Skip to main content

Table 3 Mean ± SD and 95% confidence interval (shown in [ ]) of each pulmonary function variable (absolute and/or percentage predicted values: % predicted) for Huntington’s disease patients (HD) and healthy volunteers (Control)

From: Pulmonary function in patients with Huntington’s Disease

 

HD

Control

p

MIP (cm H2O)

72.6 ± 30 [57.7 – 87.6]

110.1 ± 28.8 [95.8 – 124.4]

0.000

MEP (cm H2O)

106.2 ± 37 [87.8 – 124.5]

147.9 ± 38.4 [128.8 – 167.0]

0.001

IC (L) % predicted

2.7 ± 0.8 [2.3 – 3.1]

3.2 ± 0.8 [2.8 – 3.6]

0.063

97.0 ± 24.9 [84.7 – 109.4]

112.3 ± 14.2 [105.2 – 119.4]

0.015

SVC (L) % predicted

3.8 ± 1 [3.3 – 4.4]

4.0 ± 1 [3.6 – 4.6]

0.237

92.2 ± 23.6 [80.4 – 103.9]

97.4 ± 11.4 [91.7 – 103.0]

0.203

FVC (L) % predicted

3.1 ± 1.0 [2.6 – 3.6]

3.9 ± 1.0 [3.4 – 4.5]

0.008

72.8 ± 17.4 [64.2 – 81.5]

93.4 ± 13.4 [86.7 – 100.0]

0.000

FEV1 (L/s) % predicted

2.6 ± 0.74 [2.2 – 3.0]

3.0 ± 0.72[2.7 – 3.3]

0.066

80.6 ± 16.8 [72.2 – 89.0]

92.4 ± 12.6 [86.1 – 98.6]

0.011

FEV1/FVC

87 ± 7.4 [83.3 – 90.7]

77 ± 8.1 [73.3 – 81.4]

0.000

PEF (L/s) % predicted

5.9 ± 2.0 [4.9 – 6.9]

7.3 ± 1.9 [6.3 – 8.2]

0.024

64.7 ± 18.4 [55.5 – 73.8]

81.1 ± 18.9 [71.7 – 90.5]

0.006

MVV (L/min) % predicted

103.9 ± 43.0 [82.6 – 125.3]

142 ± 36.6 [124.7 – 161.1]

0.003

 

82.6 ± 27.3 [69.0 – 96.1]

117.1 ± 15.0 [109.5 – 124.5]

0.000

  1. MIP: Maximum inspiratory pressure, MEP: Maximum expiratory pressure, IC: Inspiratory capacity, SVC: Slow vital capacity, FVC: Forced vital capacity, FEV 1 : Forced expiratory volume in 1 second, PEF: Peak expiratory flow, MVV: Maximum voluntary ventilation.
  2. p values as the results of the t-tests to compare between groups are included.