Figure 3.

The model describing the correlation between (log transformed values of) R_aw and serum concentration of ADMA in the whole data set (n=74).

Notes: The x-axis shows the common logarithm of serum ADMA concentration (in μmol/L), while the y-axis denotes the common logarithm of R_aw (in kPa·s/L). The blue and red dots indicate the raw (ie, original) values and fitted values obtained by multiple linear regression, respectively. The green and orange lines indicate the curves fitted to the raw data and to data provided by multiple linear regression. Fitting was done by locally weighted scatterplot smoothing (lowess).

Abbreviations: R_aw, airway resistance; ADMA, asymmetric dimethylarginine.