Close  
Figure 6: PassingBablok regression analysis showing (a) unadjusted C6 Plus versus C6 standardized (the wider deviation of the values from one another can clearly be seen), and (b) adjusted C6 Plus versus C6 standardized (the deviation in the values is much narrower). Red dashed line shows the confidence interval of the regression line expected averages of SDF; red dotted line is the identity line and blue is the regression line of the measured averages. SDF: sperm DNA fragmentation; s.d.: standard deviation. 
