esttab  results1 results2 using "$repodir/output/tables/tract_xregs.tex" , ///
    se noconstant label star(* 0.10 ** 0.05 *** 0.01) replace  ///
    nonotes compress nomtitles booktabs ///
    s(modelsample modelobs, ///
        label("Sample" "N"))
esttab sumstats1 using "$repodir/output/tables/tract_sumstats.tex", booktabs label nonumbers ///
    cells("mean p50 min max sd") replace