documentclass{scrartcl}
usepackage{caption,subcaption}
usepackage{pgfplots}
pgfplotsset{
    compat=1.3,
}

%Maintenance Subskala Kreuztabelle

begin{filecontents*}{data.txt}
    Name      x   niedrige  st1  hohe   st2
    niedrig$:$Traumabelastung  1  22.2  0   14.8  0
    hohe$:$Traumabelastung     2   23.1  0     18.8  0

end{filecontents*}

begin{document}

begin{figure}


    begin{tikzpicture}
    begin{axis}[
    title=A,
    bar width=50pt,
    ybar=0pt,
    ylabel={% Abbrecher},
    ymin=0,
    ymax=40,
    enlarge x limits=0.5,
    width=11cm,
    height=8cm,
    xticklabels from table={data.txt}{Name},
    xtick=data,
    xlabel near ticks,
%   extra x ticks={0.82, 1.5}, % I want to label bars with some extra numbers here therefore I need to move down "niedrige/hohe Traumabelastung".
%   extra x tick style={yshift=10mm, major tick length=0pt,
%   },
%   extra x tick labels={
%       textbf{2},
%       textbf{10}
%   },
    ticklabel style={/pgf/number format/.cd, use comma, 1000 sep = {}},
    nodes near coords,
    every node near coord/.append style={
        yshift=transformdirectiony(myshift+1.5),
        anchor=north,
        rotate=0,
        font=scriptsize
    },
    ymajorgrids=true,
    legend pos= north west,% Legende oben links in Abb.
    legend cell align=left% Rechtsbündige Ausrichtung der Legende
    ]
    addplot
    [draw = black,
    fill = gray!30!white,
    error bars/.cd,
    y dir=both,
    y explicit,
%   error mark=triangle*,
    error bar style={color=black}]
    table[
    x=x,
    y=niedrige,
    y error=st1,
    visualization depends on=1.25*thisrow{st1} as myshift,
    ]
    {data.txt};
    addlegendentry{niedrige Maintenance};
    addplot
    [draw = black,
    fill=white,
    error bars/.cd,
    y dir=both,
    y explicit,
%   error mark=triangle*,
    error bar style={color=black}]
    table[
    x=x,
    y=hohe,
    y error=st2,
    visualization depends on=1.25*thisrow{st2} as myshift,
    ]
    {data.txt};
    addlegendentry{hohe Maintenance};

    end{axis}

    end{tikzpicture}

    caption{Abbrecherquoten der verschiedenen Gruppen. Es werden Abbrecherquoten in Prozent und 95% Konfidenzintervalle f"ur drei Gruppen f"ur hohe Traumabelastung und niedrige Traumabelastung unterteilt nach niedrigem und hohem Motivationswert angegeben. Zahlen unterhalb der Balken geben die Anzahl der Patienten in der jeweiligen Gruppe an. textbf{A}) Maintenance Subskala, textbf{B}) Contemplation Subskala, textbf{C}) RTC Wert.}

    end{figure}


end{document}