\begin{table}
\caption{Summary of
U-test results (95\% confidence): moving from WC to CC.
For all projects' results, see~\fig{ccwsprojs}. }\label{tbl:ccwc}
\begin{center}
{\footnotesize
\begin{tabular}{|r|c|c|p{2cm}|l|}\hline
%pd(inter) vs  & pf(intra) vs & &  \\
&$pd$    & $pf$ & &  \\
group & $WC \rightarrow CC$    &  $WC \rightarrow CC$& tables & $|tables|$ \\\hline\hline
a& increased               &        increased & CM1 KC1 KC2 MC2 MW1 PC1  & 6\\\hline
b& same                    & same             & KC3& 1\\\hline
\end{tabular}}
\end{center}
\end{table}

