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. 2017 Jun;9(6):1584–1591. doi: 10.21037/jtd.2017.05.49

Table 4. Changes of functional parameters as the effectiveness of pre- and postoperative pulmonary rehabilitation (PPO group).

Parameter PPO (pre- and postoperative pulmonary rehabilitation), n=72
Preoperative Postoperative
Before rehab. After rehab. Change, significance Before rehab. After rehab. Change, significance
FEV1 1.49±0.53 L (60.1±12.8%pred) 1.68±0.53 L (66.3±12.9%pred) +10.39% (P<0.0001) 1.21±0.43 L (48.4±12.7%pred) 1.30±0.40 L (51.8±13,0%pred) +7.14% (P=0.0247)
FVC 2.57±0.81 L (88.7±14.7%pred) 2.86±0.82 L (97.9±14.7%pred) +10.41% (P=0.0001) 2,.00±0.72 L (63.6±16.1%pred) 2.13±0.68 L (67.7±17.7%pred) +6.57% (P=0.1126)
6MWD (m) 388±86 439±83 +13.06% (P<0.0001) 337±111 397±105 +17.74% (P<0.0001)
mMRC 1.2±1.0 0.8±0.8 −35.30% (P=0.0002) 1.8±0.9 1.4±0.8 −18.47% (P=0.0017)
Grip strength (kg) 22.0±12.0 23.3±12.8 +5.69% (P=0.0057) 20.2±14.1 21.1±14.5 +4.23% (P=0.3658)
CAT 12.0±6.9 8.4±5.5 −30.08% (P<0.0001) 16.0±6.2 11.4±5.3 −28.75% (P<0.0001)

6MWD, 6 minutes walking distance; mMRC, Modified Medical Research Council Dyspnoea Scale; CAT, COPD Assessment Test; COPD, chronic obstructive pulmonary disease.