)
Tests sequence PC20 MCh (mg/ml) PC20 BK (mg/ml)
1 M 23 23.8 3.24 76 BK, EIB, MCh 0.83 2.30
2 M 23 24.2 3.56 83 EIB, BK, MCh 0.21 0.15
3 M 21 24.0 2.98 69 BK, EIB, MCh 0.19 1.16
4 F 30 19.1 3.44 110 MCh, EIB, BK 1.13 3.87
5 F 43 24.8 2.55 83 EIB, MCh, BK 0.56 0.42
6 F 23 25.8 2.26 68 MCh, BK, EIB 0.13 0.58
7 F 45 25.7 2.13 80 EIB, BK, MCh 0.47 1.62
8 F 39 27.9 1.66 54 MCh, BK, EIB 0.14 0.12
9 F 24 33.6 2.81 87 BK, MCh, EIB 0.16 1.17
10 F 38 31.2 2.56 88 BK, MCh, EIB 1.00 0.22
11 M 39 22.1 2.90 74 EIB, MCh, BK 0.62 0.06
12 F 24 32.7 3.16 91 MCh, EIB, BK 0.17 1.16
13 M 24 19.2 3.73 90 EIB, MCh, BK 0.42 1.48
14 M 27 31.8 3.26 77 MCh, BK, EIB 0.28 2.37
15 M 46 26.8 3.29 83 EIB, BK, MCh 0.38 0.71
16 M 33 23.1 3.21 73 BK, MCh, EIB 2.35 2.32
17 F 24 19.6 2.57 80 MCh, EIB, BK 0.95 3.56
18 F 26 21.8 2.30 80 MCh, EIB, BK 0.15 0.20
19 M 38 24.6 2.25 64 BK, MCh, EIB 0.08 0.05
20 M 32 28.7 3.00 80 MCh, BK, EIB 0.58 1.73
Mean   31 25.5 2.84 79.5   0.36a 0.68a
SD   8 4.4 0.54 11.6   2.45b 3.84b
  1. M: male; F: female; BMI: body mass index; FEV1: Forced expiratory volume in one second; MCh: methacoline; BK: bradykinin; EIB: exercise-induced bronchospasm; PC20: provocative concentration that results in a 20% fall in FEV1.
  2. a geometric mean. b geometric standard deviation.