We also deleted the ones in which there were too many missing values.
Because in CGSS2008 there are too many missing values to this question, this study uses another measurement as a substitute.
The data related to mediation prior to 1999 has too many missing values and thus cannot be analyzed.
Moreover, for the years 1990, 1992, and 1995, 'birth1y' contains many missing values, although they are evenly spread across all states.
Unfortunately, the most important multivariate analysis in this study could not be controlled for Wells score and D-dimer level, since there were too many missing values for both of these factors together.
This may be due to the fact that IL-6 and TNF-α, the most significant findings according to the literature, had too many missing values in our dataset to become significant.
We eliminated eight items because of too many missing values.
Second, the clinical data contained many missing values.
Some AT had many missing values in these data fields.
Microarray data however often contains many missing values.
Unfortunately, in this population-based study there were too many missing values.
