\begin{table}%t7
%\centering
\par
   \caption{Accuracy of the $K_{\rm S}=12$~mag criterion to separate companions and background stars. This table contains 69~out of the 72~secondaries with multi-color observations in the ADONIS or NACO dataset. Three secondaries (1~candidate companion; 2~background stars) for which no $K_{\rm S}$ magnitudes are available, are not included. The first column shows the status of the secondary (c = confirmed companion, ?~=~candidate companion, b~=~background star). Columns~2 to~5 list the distribution over status for secondaries with $K_{\rm S}<12$~mag and $K_{\rm S}>12$~mag. Depending on the true nature of the candidate companion stars, the $K_{\rm S}=12$~mag criterion correctly classifies the secondaries in $\sim $80\% of the cases. \label{table: k12comparison}}
  \begin{tabular}{c cc cc c}
    \hline
    Status & \multicolumn{2}{l}{$K_{\rm S} < 12$~mag} & \multicolumn{2}{l}{$K_{\rm S} > 12$~mag} & Total \\
    \hline
    c & 23 &(70\%) & 2& (6\%)& 25 \\
    ? & 4 &(12\%)& 7 &(19\%)& 11 \\
    b & 6 &(18\%)& 27& (75\%) & 33 \\
    \hline
    Total  & 33 &(100\%)& 36& (100\%)& 69 \\  
    \hline
  \end{tabular} 
\end{table}