I have a problem with siunitx, such that a space is being added between the decimals and the closing parenthesis for every cell. The fix suggested here did not work for me. A MWE is included below, with a screenshot identifying the issue.
I assume my \sisetup{} is to blame.
\documentclass{article}
\usepackage{siunitx,booktabs,adjustbox}
\begin{document}
\begin{table}[h]
\centering
\caption{Estimated Main Effects (Social Index)}
\begin{adjustbox}{width = \textwidth, center}
\sisetup{
detect-all,
table-number-alignment = center,
table-figures-integer = 1,
table-figures-decimal = 3,
table-space-text-post = ***,
input-symbols = {()},
}
\begin{tabular}{@{\extracolsep{6pt}}r*{4}{S[table-format = <1.2, table-number-alignment = center, table-column-width=2.5cm]}}
\toprule
& \multicolumn{2}{c}{\textbf{Unadjusted}} & \multicolumn{2}{c}{\textbf{Adjusted}} \\
& \multicolumn{1}{c}{\textit{Effect}} & \multicolumn{1}{c}{\textit{(SE)}} & \multicolumn{1}{c}{\textit{Effect}} & \multicolumn{1}{c}{\textit{(SE)}} \\\cmidrule{2-2}\cmidrule{3-3}\cmidrule{4-4}\cmidrule{5-5}
\textbf{\textit{Vars1}} & & & & \\
Var1 & 0.107 & (0.021) & 0.106 & (0.021) \\
\textbf{\textit{Vars2}} & & & & \\
Var2a & -0.041 & (0.029) & -0.039 & (0.029) \\
Var2b & -0.085 & (0.030) & -0.083 & (0.030) \\
Var2c & -0.130 & (0.030) & -0.134 & (0.029) \\
\bottomrule
\end{tabular}
\end{adjustbox}
\end{table}
\end{document}


