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Table 3 Multiple linear regression with functional MMRC score as dependent variable and those parameters with significant correlation with it. Men included: BMI, FEV1%, IC/TLC, DLCO, PaO2 and P0.1/Pimax; Women included: BMI, FEV1%, IC/TLC and P0.1/Pimax.

From: Gender and respiratory factors associated with dyspnea in chronic obstructive pulmonary disease

  Parameter Regression Coefficient 95% CI p-Value
Men r 2 = 0.81 BMI -0.70 -0.23 to -0.09 0.001
  DLCO 0.32 0.001 to 0.02 0.037
  PaO 2 -0.78 -0.08 to -0.05 <0.001
  P 0.1 /P imax 0.20 0.16 to 21.6 0.047
Women r 2 = 0.30 P 0.1 /P imax 0.57 4.9 to 17.1 0.001