Hi - I have two variables that I'd like to merge with their labels (I have gender represented in two datasets, so there would be no overlap in the same variable in the two datasets) but when I do concat, I'm getting the spaces in front and behind for the missing var's... advice?

Code:
egen GENDER3=concat(v_q1 c_q1), decode p(" ")



. tab GENDER3

    GENDER3 |      Freq.     Percent        Cum.
------------+-----------------------------------
   . Female |         76        9.45        9.45
     . Male |        326       40.55       50.00
   Female . |          2        0.25       50.25
     Male . |        400       49.75      100.00
------------+-----------------------------------
      Total |        804      100.00