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. 2022 Aug 31;2022:2073068. doi: 10.1155/2022/2073068

Table 6.

Respiratory variables per assessment period.

Variables Assessment 1
mean ± SD
95% CI (min-max)
Assessment 2
mean ± SD
95% CI (min-max)
Assessment 3
mean ± SD
95% CI (min-max)
Assessment 4
mean ± SD
95% CI (min-max)
p value
MIP (cmH20) 44.1 ± 16.38 (32.38 55.81) 43 ± 15.47 (31.92−54.07) 52.6 ± 19.16& (38.88−66.31) 46 ± 16.12& (34.46−57.53) p=0.001(GG)
Effect size = 0.528
Power = 0.961

MEP (cmH20) 37.9 ± 14.31 (27.65−48.14) 36.1 ± 11.72(27.71−44.48) 45.8 ± 12.4& (36.92−54.67) 41.7 ± 10.9& (33.89−49.5) p=0.001
Effect size = 0.567
Power = 0.998

FVC (%) 84.2 ± 19.64 (70.14−98.25) 79.2 ± 18.17(66.2−92.19) 94.8 ± 21.25 (79.59−110) 87.4 ± 17.89 (74.59−100.2) p=0.001
Effect size = 0.374
Power = 0.954

FEV1 (%) 88.1 ± 22.46 (72.02−104.17) 86.09 ± 21.18 (71.85−100.32) 91.5 ± 23.21 (74.89−108.1) 85.8 ± 23.17 (69.21−102.38) p=0.074

FEV1/FVC 81.02 ± 10.04 (73.83−88.20) 82. ± 7.97 (77.18−88.6) 76.53 ± 7.53 (69.14−79.91) 77.1 ± 7.65 (71.62−82.57) p=0.006
Effect size = 0.308
Power = 0.872

MVV (%) 57.2 ± 24.74 (39.5−74.89) 55.95 ± 24.91 (38.12−73.77) 69.8 ± 18.85& (56.31−83.28) 63.1 ± 21.47& (47.74−78.45) p ≤ 0.001
Effect size = 0.588
Power = 0.999

Source: the author (2020). Legend: SD: standard deviation; 95% CI: 95% confidence interval; min: minimum; max: maximum; MIP: maximum inspiratory pressure; MEP: maximum expiratory pressure; cmH2O: centimeters of the water column; %: percent; FVC: forced vital capacity; FEV1: forced expiratory volume; FEV1/FVC: tiffeneau index; MVV: maximum voluntary ventilation; GG: sphericity not assumed, greenhouse-Geisser correction used; : astatistical difference between assessments 2 and 3; &: astatistical difference between assessments 3 and 4.