\begin{table}[t]
\centering
\scriptsize
\setlength{\tabcolsep}{3pt}
\renewcommand{\arraystretch}{1.0}
\begin{tabular}{llcc @{\hspace{10pt}} lcc}
\toprule
& \multicolumn{3}{c}{\textbf{westernized (2)}} & \multicolumn{3}{c}{\textbf{healthy/disease (2)}} \\
\cmidrule(lr){2-4} \cmidrule(lr){5-7}
\textbf{Structure} & \textbf{Component} & \textbf{Acc.} & \textbf{Imp.} & \textbf{Component} & \textbf{Acc.} & \textbf{Imp.} \\
\midrule
\multirow{3}{*}{Depth} 
& $\leq$0 (coarsest) & .934 & 0.1\% & $\leq$0 (coarsest) & .613 & 0.3\% \\
& $\leq$3 & .956 & 5.3\% & $\leq$3 & .667 & 6.4\% \\
& $\leq$6 (all) & .967 & 100\% & $\leq$6 (all) & .682 & 100\% \\
\midrule
\multirow{3}{*}{Taxon} 
& Prevotella & -- & 1.7\% & Lachnoclostridium & -- & 0.6\% \\
& Murimonas & -- & 1.4\% & Bifidobacterium & -- & 0.3\% \\
& Bacteroides & -- & 1.3\% & Enterococcus & -- & 0.3\% \\
% & Lactobacillus & -- & 1.3\% & Blautia & -- & 0.3\% \\
\bottomrule
\end{tabular}
\vspace{3pt}
\caption{Tree-level inference on \texttt{cMD3}. Importance aggregated by depth (cumulative) and taxon.}
\vspace{-15pt}
\label{tab:tree-cmd3}
\end{table}