
Asthma (n = 23)

Controls (n = 23)

Statistics^{1}


Age (years) ^{a}

50.0 [30.0  56.0]

46 [28.0  51.0]

0.534

Height (meter) ^{a}

1.65 [1.62  1.75]

1.68 [1.62  1.75]

0.767

Weight (kg) ^{a}

73.0 [63.0  84.0]

70.0 [61.0  75.0]

0.347

BMI (kg/m2) ^{a}

26.5 [22.5  27.7]

23.4 [21.7  26.1]

0.173

Male ^{b}

12 (52.2)

7 (30.4)

0.134

Smoking ^{b}
  
1.0

Exsmoker

4 (17.4)

4 (17.4)
 
Smoker

6 (26.1)

6 (26.1)
 
Nonsmoker

13 (56.5)

13 (56.5)
 
TLC (obs/pred) ^{a,c}

106.4 [100.6  116.0]

108.6 [100.2  112.6]

0.859

SVC (obs/pred) ^{a,c}

90.5 [81.0  95.4]

106.6 [100.4  119.2]

< 0.001

FEV_{1} (obs/pred) ^{a,c}

56.5 [50.3  73.7]

107.1 [100.8  115.6]

< 0.001

FEV_{1}/SVC (obs/pred) ^{a,c}

69.4 [57.2  77.9]

102.8 [96.7  105.9]

< 0.001

MMEF (obs/pred) ^{a,c}

23.4 [14.5  38.5]

95.7 [79.2  107.6]

< 0.001

TLCO (obs/pred) ^{a,c}

78.5 [68.5  94.0]

90.0 [81.0  103.5]

0.102

Total expired volume (L) ^{a}

204 [200  250]

205 [200  225]

0.629^{2}

Total volume of EBC (mL) ^{a}

4.00 [3.50  5.00]

4.00 [3.75  4.50]

0.787^{2}

Time (min) ^{a}

20 [16  25]

20 [18  24]

0.911^{2}

 BMI: body mass index, TLC: total lung capacity, SVC: slow vital capacity, FEV_{1}: forced expiratory volume in 1s, MMEF: Maximum midexpiratory flow, TLCO: carbon monoxide gas transfer
 ^{a} data expressed as median [IQR]
 ^{b} data expressed as n (%)
 ^{c} data expressed as % of predicted values
 ^{1} p(Chi2)
 ^{2} ANOVA on the ranks