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The Egyptian Journal of Bronchology

Table 6 Correlation between sleep efficiency and BMI, FEV1, and mMRC dyspnea scale among all studied COPD patients

From: Sleep quality in stable chronic obstructive pulmonary disease patients in Zagazig University Hospitals, Egypt

Ā 

r

P value

BMI %

āˆ’ 0.612

< 0.001

FEV1

0.660

< 0.01

mMRC dyspnea scale

āˆ’ 0.540

< 0.05

  1. BMI body mass index, FEV1 forced expiratory volume at first second, mMRC modified Medical Research Council
  2. S = P value < 0.05, HS = P value < 0.001
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