Frequencies for first 10,000 rows of tgs variable in namcs2013 dataset :

          Was blood for |
    triglycerides (TGS) |
 test drawn at visit or |
 within past 12 months? |      Freq.     Percent        Cum.
------------------------+-----------------------------------
                  Blank |        667        6.67        6.67
N/A, provider not asked |      2,741       27.41       34.08
                    Yes |      1,599       15.99       50.07
             None found |      4,993       49.93      100.00
------------------------+-----------------------------------
                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017