\begin{tabular}{*{3}{l}}
\hline
                  & \multicolumn{2}{c}{M1}   \tabularnewline
                   &Estimate  &(S.E.)  \tabularnewline
 \hline
 \hline
   (Intercept)     &136.452***   &   (1.099) \tabularnewline
   genderM         &45.443***   &   (1.555) \tabularnewline
 \hline
 N                 &200       &        \tabularnewline
 RMSE             &10.993         & \tabularnewline
 $R^2$             &0.812         & \tabularnewline
 \hline
\hline
 
 \multicolumn{3}{c}{${*  p}\le 0.05$${*\!\!*  p}\le 0.01$${*\!\!*\!\!*  p}\le 0.001$}\tabularnewline
 \end{tabular}