\begin{tabular}{l*{4}{r @{} l}}
\hline
                         &\multicolumn{8}{c}{\shortstack{Take-up of ``more'' visits contract}}\\
                         &\multicolumn{2}{c}{\shortstack{8+ visits \\ (1)}}&\multicolumn{2}{c}{\shortstack{12+ visits \\ (2)}}&\multicolumn{2}{c}{\shortstack{16+ visits \\ (3)}}&\multicolumn{2}{c}{\shortstack{Pooled \\ (4)}}\\
\hline
Behavior change premium  &     --0.040&   &     --0.013&   &     --0.036&   &     --0.028&   \\
(z-score)                &     (0.025)&   &     (0.024)&   &     (0.029)&   &     (0.022)&   \\
\hline
Dep. var. mean:          &        0.65&   &        0.52&   &        0.36&   &        0.51&   \\
                         &      (0.02)&   &      (0.02)&   &      (0.02)&   &      (0.01)&   \\
\hline  Wave FEs         &         Yes&   &         Yes&   &         Yes&   &         Yes&   \\
Contract FEs             &          No&   &          No&   &          No&   &         Yes&   \\
N                        &         429&   &         622&   &         429&   &       1,480&   \\
Clusters                 &         429&   &         622&   &         429&   &         622&   \\
\hline\hline
\end{tabular}