. generate policy1 = walkdist > 500 \& !diabetesp \& !missing(walkdist)
{\smallskip}
. 
. estat policyeval policy1 transtype
{\smallskip}
Treatment-assignment policy evaluation                     Number of obs = 937
{\smallskip}
\HLI{13}{\TOPT}\HLI{64}
             {\VBAR}               Robust
             {\VBAR} Coefficient  std. err.      z    P>|z|     [95\% conf. interval]
\HLI{13}{\PLUS}\HLI{64}
Value        {\VBAR}
      policy {\VBAR}
    policy1  {\VBAR}   72.66426    .714435   101.71   0.000     71.26399    74.06452
  transtype  {\VBAR}   66.53891   .5149955   129.20   0.000     65.52954    67.54828
\HLI{13}{\PLUS}\HLI{64}
Contrast     {\VBAR}
      policy {\VBAR}
   (policy1  {\VBAR}
         vs  {\VBAR}
 transtype)  {\VBAR}   6.125348   .9130896     6.71   0.000     4.335725     7.91497
\HLI{13}{\BOTT}\HLI{64}
