\begin{tabular}{lcccc}\hline\hline\multicolumn{5}{l}{\textbf{Dep. variable: $\Delta$ weekly visits}}\\ &\multicolumn{2}{c}{All users}&\multicolumn{2}{c}{Low attendance}\\ &\multicolumn{2}{c}{}&\multicolumn{2}{c}{users}\\ &Coeff. & Std. Err. & Coeff. & Std. Err.\\
\cmidrule(l{4pt}r{4pt}){2-3}\cmidrule(l{4pt}r{4pt}){4-5}
Treated             &      -0.175   &     (0.204)&      -0.313   &     (0.293)\\
Treated $\times$ Early Post Treatment&       0.274   &     (0.186)&       0.510*  &     (0.279)\\
Early Post Treatment&       0.043   &     (0.129)&       0.032   &     (0.195)\\
\hline
R$^2$               &       0.005   &            &       0.018   &            \\
Observations        &        1558   &            &         797   &            \\
\hline\hline\end{tabular}
