Table 2: Percent change in pulmonary function over time in the overall cohort, chest PT and no chest PT groups.
Baseline | 3 months | 6 months | 9 months | 12 months | 18 months | 24 months | ||
n = 77 | n = 35 | n = 30 | n = 32 | n = 27 | n = 28 | n = 26 | ||
FVC % predicted | All | 91 [76,106] | 2.5 [-6.9,6.6] | 4.0 [-1.3,17.4]** | 4.7 [-5.7,15.6] | 2.4 [0.0,10.0]* | 9.2 [-8.1,18.4] | 9.6 [0.5,19.5]** |
No Chest PT | 100 [84,107] | -0.5 [-7.7,8.7] | 3.9 [-1.9,28.0] | 4.7 [-5.0,23.8] | 2.4 [0.9,9.6]* | 7.0 [-8.9,14.4] | 8.3 [0.9,23.5] | |
Chest PT | 84 [69,103] | 4.5 [-6.6,6.2] | 4.1[-1.1,16.9]* | 4.0 [-6.4,19.7] | 1.9 [-1.6,12.3] | 11.8 [-8.9,21.1] | 11.0 [-1.5,19.5]* | |
FEV1 % predicted | All | 84 [67,94] | -10.7 [-22.8,0.0] | -5.9 [-15.9,0.3] | -3.8 [-14.5,6.7] | -9.6 [-24.4,1.0] | -7.5 [-17.4,3.0] | -6.4 [-15.6,4.4] |
No Chest PT | 88 [72,96] | -11.6 [-23.8,-5.5] | -10.6 [-19.2,-1.2] | -13.7 [-21.4,10.7] | -9.8 [-25.8,1.0] | -7.5 [-21.3,1.8] | -7.0 [-12.4,-0.4] | |
Chest PT | 80 [65,92] | -10.6 [-22.5,5.9] | -5.8 [-15.6,1.1] | -7.8 [-14.2,6.7] | -6.9 [-23.6,1.6] | -5.5 [-16.8,6.6] | -3.5 [-16.3,8.0] | |
FEV1/FVC % | All | 71 [64,77] | -25.0 [-36.4,0.0] | -21.1 [-36.0,-6.3] | -26.0 [-37.7,-6.2] | -24.3 [-30.8,-11.6] | -25.8 [-33.8,-10.8]** | -23.5 [-35.6,-5.9]* |
No Chest PT | 71 [64,80] | -30.8 [-37.0,21.6] | -34.2 [-36.6,-22.4] | -33.3 [-38.4,-19.8] | -26.0 [-30.5,-3.5] | -25.0 [-40.5,-12.8] | -38.8 [-41.5,-18.7] | |
Chest PT | 71 [65,76] | -18.1 [-36.2,4.9] | -20.2 [-34.9,-2.5] | -23.3 [-36.7,-2.9]* | -21.2 [-40.0,-11.6] | -26.0 [-33.3,-9.6]** | -16.0 [-34.5,-2.3] | |
TLC % predicted | All | 103 [93,115] | 12.0 [0.8,31.8] | 8.9 [-2.3,41.2] | 19.5 [4.8,41.7] | 20.9 [-1.0,40.6] | 21.8 [1.5,44.4] | 24.0 [-0.3,39.0] |
No Chest PT | 112 [101,129] | 8.2 [-3.1,24.1] | 6.7 [2.9,62.0] | 19.5 [-0.2,64.2] | 23.2 [1.0,96.2] | 13.4 [-4.8,-74.0] | 13.6 [-2.9,63.2] | |
Chest PT | 100 [88,109] | 22.7 [4.9,40.3] | 11.1 [-2.7,39.5] | 21.0 [5.7,38.2] | 15.4 [-1.6,37.5] | 24.3 [9.4,43.8]* | 26.5 [8.3,38.7]* | |
RV % predicted | All | 116 [99,150] | 24.0 [-7.4,64.0] | 21.8 [-1.4,86.3] | 49.1 [10.3,68.3] | 41.6 [-2.3,87.2] | 32.5 [7.1,88.0] | 46.3 [-3.2,77.5] |
No Chest PT | 120 [109,163] | 22.2 [-6.3,58.6] | 4.8 [-5.6,97.3] | 27.7 [-6.7,111.9] | 64.6 [4.9,145.8] | 12.5 [5.6,147.8] | 28.2 [-9.9,104.0]* | |
Chest PT | 115 [92,131] | 26.0 [-11.0,85.1] | 31.1 [-26.6,82.6] | 53.1 [24.3,68.3]* | 31.4 [-3.8,72.6] | 38.8 [14.7,87.3] | 54.5 [10.8,73.6] |
* p < 0.05; **p < 0.01. p value based on Wilcoxon Sum Rank test for paired comparisons. Baseline data displayed as raw data. Follow up data displayed as percent change compared with baseline.
FVC = forced vital capacity; FEV1 = forced expiratory volume in one second; TLC = total lung capacity; RV = residual volume; PT = physical therapy.